Answer:
Most plants are auto trophic able to use sunlight as their primary source of energy,in a process called photosynthesis.This process enables them to turn carbon dioxide from the air into food,The carbon and oxygen which they need in order to build up their bodies ultimately comes from this carbon dioxide.
All animals are heterotrophs, which means that they cannot make their own food as plants do. Rather, animals must obtain the energy, carbon, hydrogen, oxygen, nitrogen, and minerals they need by consuming other living things. Animals are also animate, which means that they are capable of movement.
Use the information to answer the following question.
1. tRNA brings the correct amino acid specified by the mRNA codon
2. DNA is used as a template to create mRNA, which leaves the nucleus
3. Amino acids are bonded together to make a polypeptide (protein)
4. mRNA molecule binds to a ribosome
5. The ribosome releases both the mRNA molecule and the polypeptide (protein)
Which of the following demonstrates the correct sequence of events that occurs during protein synthesis?
A. 2, 4, 1, 3, 5
B .2, 4, 3, 5, 1
C. 1, 2, 3, 4, 5
D. 4, 2, 1, 5, 3
Answer:
The correct sequence of events that occurs during protein synthesis? A
Explanation:
2. DNA is used as a template to create mRNA, which leaves the nucleus
4. mRNA molecule binds to a ribosome
1. tRNA brings the correct amino acid specified by the mRNA codon
3. Amino acids are bonded together to make a polypeptide (protein)
5. The ribosome releases both the mRNA molecule and the polypeptide (protein)
During protein synthesis, all the machinery for synthesis occurs in a sequential manner and the first need is a DNA template, so the correct option is a.
What events occur during protein synthesis?Protein synthesis occurs in the ribosomal machinery and the process is called translation and starts after transcription.
DNA acts as a template for transcription and makes mRNA which translates into protein. mRNA act as a messenger for protein synthesis, this mRNA converts into protein with the help of ribosomal machinery.
In the process tRNA act as an adapter molecule adding an amino acid to the protein chain according to the codon on mRNA. In the last step protein and mRNA are released by the ribosome.
Therefore protein synthesis starts with DNA, hence option a is correct.
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How are the amounts of carbon dioxide and oxygen inhaled by lungs different from the amounts exhaled? How do cellular respiration and the law of conservation of mass relate to this?
I NEED HELP!!
Answer:
1. Gas exchange takes place by diffusion in the alveoli within the lungs. As a result the composition of inhaled and exhaled air is different.
...
Inhaled and exhaled air.
Gas % in inhaled air % in exhaled air
Oxygen 21 16
Carbon dioxide 0.04 4
Nitrogen 79 79
NB These figures are approximate.
2. The amount of carbon-dioxide atoms released by respiration are exactly equal to the atoms of these materials contained in the oxygen and carbon converted. In this way respiration has conserved the mass or material and in this way followed the law of conservation of mass.
Explanation:
What is Cellular Respiration?
Cellular Respiration is the process in which the cells of living things break down the organic compound glucose with oxygen to produce carbon dioxide and water. The overall chemical equation for cellular respiration is:
C6H12O6 + 6O2 → 6CO2 + 6H2O + energy (stored in ATP)
Cellular respiration takes place in the cells of all organisms. It occurs in autotrophs such as plants as well as heterotrophs such as animals.
Q: How is cellular respiration related to breathing?
A: Breathing consists of inhaling and exhaling, and its purpose is to move gases into and out of the body. Oxygen needed for cellular respiration is brought into the body with each inhalation. Carbon dioxide and water vapor produced by cellular respiration are released from the body with each exhalation.
Energy Changes in Cellular Respiration
The reactions of cellular respiration are catabolic reactions. In catabolic reactions, bonds are broken in larger molecules and energy is released. In cellular respiration, bonds are broken in glucose, and this releases the chemical energy that was stored in the glucose bonds. Some of this energy is converted to heat. The rest of the energy is used to form many small molecules of a compound called adenosine triphosphate, or ATP. ATP molecules contain just the right amount of stored chemical energy to power biochemical reactions inside cells.
