When cells in the artery take up LDL cholesterol (bad cholesterol) in an uncontrolled fashion, they become foam cells.
What is LDL cholesterol?It is often called as the bad cholesterol because it collects in the walls of our blood vessels, raising the chances of health problems like a heart attack or stroke. Low-density lipoprotein is a tiny blob made up of an outer rim of lipoprotein with a cholesterol center.
What are foam cells?These are formed through lipid accumulation that exceeds the homeostatic capacity of macrophages triggers lipid droplet formation, which results in the foamy appearance of these macrophages.
The formation of foam cells occurs when macrophages engulf an excess of many types of LDL, including oxidized LDL (OxLDL) and minimally modified LDL (mmLDL), which result in the death of the macrophages once they become oversaturated with LDLs.
Mostly smooth muscle cells (SMCs) are the abundant cells in human atherosclerotic lesions and are suggested to contribute at least 50% of atheroma foam cells.
Hence with the accumulation of LDL cholesterol the cells of the artery wall divide in an uncontrollable fashion, they become foam cells
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Which terms best describe the class of questions that insel and young were addressing when they studied the effect of antidiuretic hormone on monogamous voles by experimentally increasing the number of receptors in the brain?.
When insel and young investigated the impact of aldosterone on monogamous voles by artificially increasing numberbrain, they were addressing a class of topics that can be described as mechanistic.
What is the mechanism of mechanistic biology?In the study of biology, a mechanism is a collection of components and actions that are causally linked and produce one or more effects. Scientists may be able to explain the event by outlining the potential causes.
What is a mechanistic study, exactly?Understanding biological, metabolic, and physicochemical interaction at the molecular level is the aim of MMB. A partnership between BCMP and specialists in cell biology resulted in the creation of MMB, a thriving, interdisciplinary community.
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Which statement best describes enzymes?
A) slow down the rate of breathing
B) they are the building blocks of polymers
C) they speed up the conduction of impulses along a nerve cell
D) they influence the rate of chemical reactions
Answer:
D) they influence the rate of chemical reactions
Organic material derived from living organisms, including plants and animals, is called
organic fuel.
biomass.
herbage.
fossil fuel.
Answer:
Biomass is renewable organic material that comes from plants and animals.
Biomass is a right answer.
A ______ is synthesized from cholesterol and can diffuse across the plasma membrane.
A steroid hormone is synthesized from cholesterol and can diffuse across the plasma membrane.
Steroid hormone belongs to the class of chemical compounds called steroids. The function of steroid hormones is to help control metabolism, inflammation, immune functions, salt and water balance, development of sexual characteristics, and the ability to withstand injury and illness.
Cholesterol is the fat substance synthesized by the liver. It is found dissolved in the blood. It is also an important component of the plasma membrane. Some amount of cholesterol is good for body to make essential materials for the body. However excess of cholesterol can cause heart diseases.
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Camillia Is Iron deficient. Which of the following actions should she take to enhance her body's Iron absorption? Check all that apply. Check All That Apply! A. Consuming vitamin C-rich foods or supplements along with iron-containing plant foods B. Eating heme and nonheme iron foods together C. Eating high-fiber foods that are rich sources of phytic and oxalic acids D. Drinking tea with meals and snacks
Combining iron-containing plant meals with vitamin C-rich foods or supplements. Eating heme and nonheme iron foods. This will help her to enhance her body's iron absorption.
What do you mean by iron deficiency?A lack of mineral iron in your body is known as an iron deficit. Hemoglobin is a protein found in red blood cells that your body must produce in order for them to carry oxygen via your blood vessels.
Your tissues and muscles won't receive enough oxygen to function properly if your body doesn't have enough hemoglobin and this leads to the development of anaemia.
Iron deficiency anemia is the most prevalent type of anemia worldwide, despite there being other types as well. The severity of anemia, the rate at which it manifests, your age, and your present health status all influence the signs and symptoms of iron deficiency.
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______ synthesis begins at a site within a chromosome called the origin of replication.
DNA synthesis begins at a site within a chromosome called the origin of replication.
The origination of replication (ori) as well as all of its regulatory components make up the replicon. The ori would be where DNA replication starts, allowing plasmids to replicate themselves in order to live inside cells.
