How does the TCA cycle contribute to providing acetyl coA for fatty acid synthesis?
Answers
The TCA cycle produces citrate which is exported to the cytosol where it is converted to acetyl-CoA by ATP-citrate lyase. This acetyl-CoA can then be used as a substrate for fatty acid synthesis.
The TCA cycle, also known as the Krebs cycle, is a metabolic pathway that occurs in the mitochondria of eukaryotic cells. It plays a central role in cellular respiration, generating energy by oxidizing acetyl-CoA derived from carbohydrates, fats, and proteins. One of the intermediates of the TCA cycle is citrate, which is formed from oxaloacetate and acetyl-CoA. Citrate can be exported from the mitochondria to the cytosol where it is converted to acetyl-CoA by the enzyme ATP-citrate lyase. This acetyl-CoA can then be used as a substrate for fatty acid synthesis. Fatty acids are synthesized in the cytosol by a series of enzymatic reactions that use acetyl-CoA and malonyl-CoA as substrates. The TCA cycle thus indirectly contributes to fatty acid synthesis by providing the acetyl-CoA necessary for this process.
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Related Questions
Species
Sequence of Amino
Acids in the Same Part
of the Hemoglobin
Molecules
Human
Horse
Gorilla
Chimpanzee
Zebra
Lys-Glu-His-Iso
Arg-Lys-His-Lys
Lys-Glu–His-Lys
Lys-Glu-His-Iso
Arg-Lys-His-Arg
O A Horse and Zebra are the least related.
O B. Human and Chimpanzee are the least related
O
C. Human and Zebra are more closely related than Human and Chimpanzee
D. Human and Chimpanzee are more related than any other pair
Answers
Answer:
D. Human and Chimpanzee are more related than any other pair
Explanation:
The image in this question shows a tabularized information on the amino acid sequence of hemoglobin protein in different species. This amino acid sequence can be used to deduce whether two or more species are closely related or not. The amino acid sequence of the hemoglobin of the different organisms are as follows:
- Human: Lys-Glu-His-Iso
- Horse: Arg-Lys-His-Lys
- Gorilla: Lys-Glu–His-Lys
- Chimpanzee: Lys-Glu-His-Iso
- Zebra: Arg-Lys-His-Arg
Based on the above sequences, it can be observed that the amino acid sequence of humans and chimpanzee are the same with little to no differences while other species that have similar sequences differ in one or two amino acids. This means that Human and Chimpanzee are more related than any other pair.
Some fossils were formed when animals were buried in volcanic ash,
True
False
Answers
yes, this is true!!
Answer:
its true
Explanation:
Trans-ancestry genome-wide association meta-analysis of 418 prostate cancer identifies new susceptibility loci and informs genetic risk prediction
Answers
The article titled "Trans-ancestry genome-wide association meta-analysis of 418 prostate cancer identifies new susceptibility loci and informs genetic risk prediction" presents the results of a study that analyzed the genetic factors associated with prostate cancer across different ancestral populations.
In this study, researchers performed a meta-analysis, which is a statistical technique that combines data from multiple studies, to identify new genetic markers, or loci, that may be linked to prostate cancer susceptibility. The analysis included a total of 418 prostate cancer cases.
By examining the genetic information of individuals from diverse ancestry backgrounds, the researchers aimed to uncover genetic risk factors that may be specific to certain populations or shared across different ethnicities. This approach allowed for a more comprehensive understanding of the genetic basis of prostate cancer.
The findings of this study revealed the identification of new susceptibility loci, which are regions in the genome that are associated with an increased risk of developing prostate cancer. These loci provide insights into the underlying genetic factors contributing to the disease.
Additionally, the results of this study have the potential to inform genetic risk prediction for prostate cancer. By identifying specific genetic markers associated with increased risk, researchers can develop more accurate risk prediction models. These models can help identify individuals who may benefit from early screening or targeted interventions.
