The major observation in positive gram stain would be the presence of paired red spheres bacteria, which means that option C should be the right answer.
Gram stain is the test done to identify the bacteria or differentiate them. The stain used is purple in color. If the stain is taken by the bacteria and turns it into red or pink, it implies that bacteria is gram negative. If the bacteria retains purple color, it means that it is gram positive. It is generally done to identify the presence of bacteria or diagnose fungal infections. In case of gram positive stain, the color of bacterial colonies would be red under microscope and since they agglomerate together due to oxidase test, the shape becomes slightly circular. Neisseria gonnorrhoeae is a kind of bacteria involved in affecting the reproductive glands, cervix or urethra if the person is suffering from sexually transmitted diseases. It can also be passed on to other person during sexual contact.
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To refer to complete question, see below:
Neisseria gonorrhoeae is a Gram-negative diplococcus that typically causes symptomatic infections in males. The presence of Neisseria gonorrhoeae is urethral pus is diagnostic for gonorrhea in males. What would be observed in a positive Gram stain?
a. paired red rods
b. paired purple rods
c. paired red spheres
d. paired purple spheres
______ synthesis begins at a site within a chromosome called the origin of replication.
The origin of replication is a location on a chromosome where DNA synthesis starts.
What is the name of the replication's origin?The ori is just where DNA replication starts, allowing plasmids to replicate themselves in order to live inside cells. Plasmids often use different replicons than the ones that are used to replicate the chromosomal DNA of their hosts, but they still rely on the host machinery to create more copies of their DNA.
Where does replication's synthesis start?DNA double helix unwinding occurs at specified locations, known as origins, where DNA replication begins. The production of a primer, a brief section of RNA that serves as the starting point for the synthesis of fresh DNA, follows.
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note that urea is sometimes recycled, meaning it is reabsorbed in the medullary collecting duct and secreted back into the filtrate at the thin limb of the nephron loop. your instructor may want you to take this into account in your tracing of the urea molecule. if so, write the alternate path here:
A high osmolarity is produced by the urea recycling, which confines the majority of the urea in the medulla and aids in water absorption.
Describe the alternate path of tracing of the urea molecule.Urea molecules are carried by the blood as it enters the glomerulus; these molecules are subsequently filtered by Bowman's capsule before entering the proximal convoluted tubules. The Henle's loop receives the reabsorbed portion of the entering urea. The medulla of the kidney secretes urea into the lumen of the tubules in the form of a loop, bringing the concentration of urea to 100%.
From the loop, 100% of the urea enters the distal convolved tubules (DCT). Thirty percent of the substance in distal convoluted tubules is reabsorbed to the cortex, while the remaining seventy percent enters collecting tubules. In the medulla, fifty percent is being reabsorbed. The remaining 5% is reabsorbed by the arteries and vasa recta, which are connected to the nephron, while 15% is discharged as urine.
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which activty occurs in the process of photosynthesis
Answer:
The three episodes that occur during the photosynthesis cycle are: Light energy is absorbed by chlorophyll, which breaks down water molecules into oxygen and hydrogen. Light energy is converted into chemical energy. The reduction of carbon dioxide leads to the formation of carbohydrates.
Answer:
solar energy is harvested as chemical energy in a process that converts water and carbon dioxide to glucose
Explanation:
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Answer:
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The most common human health response to air pollution is?
A. inflammatory responses in sensitive tissues.
B. lung cancer.
Answer: correct answer is A Inflammatory response in sensitive tissues
Explanation:
The most common human health response to air pollution is inflammatory responses in sensitive tissues. Thus the correct option is A.
What is Air pollution?
Any unwanted substance entering into the environment degrades the quality of air and makes it difficult in breathing, causing various health issues is refers as air pollution.
Particles and some gases in the air that contribute to air pollution are produced by factories, soil, dust, mould spores, flames, volcanoes, and vehicle and smoke from truck emissions.
As air pollution is reactive, it has been demonstrated that breathing it causes inflammation of the airways. Your muscles can become weakened and your heart's arteries can constrict as a result of the immune system's reaction to the particles, increasing your risk of having a heart attack.