DNA double helix unwinding occurs at specified locations, known as origins, whereby DNA replication begins. The production of a primer, a brief section of RNA that serves as the beginning point for such synthesis of fresh DNA, follows.
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when an exponentially growing population has a growth rate of 0.2 organisms/individual/yr, and the population is 1000 organisms, what is the slope of the population growth curve? when the population is 3000 organisms, what is the slope of the line?
When the population is 3000 organisms, the slope will be an inclined graph and when the population is 1000 organisms the graph will be a parabola in case of exponential growth.
Exponential growth is the growth when organisms or microorganisms grow in a constant number in interval of time. Exponential growth is also known as log phase growth.
The cells during exponential growth phase are at their healthiest state and are thus used for biochemical and physiological studies. During exponential growth, the cells divided at their maximal rate given the genetic potential, and the environmental conditions.
Mathematically, exponential growth can be explained as the population density is equal to the initial growth added with time of the generation. In the given case, when the growth rate is 0.2 organisms per year. Then the graph obtained will be a parabola when population is 1000 and the graph will incline when the population is 3000. Both of it will be a logarithmic growth.
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Explain how cold symptoms show that the body is using both lines of nonspecific defenses to fight pathogens.
The innate immune system provides this kind of nonspecific protection through a number of defense mechanisms, which include physical barriers such as the skin, chemical barriers such as antimicrobial proteins that harm or destroy invaders, and cells that attack foreign cells and body cells harbouring infectious agents.
What do you mean by pathogens?A pathogen in the oldest and broadest sense, is any organism or agent that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ.
Moreover, pathogens cause illness to their hosts through a variety of ways. The most obvious means is through direct damage of tissues or cells during replication, generally through the production of toxins, which allows the pathogen to reach new tissues or exit the cells inside which it replicated.
Therefore, pathogenic organisms are of five main types: viruses, bacteria, fungi, protozoa, and worms.
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Which factor is a density-dependent limiting factor on the florida manatee population?.
Seagrass is a density-dependent limiting factor for the Florida manatee population.
Population density is correlated with density-dependent factors, which become more restrictive as density rises. The accessibility of food, water, and space, as well as the presence of diseases or predators, are examples of density-dependent factors.
Large aquatic creatures called Florida manatees are native to the state of Florida. Manatees can grow to be over 13 feet long and weigh more than 3,500 pounds, but they are normally 9 to 10 feet long from snout to tail and weigh about 1,000 pounds. Typically, manatees consume seagrass. Therefore, the availability of seagrass may be a limiting issue that worsens as the number of manatees rises.
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autocrine stimulation is the ability of cancer cells to do what?
Answer: produce and to respond to their own growth factors
Explanation:
mendel found that yellow pea pod color (g) was dominant to green pea pod color (g). for each of the crosses below, what percentage of offspring are expected to be yellow?
GG x GG = 100% because both parents have dominant homozygous allele G.
Gg x Gg= 75% because both the parent are heterozygous. The result of yellow offspring is GG:Gg:Gg:gg.
gg x gg = 0% because both the parent are homozygous recessive allele g after cross only green offspring would be seen.
Why is Mendel credited with founding genetics?Through his research on pea plants, Gregor Mendel discovered the fundamental ideas of inheritance. He came to the conclusion that each pair of genes is inherited separately from each parent.
The first rule of inheritance is the dominance principle. Only the dominant traits in the phenotype will be passed down to hybrid offspring, according to the law. Recessive traits are those alleles that prevent the occurrence of a trait, whereas dominant traits are those alleles that cause the occurrence of a trait.
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What part of the cell cycle has been disrupted to allow for the formation of cancer cells?.
The formation of cancer cells occurs in the interphase cell cycle which is disrupted, precisely when DNA synthesis is in the S phase.
How does the cell cycle affect cancer?In many cancer cells, the number of chromosomes changes so that there are either too many or too few chromosomes in the cell. These cells are said to be aneuploid. Errors can occur during DNA replication resulting in mutations and possible development of cancer.
Cancer is the result of uncontrolled cell division caused by damage to the mechanism that regulates the cell cycle. Loss of control begins with a change in the DNA sequence of a gene that codes for one of the regulatory molecules. Incorrect instructions cause the protein to not work as it should.