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in a typical animal, mitosis produces _________, while meiosis produces____________.
In a typical animal, mitosis produces two identical daughter cells, while meiosis produces four unique daughter cells.
Meiosis is a type of cell division that involves the parent chromosome being halved and then divided again to form four unique daughter cells which have only one copy of chromosome from the parent.
This process occurs in sex cells such as the sperm and egg cells.
Mitosis is also a type of cell division but occurs with the parent cells to form two identical daughter cells.
This type of cell division have produces the same number of chromosomes the parents have and occurs in cells of the body which undergoes growth or during replacement of worn-out tissues.
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i think its its either C or D but i don't know correct me if I'm wrong.
A swimmer dives underwater and needs to swim a long distance while holding her breath. This prevents her body from getting oxygen.
What is most likely to occur in her cells so that glycolysis can continue to produce ATP?
a) cellular respiration
b) alcohol synthesis
c) lactic acid fermentation
d) alcohol fermentation
Answer:
C is the correct option.
Explanation:
Cells in the body continue to produce ATP in absence of oxygen.
Lactic acid fermentation is most likely to occur in the swimmer's cells so that the process of glycolysis can continue to produce ATP. Thus, the correct option is C.
What is Lactic acid fermentation?
Lactic acid fermentation is a metabolic process in which glucose or other six-carbon sugars are converted into cellular energy (ATP) and the metabolite lactic acid. It is an anaerobic fermentation reaction which occurs in some bacteria and animal cells, such as muscle cells and in absence of oxygen molecule.
Lactic acid fermentation happens in the skeletal muscles. In this process, pyruvate is converted to lactic acid by the lactate dehydrogenase enzyme when oxygen is inadequate. Fatigue is brought on by the formation of lactic acid which buildup in the muscles.
Therefore, the correct option is C.
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where do daughter cells come from
Explanation:
Daughter cells are cells that result from the division of a single parent cell. They are produced by the division processes of mitosis and meiosis. Cell division is the reproductive mechanism whereby living organisms grow, develop, and produce offspring.
What is an argument in favor of using embryonic stem cells over adult stem cells?
A. Embryonic stem cells can differentiate into many more types of cells.
B. Embryonic stem cells are never really living.
C. Adult stem cells cannot be cultured.
D. Adult stem cells reproduce much faster than embryonic stem cells.
Answer:A
Explanation:
The ES cells is pluripotent, and the adult stem cell is unipotent.
Which of the following describe ways septic tanks potentially contaminate drinking water?
I. Using septic tanks in rural areas
II. Rising sea levels near coastline septic tanks
III. Leaks from septic tanks into groundwater
I and II
II and III
I and III
I, II, and III
Answer:
lll and ll
Explanation:
Answer:
| and ||
Explanation:
during which checkpoint would damaged or improperly replicated dna halt progression through the cell cycle?
Answer:
G2/Growth 2 phase
Answer:
When a cell's DNA is damaged, a sensor protein activates p53, which halts the cell cycle at the G 1start subscript, 1, end subscript checkpoint by triggering production of a cell-cycle inhibitor. This pause buys time for DNA repair, which also depends on p53, whose second job is to activate DNA repair enzymes.
A cooler area appearing from time to time on the sun's surface, appearing dark by contrast with its surroundings.
Answer:
Are you talking about a sunspot?
Explanation:
6. The anterior muscles and tendons of the forearm do what action?
Answer:
The main action of pronator teres is pronation of the forearm at the proximal radioulnar joint, while it also contributes to the flexion of the forearm at the elbow joint. Start with the anatomy of anterior forearm muscles by exploring our videos, quizzes, labeled diagrams and articles.
Where are the tube like structures that connect fungi cells?