Therefore, option A is appropriate.
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apart from the base sequence, what is different about the ends of restriction fragments produced by the following restriction enzymes? what type of ends are produced?(the arrow represents the site of cleavage in each strand
The difference about the ends of restriction enzymes is that the HaeIII produces a blunt end when cut whereas MaeI and CfoI produce sticky ends when cut by the enzyme.
Restriction enzymes also have another name called molecular scissors. These are the enzymes that cut the continuous strand of DNA by producing a nick at the phosphodiester bond of the backbone. These are divided into two categories: exonucleases and endonucleases.
Sticky ends are the region produced by the cut through restriction enzymes. In this both the strands of DNA are cut at separate places and therefore one strand remains longer than the other strand.
The given question is incomplete, the complete question is:
Apart from the base sequence, what is different about the ends of restriction fragments produced by the following restriction enzymes? what type of ends are produced?(the arrow represents the site of cleavage in each strand).
HaeIII (5'-GG^CC-3')MaeI (5'-C^TAG-3')CfoI (5'-GCG^C-3')To know more about restriction enzymes, here
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Is a decade enough time to determine climatic changes in temperature, i. E. , to determine if global warming has stopped?.
No. The Earth's surface temperature would take thousands of years to decrease and reach its pre-industrial level, even if greenhouse gas production were to immediately stop.
What is global warming?Sea levels are rising, cloud forests are dying, and wildlife is scurrying to keep up. Glaciers are melting. The majority of the warming over the past century has clearly been caused by people, who released heat-trapping gases to power our modern lifestyles. Their concentrations, known as greenhouse gases, are presently higher than they have ever been in the previous 800,000 years.
We frequently refer to the effect as global warming, but it actually results in a variety of regionally distinct changes to the Earth's climate or long-term weather patterns. Although many people confuse the terms global warming and climate change, scientists refer to the complex changes currently influencing our planet's weather and climate systems as "climate change" since certain regions are actually getting colder.
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Which of the following is an accurate comparison of watersheds and aquifers?
A.
one involves water collection above ground and the other below ground
B.
one involves small bodies of water and the other involves large bodies of water
C.
one contains water that is retrievable and the other contains irretrievable water
D.
one contains fresh water and the other contains saltwater
On the other hand, deeper (confined) aquifers are less likely to follow surface features and have watersheds (or basins) that are governed by geologic reasons. Thus, option C is correct.
What comparison of watersheds and aquifers?In general, surface aquifers (the water table) resemble surface-water watersheds, and their flow typically does not cross borders at the surface.
Due to the fact that groundwater flows from high points (where it divides) to low places, groundwater watersheds conceptually are comparable to surface-water watersheds (outlets, discharge areas).
Therefore, A watershed is made up of both the subsurface groundwater and aquifers that provide water to the network of streams that drains the surface land area.
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What are viruses that do not need to attach itself to an existing file to spread?.
Worms as example of a standalone malware software that may replicate itself and spread to other systems is a computer worm. To propagate itself, malware makes advantage of the computer network.
It disseminates itself through the computer network. It doesn't require an existing software to attach itself to, unlike a computer infection. A worm can replicate itself to infect other computers, much like a virus can. A worm, as opposed to a virus, doesn't require attachment to an already-running program or a prompt before running. Malware, or malicious software, refers to software that has been programmed with malevolent intent. Anything from a virus, worm, Trojan horse program, or even spyware can be considered malicious code. Because it has the potential to damage your computer or mobile device, this code is harmful. Without your knowledge, it can access private computer networks, gather critical information, and even display intrusive advertisements.
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what is meant by the net movement of particles
The net movement of particles refers to the overall direction and magnitude of the movement of particles from one location to another.
What is net movement of particles?The net movement of particles refers to the overall movement of particles from one location to another. This movement can be influenced by various factors, such as temperature, concentration, and the presence of a membrane or other barrier.