Cells that progress through an uncontrolled cell cycle may eventually form a malignant tumor, in which masses of cells grow and divide uncontrollably, then develop the ability to spread and migrate throughout the body.
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a neuron and a white blood cell have very different functions. for example, a neuron can receive and respond to electrical signals, while a white blood cell defends the body against infection. this is because group of answer choices all of the proteins found in a neuron are completely different from the proteins found in a white blood cell. the neuron and the white blood cell within an individual have the same genome. the neuron expresses some mrnas that the white blood cell does not. neurons and white blood cells are differentiated cells and thus no longer need to transcribe and translate genes.
The blood cells and neurons are wholly separate populations, and the two cell types are not interdependent in any way.
The Correct Answer is : the neuron expresses some mRNAs that the white blood cell does not.
Do white blood cells have RNA?Protein can be produced by white cells that have a nucleus and can create ribonucleic acid (RNA). White blood cells are highly differentiated for their particular functions, so they do not divide into new cells in the bloodstream (mitosis), yet some still have this ability.Leukocytes, thrombocytes, and erythrocytes make up human blood. When determining the amount of nucleic acid in human blood, leukocytes—the only cells with a nucleus—are crucial. While erythrocytes and thrombocytes do contain a small quantity of RNA, they lack a cell nucleus.Here, we report the presence of standard bands for the eukaryotic RNAs 28S and 18S in human RBCs. According to microarray research, erythrocytic RNA contains transcripts from 1019 distinct genes.To Learn more About blood cells and neurons refer to:
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What is mitosis easy definition?
A eukaryotic cell's nucleus divides in two during the process of mitosis, which is followed by the division of the parent cell into two daughter cells.
What are the feature of Mitosis?Two daughter cells are created from the parent cell during each round of cell division. As a result of the identical chromosome number in the parent and daughter cells, the cell is sometimes referred to as equational cell division. In plants, the process of mitosis promotes the growth of the plant's vegetative parts, such as the root and stem tips. In this process, segregation and combination do not take place.
An organism's development is aided by mitosis. Asexual reproduction occurs during the process of mitosis in single-celled organisms.
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Using a pedigree autosomal recessive traits, such a cystic fibrosis, are easy to follow through the generations. Explain the inheritance of cystic fibrosis in two children of the third generation in
Cystic fibrosis in the two children of the third generation is inherited in an autosomal recessive inheritance pattern.
Autosomal refers to the 46 chromosomes are present. Among them, 44 are the non-sex chromosome & 2 are the sex chromosomes. Chromosomes are the untangled phase of DNA before cell division.
The 22 pairs of chromosomes don’t play a role in determining the sex of the human body. They are responsible for the structure of the body. They provide some unique patterns to the body.
On the other hand, the sex chromosomes are responsible for determining the sex of a human. There are two types of sex chromosomes. One is the X chromosome & another is the Y chromosome.
The chromosomes are referred to as genes when they are about to get divided. The genes can be either dominant or recessive on one generation. Therefore, in the given condition, it is referred to as autosomal recessive inheritance pattern.
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colony-stimulating factors (csf) are administered to produce which therapeutic effect?
Colony-stimulating factor (CSF) is effective treatment of cyclic neutropenia. Rare blood disorder which is caused by low levels of neutrophils.
Neutrophils are vital to fight the infection by surrounding and destroying the bacteria that enter the body.
CyN is rare. There are an estimated 1-2 cases per 1 million people worldwide
Causes –
1. Mutations
2. Low levels of neutrophils
3. Cell do not perform correctly
The colony-stimulating factors (CSFs) are hematopoietic growth factors (HGFs) involved in regulation of the formation of nonlymphoid blood cells.
Colony-stimulating factors) are secreted glycoproteins that bind to the receptor proteins on the surfaces of hematopoietic stem cells this activates the intracellular signaling pathways causing the cells to proliferate and differentiate into a specific kind of blood cell which is white blood cell
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Ribosomal RNA is also known as rRNA
and is located on the ribosome.
Which of these is TRUE about rRNA?