In summary, the article describes a trans-ancestry genome-wide association meta-analysis that identified new susceptibility loci for prostate cancer. The findings have implications for genetic risk prediction and may contribute to our understanding of the genetic basis of this disease. This study advances our knowledge of prostate cancer genetics and has the potential to improve patient outcomes through more targeted approaches.
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What's Biological Accumulation?
Answers
Answer:
In toxicology, bioaccumulation is the process of accumulation of chemical substances in living organisms so that they reach higher concentrations than the concentrations in their environment or inExplanation:
I wait and serve youAnswer:
According to Oxford learner's dictionary:
Biological Accumulation is the accumulation within living organisms of toxic substances occurring in the environment.
Biological accumulation is the continuous buildup of foreign substances, such as pesticides or toxic chemicals, within an organism.
1. Chromosomes and genes share all of the following characteristics except that
A. They are both present in pairs in all diploid cells.
B. They both undergo segregation during meiosis.
C. Their copy numbers in the cell decrease after meiosis, and increase during fertilization. D. They are both copied during the S phase of the cell cycle.
E. They both pair up with their homologues during prophase of mitosis
Answers
Answer:
Answer: C. Their copy numbers in the cell decrease after meiosis, and increase during fertilization.
Explanation: Chromosomes and genes share all of the characteristics listed except for C. Chromosomes undergo segregation during meiosis, which results in a decrease in their copy numbers in the cell. However, genes do not undergo segregation during meiosis, so their copy numbers in the cell do not decrease after meiosis. Instead, the copy numbers of genes increase during fertilization when the two haploid cells combine to form a diploid cell.
suppose a carbon dioxide molecule leaves a respiring muscle cell in the leg and is transported in blood to the lungs. it moves through
1) heart
2) systemitic vein
3) alveolar capillaries
4) pulmonary artetry
5) capillaries near muscle cells
in what order does this carbon dioxide molecule encounter these structures?
Answers
Answer:
Explanation:
the carbon dioxide molecule encounters the structures in the following order: 5) capillaries near muscle cells, 2) systemic vein, 1) heart, 4) pulmonary artery, and 3) alveolar capillaries.
The most common form of color blindness in humans is due to an X-linked recessive allele. A man who is color blind has a 45,X (Turner syndrome) daughter who is also color blind. Did the nondisjunction that led to the 45,X child occur in the mother or the father? Explain the evidence supporting your answer.
Answers
The nondisjunction that led to the 45, X child occurs in the mother. Turner syndrome occurs in females, so the 45, X child must have received the X chromosome from the mother because the father only contributes Y chromosome to the offspring which makes them male.
Therefore, the father of the 45, X daughter with color blindness cannot have the 45, X (Turner syndrome) himself because he does not possess X chromosomes; instead, he only contributes the Y chromosome to his offspring with the X chromosome from the mother. The father will only inherit a single X chromosome and a single Y chromosome, whereas the mother will inherit two X chromosomes.
Therefore, a male parent cannot transmit Turner syndrome to their daughter. The fact that both the father and the daughter are colorblind is not significant because males have a higher likelihood of being colorblind than females and since the inheritance of the X chromosome is a result of random segregation, the daughter inherited the colorblindness gene from her mother.
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A person who has Turner syndrome (45,X) lacks one of their two X chromosomes. Therefore, Turner syndrome individuals have just one copy of each X-linked gene. The father is responsible for the X chromosome in the fertilized egg, so the father is responsible for giving the daughter a single X chromosome.
Color blindness is the inability to see colors in the usual way, and it is usually inherited as an X-linked recessive allele. A person who has Turner syndrome (45,X) lacks one of their two X chromosomes. Therefore, Turner syndrome individuals have just one copy of each X-linked gene. The father is responsible for the X chromosome in the fertilized egg, so the father is responsible for giving the daughter a single X chromosome. Since the father is color blind and the daughter is color blind, the 45,X (Turner syndrome) child got the defective X-linked recessive allele from the father, which means that the nondisjunction that led to the 45,X child occurred in the father.