In the context of diffusion, the net movement of particles refers to the movement of particles from an area of higher concentration to an area of lower concentration. This movement occurs as a result of the natural tendency of particles to move from areas of higher concentration to lower concentration in order to achieve equilibrium.
In the context of osmosis, the net movement of particles refers to the movement of water molecules across a selectively permeable membrane. This movement occurs as a result of the concentration gradient of the solute (the dissolved substance) on either side of the membrane. If the concentration of solute is higher on one side of the membrane, water molecules will tend to move from the side with a lower concentration of solute to the side with a higher concentration in order to dilute the solute and achieve equilibrium.
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Which of these is NOT a carcinogen? testosterone UV light cigarette smoke fat all of the above are carcinogens
Option d(all of the above mentioned are carcinogens) is correct. Testosterone, UV light, cigarette smoke, fats all aren't a carcinogen Serum concentrations of testosterone, estradiol and intercourse hormone-binding globulin (SHBG) had been measured.
We in comparison geometric imply concentrations throughout ranges of smoking, alcohol, and bodily pastime the usage of a couple of linear regression. In this nationally-consultant pattern of men, smoking, alcohol and bodily pastime had been related to hormones and SHBG, for this reason those elements have to be taken into consideration as viable confounders or upstream variables in research of hormones and men’s health, such as prostate most cancers.
These is NOT a carcinogen and those materials encompass caffeine, isopropyl alcohol (now no longer what you drink), and diazepam, the typical call for Valium. Substances fall into this class if there is now no longer sufficient proof to mention that they reason most cancers or probable do not reason most cancers — the old "greater studies is needed" rationale.
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you are a biochemist working for a pharmaceutical company. you have been tasked with identifying a sample of nucleic acid. it is determined that the sample contains the bases cytosine, guanine, adenine, and phosphate groups. is the sample dna or rna?
The sample that is being discussed in the problem can be either DNA or RNA.
DNA and RNA are both very important molecules. Both of these hold immense value in biology since they store all the vital information required for living. The basic structures of the two are quite similar; the only difference is that DNA is double-stranded while RNA has a single strand.
DNA and RNA molecules both contain a five-carbon sugar (ribose), a phosphate group, and a nitrogenous base. Except for cytosine, guanine, and adenine, the fourth part is the phosphate group that exists in both. RNA has Uracil while DNA has Thymine.
Since it has not been mentioned here what the fourth part might be, the sample might be a DNA or an RNA molecule.
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What is the most important reason a cell would have translational control over the regulation of gene expression?.
Proteins can be quickly escalated on off and on at the transcriptional level to adjust to the requirements of the cell.
What is a cell?
the most basic form that is capable of supporting life on its own and compensating all other living entities, including tissues in the body. The three essential parts of a cell are the cells, the centre, and the cytoplasm. A cellular membranes, which encloses the cell, controls the chemicals that enter and exit.
What functions do cells perform?
They provide the body with structure, take in nutrients from meals, convert those into fuel, and carry out certain tasks. Additionally, cells hold the genetic code for the organism and are capable of self-replication. Different elements make up each component of a cell.
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What childhood condition is a particular risk for causing damage to the retina of the eyesor damageto arteries?.
Retinopathy of prematurity (ROP) is the childhood condition that bears a particular risk for causing damage to the retina of the eye, causing damage to arteries.
The blood arteries that supply the retina typically haven't reached their full size when children are born prematurely. ROP happens when these vessels temporarily cease growing before randomly and abnormally sprouting again. The new vessels are flimsy and prone to leak, scarring the retina.
Premature infants may develop the eye condition retinopathy of prematurity (ROP). Blindness may result from the aberrant blood vessel growth in the retina. The retina, the light-sensitive nerve tissue that lines the inner back wall of the eye, experiences aberrant blood vessel growth as a result of retinopathy of prematurity. ROP's root causes are still unclear to medical professionals. However, the risk of developing ROP increases with the baby's prematurity and birth weight.
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A ______ is synthesized from cholesterol and can diffuse across the plasma membrane.
A Steroid hormone is synthesized from cholesterol and can diffuse throughout the plasma membrane.