A. It helps mRNA move along the ribosome.
B. It creates extra cytoplasm.
C. It unzips DNA strands.
D. It takes DNA outside the nucleus.
The ribosome is where ribosomal RNA, commonly known as rRNA, is found. Strands of DNA are unzipped.
Where can one locate ribosomal RNA?80% of the total RNA in a cell is made up of rRNAs, which are located in ribosomes. The 50S subunit, which is a substantial component of ribosomes, and the 30S subunit, which is a smaller component, are each made up of unique rRNA molecules.
What does ribosomal RNA gene mean?an RNA ribosome All living things need ribosomal ribonucleic acid (rRNA), which is the RNA component of the ribosome and crucial for protein synthesis. About 60% of the ribosome's mass is made up of rRNA, and the remaining 40% is made up of protein.
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Answer: It helps mRNA move along the ribosome
Explanation:
if the glomerular blood pressure is 65 mm hg, the capsular hydrostatic pressure is 10 mm hg, and the colloidal osmotic pressure in the glomerulus approximates 20 mm hg, what is the effective filtration pressure?
If the glomerular blood pressure is 65 mm hg, the capsular hydrostatic strain is 10 mm hg, and the colloidal osmotic stress within the glomerulus approximates 20 mm hg 25 mmHg 65-(12+28)=25 is the powerful filtration strain.
An increase in glomerular capillary hydrostatic pressure might increase the filtration fee might an increase or lower in stress in Bowman's tablet increases the filtration fee decrease in pressure in Bowman's pill could grow filtration charge.
Increased Bowman's capsule hydrostatic strain will lower GFR, at the same time as reduced Bowman's tablet hydrostatic stress will increase GFR. An example of that is a ureter obstruction to the flow of urine that gradually reasons a fluid buildup inside the nephrons.
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recessive x-linked traits are more likely to be expressed in a male fruit fly than a female fruit fly because group of answer choices males are haploid. the male chromosome is more fragile than the female chromosome. the male chromosome is more susceptible to mutations. the male's sry gene doubles the chances that sex-linked genes are expressed. the male's phenotype results entirely from his single x-linked gene.
Answer:
the male's phenotype results entirely from his single X-linked gene
Explanation:
During what process are parental dna strands used as templates for the synthesis of new dna strands?.
Answer:replication
Explanation:
Differentiate between spores and gametes. (at least in 4 points each)
Answer:
Spores are used in asexual AND sexual reproduction Gametes are used in sexual reproduction only
Spores are produced by bacteria, fungi, algae, and plants.
Gametes are formed through meiosis (reduction division)
Animals don't produce spores
Animals only produce gametes
spores are capable of surviving in harsh environments
gametes are not adapted for harsh environments
how do your earlier thoughts about OUMUAMUA compare to what you have learned?
My earlier thoughts about OUMUAMUA compare to the thing that I have learned is very different. By learning, i was able to know that it is seen as a form of messenger, all the while, i was thinking it was diabolic.
What set Oumuamua apart?The most convincing justification to date was provided this week by two astronomers from Arizona State University, Alan Jackson and Steven Desch: Oumuamua was a fragment of a distant planet that belonged to a different star. It was once broken off by an asteroid collision and sent hurtling into space.
Note that In 2017, astronomers discovered the enigmatic object known as 1I/'Oumuamua, which is Hawaiian for the the term "scout" or we can say that it is "messenger." ' The speed and route of Oumuamua indicated that it was created outside of the solar system, making it the first interstellar object ever discovered.
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When a substance is adapted to meat, amino acids are produced.
What is this substance?
The atomic number is the number of
Question 13 options:
protons
neutrons
electrons
protons and neutrons
The answer is protons.
Protons = atomic #
Deborah Tannen analyzed the talk of men and women and found that, compared to women, men more commonly engage in ______ talk, in order to _____.
According to Deborah Tannen's analysis of the conversation between men and women, males are more likely than women to engage in give-and-take conversation in order to speak and listen.
What is the article's central concept, Tannen?Men do bond, according to Tannen's research, but it takes negotiating in a more competitive environment where they feel like they are being put down if they are listened to for too long. Men also share problems with friends in order to get advice from them on how to solve them or to get reassurance that the issue is unimportant.