Evidence: Color blindness is a genetic disorder that is inherited as an X-linked recessive allele. Since the father is color blind and the daughter is also color blind, it is reasonable to conclude that the father is the one responsible for passing the X-linked recessive allele that causes color blindness to the daughter. The 45,X child has Turner syndrome. This is a genetic disorder that occurs as a result of nondisjunction in the mother during meiosis I or II. However, since the father is color blind, he can only pass on one X chromosome, and the nondisjunction that resulted in the 45,X child must have occurred in the father.
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Examine the weather map.
A weather map of the United notes. The following are shown on the map: major cities with high and low temperatures; high and low pressure systems; types of precipitation, fronts. The arrow is pointing to an H in a circle.
What does the symbol indicated by the arrows most likely represent?
a hurricane
low pressure
high pressure
high temperatures
Answers
Answer:
The answer would be High Pressure, H on a weather map means High Pressure, a red L on a weather map means low pressure.
The symbol represented in the weather map by H, is high pressure.
Symbols of weather map
The symbols on the weather map is used to indicate temperatures and pressures of different zones.
Symbols and their meanings on the weather mapSymbol L: This symbol is used to represent low pressure zoneSymbol H: This symbol is used to represent high pressure zone.Thus, the symbol represented in the weather map by H, is high pressure.
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Which statement explains why antibiotics do not break down cell walls in plants?
Plant cells are less complex than bacterial cells, and their cell walls are made of enzymes which prevent the antibiotic from breaking down the plant cell walls.
Plant cells are prokaryotic, and their cell walls are made of lipids which prevent the antibiotics from breaking down the plant cell walls.
O Plant cells are simple cells, and their cell walls are made of carbohydrates which prevent the antibiotics from breaking down the plant cell walls.
O Plant cells are eukaryotic, and their cell walls are made of different proteins which prevent the antibiotics from breaking down the plant cell walls.
Answers
Answer:
The correct option is;
Plant cells are simple cells, and their cell walls are made of carbohydrates which prevent the antibiotics from breaking down the plant cell walls
Explanation:
Each type of organism possesses a different form of cell wall, therefore, an antibiotics, such as penicillin does have an impact on the cells of other organism, such as plant that have a cellulose cell wall which is a form of carbohydrate, while penicillin is effective in the disruption of the production of peptidoglycan molecules which strengthens a bacteria cell and protects the bacteria's cytoplasm from leaking.
Which joint moves only by a uniaxial movement around its own axis?
Answers
The joint that moves only by a uniaxial movement around its own axis is the pivot joint.
What is a pivot joint?A pivot joint is a type of synovial joint that allows for rotational movement around a single axis.
In a pivot joint, one bone has a cylindrical projection that fits into a ring or notch in another bone, allowing rotational movement around a single axis. Pivot joints are also known as rotary joints.
In this type of joint, one bone rotates around another bone's axis, allowing only one movement, such as rotation. An example of a pivot joint in the human body is the joint between the atlas and axis vertebrae in the neck, which allows us to rotate our heads.
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What is the rapid change in a membrane's potential caused by the depolarization of a neuron?
A.Action power
B.Movement potential
C.Action potential
D.Neuron power
Answers
Answer:c it’s the answer
Explanation:
C
Anna runs 5 km in 20 minutes. What is her speed in kilometers per hour?
Answers
Answer:
15 km/h
Explanation:
5 km in 20 min
5km is 5000m and 20 min is 20×60 =1200s
5000÷1200= 25÷6 m/s
To convert m/s to km/h we multiple by 18/5
25÷6×18÷5
15 km/h.
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what significant role does dna play in formation and development of an organism
Answers
Answer:
DNA contains the instructions needed for an organism to develop, survive, and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.
Explanation:
DNA contains the instructions needed for an organism to develop, survive, and reproduce.
What is DNA?
Cells' capacity to store, retrieve, and translate the genetic instructions necessary to create and maintain a live organism is essential to life.
This genetic material is transmitted from one generation of an organism to the next through the reproductive cells of the organism and from one cell to its daughter cells during cell division.
Every living cell contains these instructions as part of its genes, which are the information-containing components that define the traits of a species as a whole and of the individuals within it.