Steroid hormones are derived from LDL cholesterol and therefore can with no trouble diffuse via the lipid bilayer of the cell membrane to reach the intracellular receptor.
The steroid hormones synthesized in the adrenal cortex, the gonads, and the placenta are all derived from LDL cholesterol and many are of medical significance.
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An area is contaminated with an element which has a half-life of 30 years. How long does it take until only 1 percent of the element remains?.
If the element has a half-life of 30 years, the time it takes only until 1 percent of the element remains is around 199.3 years.
Half-life is the time taken for an unstable isotope to decay into half of its original value.
Given that:
Half-life (t1/2) = 30 yearsInitial amount = N0Final amount = NN = 1% N0h = number of half-cyclesN = N0 (1/2)^h
N/N0 = (1/2)^h
N/N0 = 1/100 (since N is 1% of N0), so
1/100 = (1/2)^h
log (1/100) = hlog(1/2)
h = log(1/100) / log(1/2)
= log(100)/log(2)
The time needed = h * t/2 = log(100)/log(2) * 30 years
= 199.3 years
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how active transport solve the problem
Active transport solves the problem because it can both import and export materials across the phospholipid bilayer.
Active transport is a critical process that allows cells to take in molecules or ions from the environment in defiance of the concentration gradient.
Moving molecules or ions across a cell membrane against a concentration gradient from one area of lower concentration to another is known as active transport. Active transport is necessary for this movement and requires cellular energy.
To move materials against a concentration or electrochemical gradient, a cell must expend energy. Active transport systems utilize energy, typically in the form of ATP, to maintain the right concentrations of ions and molecules in living cells. They do this exact function.
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theoretically, contraction would not occur if:
Theoretically, contraction would not occur if :Lemma
In morphology and lexicography, a lemma (plural lemmas or lemmata) is the canonical shape, dictionary shape, or citation shape of a fixed of word bureaucracy. In English, for example, damage, breaks, broke, damaged and breaking are forms of the same lexeme, with damage as the lemma by way of which they are indexed.
A assertion that has been tested to be genuine. • Proposition : A much less critical but despite the fact that exciting proper assertion. • Lemma: a true declaration utilized in proving different true statements (that is, a less vital theorem that is useful inside the proof of different consequences).
In psycholinguistics, a lemma (plural lemmas or lemmata) is an summary conceptual shape of a word that has been mentally decided on for utterance inside the early levels of speech manufacturing. A lemma represents a specific meaning but does no longer have any unique sounds which are connected to it.
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for each glucose that enters glycolysis, _____ nadh h are produced by the citric acid cycle.
Answer: 6
Explanation:
what is the name of the enzyme that hydrogen ions flow through to make atp?
The enzyme that hydrogen ions flow through to make ATP is ATP synthase.
What is the process of oxidative phosphorylation?
During chemiosmosis, hydrogen ions are pumped across the membrane by a sequence of processes that make up the electron transport chain, creating an electrochemical gradient.
Only a membrane protein known as ATP synthase allows hydrogen ions in the matrix space to pass through the inner mitochondrial membrane.
ADP is converted into ATP by ATP synthase as protons pass through.
Oxidative phosphorylation describes the process by which ATP is produced in mitochondria by chemiosmosis.
What is ATP synthase?
Adenosine triphosphate, an energy storage molecule, is made from adenosine diphosphate and inorganic phosphate by the enzyme ATP synthase. As it modifies ADP by forming a P-O bond, it is categorized as a ligase. A molecular device is called ATP synthase.
Hence, ATP synthase is the enzyme that hydrogen ions flows through to make ATP
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Need help with 5 and 6 please they the last one
5.) B
6.) B
Explanation: For question 6, they'd move apart.
What will happen when the ribosome shifts one codon further on the mrna, assuming the next codon is not a stop codon?.
The tRNA will get rejected from the ribosome. A new tRNA will bind to the ribosome.
Termination happens at the step when ribosome comes at stop codon (UAA, UAG, and UGA). These sites is place were no tRNA molecules is present to recognize the codons, hence no translation will take place and it will terminate.