Answer:
What are Hyphae
Explanation:
Hyphae are long tubular structures resembling garden hoses. ... Hyphae perform a variety of functions in fungi. They contain the cytoplasm or cell sap, including the nuclei containing genetic material. Hyphae absorb nutrients from the environment and transport them to other parts of the thallus (fungus body).
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Miss Hawaii
What was the Court’s decision in United States v. Nixon (1974) and how did the decision uphold the idea that even the President of the United States is not above the nation’s laws?
Answer:
The Supreme Court decided that the President was required to turn over tape recordings and other materials that had been subpoenaed by special prosecutor Leon Jaworski.
In trying to withhold some materials related to the Watergate investigation, Nixon's lawyer had argued that the President of the United States "is not subject to the processes of any court in the land except the court of impeachment." The Supreme Court disagreed, in unanimous fashion. They held that the President could not use executive privilege as an excuse for hiding wrongdoing or avoiding prosecution. In an interview some years after his resignation, Nixon still held to his view, claiming that when the President does something, "that means that it is not illegal." He felt that being in the position of President put him above the law. But the Supreme Court had firmly disagreed. They rejected the idea of "absolute, unqualified Presidential privilege of immunity from judicial process under all circumstances." Executive privilege can only protect matters of military or diplomatic confidentiality
If a cell crossed over one time during Prophase I of Meiosis, how
many genetically distinct gametes would be produced?
Answer:
If crossing over doesn’t occur, then 2 out of the 4 daughter cells would be identical.
We have 46 chromosomes and are diploid meaning we got 1 set (23 chromosomes) from our mom and 1 set (23 chromosomes) from our dad.
In prophase 1, homologous chromosomes associate (chromosome #1 from dad and chromosome #1 from mom. They both code for the same things, but they are NOT identical)
Let’s compare mitosis to meiosis
On the left, see how in mitosis all chromosomes (even homologous) line up in single file (imagine all 46 lining up individually). When anaphase splits the sister chromatids (which are identical) in mitosis, each daughter cell gets the exact same genetic info.
(they get both homologous chromosomes: 1 from dad (yellow)and 1 from mom (purple) resulting in a full diploid set)
On the right in meiosis, see how the homologous chromosomes associate and will split? Chromosome #1 from mom (purple) is going to the left daughter cell while chromosome #1 from dad (yellow) is going to the right daughter cell. This means the two daughter cells will only have 1 set for chromosome #1 (either moms or dads but NOT both) and become haploid (1 set of 23 chromosomes)
Again in mitosis, all 46 lined up individually, but in meiosis the 23 from mom and 23 from dad first associate and each orient to decide which daughter cell gets the dads chromosome or the moms chromosome. They assort independently meaning just because dads chromosome #1 went to the left DOESN’T mean that dads chromosome #2 or #3 will go to the left. This gives a unique pattern of 23 chromosomes for the 2 daughter cells of meiosis 1 (a various mixture of moms and dads, but it is possible to result in a daughter cell with just moms and just dads set, though this would be a very small probability like 1 in 2^23 )
So each daughter cell of meiosis 1 is a haploid set (only 1 set instead of 2) and the opposite of the other (since 1 has fathers while the other has mothers for the same chromosome)
Meiosis 2 is just like mitosis. Here the sister chromatids separate producing 2 identical daughter cells
(identical if crossing over doesn’t occur. Crossing over only occurs on adjacent homologous chromatids)
If crossing over doesn’t occur then both sister chromatids are identical so that 2 out of 4 daughter cells will be exactly identical haploid sets. The other 2 are identical to each other as well.