Therefore, DNA contains the instructions needed for an organism to develop, survive, and reproduce.
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Consider the following intermediate chemical equations . ch 4 (g)+2o 2 (g) co 2 (g)+2h 2 o(g)2h 2 o(g) 2h 2 o(l) which overall chemical equation is obtained by combining these intermediate equations ? ch 4 (g)+2o 2 (g) co 2 (g)+2h 2 o(l); ch 4 (g)+2o 2 (g) co 2 (g)+2h 2 o(g) o o ch 4 (g)+2o 2 (g) co 2 (g)+4h 2 o(g)+2h 2 o(l); ch 4 (g)+2o 2 (g) co 2 (g)+6h 2 o(g).
Answers
The overall chemical equation obtained by combining the given intermediate equations is: CH4(g) + 2O2(g) → CO2(g) + 2H2O(l).To obtain the overall chemical equation, you need to combine the intermediate equations by canceling out the common species.
In this case, the intermediate equations have water (H2O) as a common species.
In the first intermediate equation, 2H2O(g) is formed as a product. In the second intermediate equation, 2H2O(g) is also formed.
To combine these equations, you add the two equations together, canceling out the common species:
CH4(g) + 2O2(g) + 2H2O(g) + 2H2O(g) → CO2(g) + 2H2O(l)
Simplifying the equation, you get:
CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)
Therefore, the overall chemical equation obtained by combining these intermediate equations is:
CH4(g) + 2O2(g) → CO2(g) + 2H2O(l)
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Part B
Based on your understanding of the process of photosynthesis, what are the strengths and weaknesses of this model?
Answers
the strengths and weaknesses of the process of photosynthesis:
Strengths of the process of photosynthesis:
1. Photosynthesis is essential for the survival of all green plants and algae, as well as some bacteria. It is the primary way that plants and algae produce organic compounds and oxygen, which are used by other living organisms in ecosystems.
2. Photosynthesis helps to regulate the Earth's atmosphere and climate by removing carbon dioxide from the atmosphere and releasing oxygen.
3. Photosynthesis is an incredibly efficient process, with an overall conversion rate of around 6% to 10% of the energy from sunlight being converted into chemical energy.
4. Photosynthesis is a complex process that involves the coordination of many different biochemical reactions and regulatory mechanisms.
Weaknesses of the process of photosynthesis:
1. Photosynthesis is limited by several factors, including the availability of light, water, and nutrients.
2. Photosynthesis is a relatively slow process, with rates depending on the intensity and duration of light exposure, temperature, and other environmental factors.
3. Photosynthesis can also be affected by changes in the Earth's atmosphere, such as increasing carbon dioxide levels or ozone depletion, which can affect plant growth and ecosystem function.
4. Photosynthesis is a complex process that requires a lot of energy and resources from plants, which can limit their ability to allocate resources to other functions such as defense against predators or reproduction.
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A diet rich in ________ can help reduce ldl oxidation and thus decrease the risk of cvd and metabolic syndrome.
Answers
A diet rich in antioxidants can help reduce LDL oxidation and decrease the risk of cardiovascular disease (CVD) and metabolic syndrome.
LDL oxidation refers to the process of low-density lipoprotein (LDL) cholesterol particles becoming oxidized or damaged, which can contribute to the development of atherosclerosis and other cardiovascular conditions.
Antioxidants are substances that can neutralize harmful free radicals in the body, which are highly reactive molecules that can cause oxidative stress and damage to cells, including the oxidation of LDL cholesterol. By consuming a diet rich in antioxidants, such as fruits, vegetables, whole grains, and nuts, individuals can help counteract the harmful effects of oxidative stress and reduce the oxidation of LDL cholesterol.
Reducing LDL oxidation is important because oxidized LDL cholesterol is more likely to contribute to the formation of plaque in the arteries, leading to atherosclerosis and an increased risk of CVD. Additionally, oxidative stress and LDL oxidation are associated with the development of metabolic syndrome, which is a cluster of conditions including high blood pressure, high blood sugar, excess body fat around the waist, and abnormal cholesterol levels.