Stop codons are not present , an organism will not be able to produce specific proteins. The new polypeptide (protein) chain will just grow and grow until the cell bursts . Three important stop codons in the genetic Code are UAG, UAA, and UGA.
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The asteroid belt is found between which two planets?
O A. Mars and Jupiter
B.
Earth and Mars
O C.
Jupiter and Saturn
OD. Venus and Earth
OE.
Saturn and Neptune
Answer:
I'm pretty confident it's Mars and Jupiter
Explanation:
I think it's 4 plants before and after the belt, and using the phrase "My Very Educated Mother Just Served Us Nachos", Mother and Just are Mars and Jupiter, so I think it's right
Answer: Your answer is A. Mars and Jupiter
Explanation: The order of the planets are Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune and in between Mars and jupiter is the asteroid belt. Also I really like outer space and I want to be an astronaut when I grow up so I'm learning a lot about space. :P
Hope it helped :D
Find the probability that a deodorant is for men, given that it has a botanic scent.
The probability that a deodrant is for men, given that it has a botanic scent is 0.28.
Calculating probability:Given to us is that
P=0.55 for men.
P=0.18 for botanical fragrance
P=0.05 for men and botanic
Given that a deodorant has a botanical aroma, we need to determine the likelihood that it is for men.
(For men/Botanical smell)
Constraint-based probability
P(A/B) = P(A∪B)/ P (B)
Using the equation
For men/Botanical scent P((P(For men/Botanical fragrance) = 0.05/0.18
P=0.28 (For men/Botanical scent)
What is probability?The probability is computed by dividing the total number of possible outcomes by the number of possible ways the event could occur. Probability and odds are two distinct ideas. Odds are calculated by dividing the likelihood of an event by the likelihood that it won't.
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Complete question is :
Vera examined a random sample of deodorants distributed by her company. She found the following probabilities:
P(for men)=0.55
P(botanic scent)=0.18
P(for men and botanic)=0.05
Find the probability that a deodorant is for men, given that it has a botanic scent.
. a group of scientists is trying to synthesize a new artificial compound to imitate the effects of a known protein that influences headaches. they have turned to you for advice. which of the following compounds is most likely to mimic the effects of the protein?
Synthesize a new artificial compound to imitate the effects of a known protein that influences headaches. they have turned to you for advice. Copper.
Positive environmental elements are not unusual triggers, along with sleep disruption, dehydration, skipped meals, a few meals, hormone fluctuations and publicity to chemical substances. “The intention is to deal with migraine signs proper away and to prevent symptoms by avoiding or changing triggers,” Dr. Jackson says.
A number of sleep or fitness problems, in addition to private conduct, can trigger a headache when you wake up. Sleep apnea, migraine, and lack of sleep are commonplace culprits. but, teeth grinding, alcohol use, and certain medications also can cause you to wake up with a headache.
Even mild dehydration can motive a headache. usually, different symptoms of dehydration (consisting of fatigue, dizziness, excessive thirst and dry mouth) seem at the side of headache pain. Dehydration headaches frequently get higher with at-domestic remedies like ingesting water, resting and taking on-the-counter pain relievers.
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which statement best describes the difference between cell division in plant and animal cells? a. cytokinesis occurs by formation of a cleavage furrow in animal cells, but not plant cells. b. chromosome replication occurs during interphase in animal cells, while in plant cells, replication occurs when the nuclear envelope disintegrates. c. cytokinesis occurs by formation of a cleavage furrow in plant cells, but not animal cells. d. centrosomes play an important role in spindle formation in plant cells, but not in animal cells. e. animal cells divide via the cell cycle whereas plant cells divide by binary fission.
The statement that best describes cell division in plant and animal cells is that cytokinesis occurs by formation of a cleavage furrow in animal cells, but not plant cells, which means that option A is correct answer.