What is Tannen's argument concerning gender communication?According to Tannen, a lot of the communication issues that occur between men and women are caused by the different conversational norms and expectations that apply to each sex.
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“The study of cells had its birth with the invention of microscope, but it became a product of the 19th century.” What does this mean?
The invention of microscope led the scientists to look at the tiniest of the things that human eyes were not capable of. A Dutch glassmaker named Zacharias Janssen, invented the microscope which turned out to be the most important invention in the scientific history.
What is a Cell?
In 1665, It was Robert Hooke who came up with the name suggestion called CELL.The word Cell is derived from the Latin word Cella, meaning, Small Room/Chamber/Compound.Cells are known as the smallest unit of Life, that makes up all living organisms and the body tissues.Cells basic function is to provide a structure to the body by combining tissues and extracting nutrients from food and then converting it into energy form to carry out all the basic functions in a living organism.How did microscope became a product of the 19th century?
Even though microscope was invented in the 16th century, but It came in action more in the 19th century.Scientists were amazed by the fact that now the tiniest of tissues can be seen that no ordinary human eyes had ever been able to see before. Major improvements were initiated to the microscopes in the 19th century by the scientists .For example, Achromatic Lenses were implemented, in which the colors can be seen exactly as they are without dispersing it into its diverse constituent colors.And that is how in the 19th century, the development of cell theory was introduced.To learn more about the Microscopes, check this link:
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Explain the role of water potential in the movement of water from soil through the plant and into the air.
Water potential, which determines the potential energy present in waters and controls how water flows through plants, For photosynthesis to occur, plant use water uptake to move water to the leaves.
What is water potential?The energy needed to move an infinitesimally small amount of water first from sample to a comparative pool or pure free water is known as the water potential. Controlling the blood's water potential is referred to as osmoregulation. The blood is difficult because it contains so many ions, proteins, and other things.
Why does water potential exist?Pressure, gravity, and zeta potentials are a few variables that have an impact on water potential. A system's maximum potential energy grows with increasing pressure potential (p); a system's maximum possible energy falls with decreasing p. Cells constantly use up different substances, some more frequently than others depending on the time of day, night, sweat, tears, etc.
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DNA Sequence CCT CTT TAC ACA CGG AGG GTA CGC TAT TCT ATG ATT ACA CGG TTG CGA TCC ATA ATC
Create an mRNA sequence from the above DNA sequence
Answer:
GGA-GAA-AUG-UGU- GCC-UCC-CAU-GCG-AUA-AGA-UAA-UGU-GCC-AAC-AAC-GCU-AGG-UAU-UAG
that was long
Explanation:
Anyways, we're going to use transcription to turn these DNA codons into mRNA codons so they can be turned into amino acids.
Transcription: - Converting DNA sequences into mRNA sequences.
PAIRS
A(Adenine) goes with T(Thymine)
C(Cytosine) goes with G(Guanine)
another way to remember this is
Apples Under Trees
Cars in Garages
Apple goes with Trees
Cars goes with Garages
But why did I uppercase the U?
In transcription, instead of the A being with the T, it turns into U(Uracil)
THERE ARE NO T'S IN TRANSCRIPTION
Ex: ATC would be UAG
Hope that helped. If needed I can go in depth:)
The cells inside this structure contain many green organelles called fill in the blank text field 2 type text here.
The leaves' chloroplasts are the region of a plant that has the structures required to absorb carbon dioxide and sunlight.
What seven organelles are there?The nucleus, mitochondria, endoplasmic reticulum, Golgi apparatus, vesicles, and vacuoles are among the organelles found in animal cells. Despite not being protected by a membrane, ribosomes are frequently referred to as organelles in eukaryotic cells.
What is a list of cell organelles?Cell organelles in general: Cell membrane, reticulum, Golgi apparatus, cytosol, nucleus, mitochondrion, cytoplasm, lysosome, rough and smooth endoplasmic peroxisome, and the cytoskeleton are examples of general cell organelles that are present in both animal and plant cells.
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Which term matches this definition?
rigid, permeable structure that protects the cell,
helps the cell maintain shape, and prevents the
cell from bursting
A. cell wall
B. cocci
C. cell membrane
D. eukaryote