Explanation:
Answer:
please give me brainlist and follow
Explanation:
Mitosis creates two identical daughter cells that each contain the same number of chromosomes as their parent cell. In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell.
sorry .it's half answer
Someone please help me with this question
the appearance changes but the identity does not
how do potassium channels select the ion that can travel through the channel? group of answer choices membrane-spanning subunits concentration pore loop voltage
Answer: Potassium channels allow K+ ions to easily diffuse through their pores while effectively preventing smaller Na+ ions from permeation. ... This selection process occurs at the narrow selectivity filter that contains structurally identified K+ binding-sites
Explanation:
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Which muscle looks like a saw blade along the rib cage?
Answer: Serratus anterior muscle.
Explanation:
heparin is a naturally occuring anticoagulant produced by
Heparin is a naturally occurring glycosaminoglycan produced in the body by basophils and mast cells
how is carbon dioxide produced in a cenent plant
Lesson 3.01 (Page 1) talks about the different kids of ecosystem
succession.
If primary succession occurred would turtles be able to nest there?
What about secondary succession? (hint: what is the difference
between the 2?)
Answer:
In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.
Explanation:
Hope this helps
What is the biggest bird in the world?
Answer:
the biggest bird in the world is the Common ostrich
Explanation:
Brainliest ?
what happens when layers of rock with different densities collide?
Look at structure A Use the drop downs to answer the questions about this structure What is the name of this part of the flower What is the function of this part of the fower? A
Answer:
What is the name of this part of the flower?
✔ sepal
What is the function of this part of the flower?
✔ to enclose the flower bud
Answer:the person above me is right.
Explanation:
in an otherwise normal cell, what happens if one mistake is made during dna replication?
Answer:
Most mistakes are corrected, and if they are not, they may result in a mutation, defined as a permanent change in the DNA sequence. Mutations can be of many types, such as substitution, deletion, insertion, and trinucleotide repeat expansions. Mutations in repair genes may lead to serious consequences such as cancer.
Explanation:
which is true of the anterior horns of the spinal cord?
Answer:
They house cell bodies of somatic motor neurons.
Explanation:
each anterior root and corresponding posterior root unite within the intervertebral foramen to become a spinal nerve
how does one chromatid compare to its sister chromatid?
Answer:
One chromatid compares to its sister chromatid because when a chromatid is replicated, a sister chromatid is formed. The sister chromatid will be a genetically identical copy to the chromatid because the cell being replicated will also be genetically identical.
double-stranded dna looks like a ladder that has been twisted into a helix, or spiral. the side supports of the ladder are:
Most of the reactions by which energy from carbohydrates is released for use by the cell take place within the?
Answer:
Explanation:
The cellular process of releasing energy from food through a series of enzyme-controlled reactions is called respiration . Some of the energy released is used to produce ATP. Some of the energy released is lost as heat.
The release of energy from carbohydrates takes place within the
mitochondria.
The mitochondria is an organelle found within cells and it is regarded as
the power house of the cell. This is because energy is generated in it which
gives the cells power to perform its daily activities.
Energy generated from carbohydrate is usually in the form of ATP and it
involves series of reactions such as glycolysis, kreb cycle etc to ensure
adequate energy yield.
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If predators A and B prey upon the same species and predator A is eliminated, the population of predator B will likely __________.
a.
be eliminated
b.
increase
c.
decrease
d.
remain the same
Please select the best answer from the choices provided
Answer:
b
Explanation:
since predator seems to have the upper hand the predator a will most likey not be able to have any prey causing the preadotors b to inrease
Answer:
It's B
Explanation:
the thin strand of pia mater that helps to anchor the spinal cord to the coccyx is the
Answer:
filum terminale
The filum terminale is a thin strand of pia mater that helps anchor the conus medullaris to the coccyx
If I don't give the Italians my third crowbar, will my pasta privileges be reviewed by an all knowing ferret?
Answer:
no
Explanation:
Answer:
yes
Explanation:
the Italians will be furious!! You will have no pasta and the ferret will scratch your face. PLEASE GIVE THEM YOUR CROWBAR! I BEG YOU! YOU DON'T WANT TO SEE THE ITALIANS ANGRY