Cell division is defined as the process in which cells of the organisms divide into daughter nuclei, in order for the multiplication of organism and sustainability of life. There are generally two types of cell division namely Mitosis and Meiosis. Mitosis is the process in which cell duplicates its chromosomal material and then divides it into two daughter nuclei. Meiosis on the other hand involves formation of eggs and sperm cells. Cytokinesis is defined as the method of division of cytoplasm due to which the genetic material and other organelles get divided into daughter cells. In plant cells, cell plate is formed during cytokinesis and in animal cell, cleavage furrow is formed and it deepens until daughter cells split from parent. It occurs during anaphase of mitosis process.
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true or false: organic matter that enters waterways such as rivers is referred to as tannin. question 18 options: true false
Tannins are dark organic compounds found in plants and express several properties, like antioxidant, astringent, and antiviral. The statement is FALSE.
What are tannins?Tannins are natural organic substances found in plants. These can be found either in roots, stems, leaves, fruits, or seeds. In microscopic slides, they can be seen as dark spots.
Tannins belong to the polyphenol molecules, which are antioxidants and help to preserve tissues, and to avoid fast cell aging.
Tannins' structure varies widely between different plant species and within the same species. Their concentration and structure depend on different factors, like genetics, environmental conditions, and maturity stage.
Tannins have several properties besides antioxidants, like astringent and antiviral, which is why they are used in the food and drink industry.
It is well-known that tannin consumption produces several benefic effects, but recent studies have demonstrated that they might have some negative effects on the organisms.
The exposed statement is false.
Organic matter that enters waterways such as rivers is referred to as tannin ⇒ FALSE
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what advantage might a segmented worm have over a non-segmented worm (e.g. ascaris) have in terms of movement?
Round worms lack a complete circulatory system, whereas segmented worms do. The circulatory system of a segmented worm includes blood, the heart, the capillary system, and hemoglobin.
Flatworms have a ribbon-like body with no cavity. Roundworms are worms with a body cavity but no segments. Segmented worms have a body cavity as well as segmented bodies.
The Annelida consist of segmented worms. They lack legs and a hard skeleton. Unlike mollusks, the bodies of annelids are divided into many small segments, similar to rings joined together.
The earthworm can move more easily if it is segmented. Setae are muscles and bristles found in each segment or section. When moving through soil, the bristles or setae help anchor and control the worm. The bristles secure a section of the worm to the ground while the rest of the body protrudes forward.
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Which protein helps partition the cell at the midline into two new daughter cells in prokaryotes?.
The protein helps partition the cell at the midline into two new daughter cells in prokaryotes would be FtsZ protein.
To attract all other cell division proteins to the site of division, the FtsZ filaments are necessary. These proteins work in concert to direct the inward expansion of the cell wall and membrane, resulting in the development of a septum that splits the cell in two. The FtsZ protein, which self-assembles into a membrane-associated ring structure early in the division process, is necessary for the binary fission of several prokaryotes as well as some eukaryotic organelles.
The component of the microtubule cytoskeleton of eukaryotes, tubulin, is homologous to FtsZ. Where the constriction occurs, it creates a ring. Assembling DNA into the plasma membrane involves it.
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(b) (i)
Write a number, 2, 5, 6 or 7, in each of the three boxes to answer this
question.
Which chamber of the heart:
pumps oxygenated blood to the head and body
receives deoxygenated blood from the head and body
receives oxygenated blood from the lungs?
Left ventricle (LV) of the heart pumps oxygenated blood to the head and body and right atrium (RA) receives deoxygenated blood from the head and body and left atrium (LA) receives oxygenated blood from the lungs.
To obtain oxygen, the circulatory system (cardiovascular system) pumps blood from the heart to the lungs. The heart then sends oxygenated blood to the rest of the body via arteries. The veins return oxygen-depleted blood to the heart to restart the circulation process.
Arteries transport blood away from the heart, while veins transport blood back to the heart. The circulatory system transports oxygen, nutrients, and hormones to cells while also removing waste products such as carbon dioxide.
The heart is divided into four chambers: two upper chambers known as the left and right atriums, and two lower chambers known as the left and right ventricles. It also has four valves: the tricuspid, pulmonary, mitral, and aortic.
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