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what is a constant.here what it is
Answers
a student wanted to observe dividing cells under a microscope
the student squashed the root tip of an onion plant on a microscope slide.
describe how the student should use a light microscope to view the squashed root tip
Answers
The student can view the squashed root tip through the microscope by;
placing the slide on the microscope stage and holding it in place using the stage clips Looking through the eyepiece lens and adjusting the objective lens until a clear image is obtained.What is a microscope?A microscope is an instrument used in the laboratory to view objects that cannot be seen with the unaided eye clearly.
These objects are in the microscopic size scale level.
Microscopes usually have two lenses; the objective lens and the magnification lens.
A proper adjustment of the objective lens and the eyepiece lens enables the clear visualization of a microscopic object.
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A small cave ecosystem gets cut off from the outside world during a large landslide. After this, the cave ecosystem has no energy inputs because there is no sunlight. Over the next year, what happens to populations of organisms in the cave ecosystem?
Answers
Answer: Populations of producers and consumers die because they cannot obtain energy
Explanation: Did this quiz and got it right
The thylakoid membrane contains a protein called atp synthase. As hydrogen ions pass through the protein, adp and a phosphate group are combined to form atp. What is the direct energy source, if any, for the movement of hydrogen ions and the formation of atp? a. The energy source is the high-energy electrons that accompany the hydrogen ions. B. The energy source is the concentration difference of hydrogen ions across the membrane. C. The energy source is a set of atp molecules that gather inside the thylakoid. D. There is no energy source; the process occurs without an energy input.
Answers
The energy source is the concentration difference of hydrogen ions across the membrane.
The photochemical and electron transport reactions of oxygenic photosynthesis occur at the thylakoid membrane. The lipid composition of the thylakoid membrane is highly conserved among oxygenic photosynthetic organisms, with two galactolipids, one sulfolipid, and one phospholipid.
The primary functions of thylakoids are to trap light energy and convert it into chemical energy forms such as ATP and NADPH. Water is oxidized and oxygen is released during this process. Inside chloroplasts and cyanobacteria, thylakoids are membrane-bound compartments. They are the site of photosynthesis's light-dependent reactions. Both stages of photosynthesis involve the chloroplast. The light reactions occur in the thylakoid.
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Describe different types of mutations
Answers
Answer:
A base is inserted into one strand of the DNA
Answer:
hope this helps if helps mark me brainliest
Explanation:
There are three types of DNA Mutations: base substitutions, deletions and insertions. Single base substitutions are called point mutations, recall the point mutation Glu -----> Val which causes sickle-cell disease. Point mutations are the most common type of mutation and there are two types.
Explain the endosymbiotic theory and explain whether it is true with details.
Answers
Explanation:
The endosymbiotic theory states that some of the organelles in today's eukaryotic cells were once prokaryotic microbes. In this theory, the first eukaryotic cell was probably an amoeba-like cell that got nutrients by phagocytosis and contained a nucleus that formed when a piece of the cytoplasmic membrane pinched off around the chromosomes. Some of these amoeba-like organisms ingested prokaryotic cells that then survived within the organism and developed a symbiotic relationship. Mitochondria formed when bacteria capable of aerobic respiration were ingested; chloroplasts formed when photosynthetic bacteria were ingested. They eventually lost their cell wall and much of their DNA because they were not of benefit within the host cell. Mitochondria and chloroplasts cannot grow outside their host cell.
Evidence for this is based on the following:
Chloroplasts are the same size as prokaryotic cells, divide by binary fission, and, like bacteria, have Fts proteins at their division plane. The mitochondria are the same size as prokaryotic cells, divide by binary fission, and the mitochondria of some protists have Fts homologs at their division plane. Mitochondria and chloroplasts have their own DNA that is circular, not linear. Mitochondria and chloroplasts have their own ribosomes that have 30S and 50S subunits, not 40S and 60S. Several more primitive eukaryotic microbes, such as Giardia and Trichomonas have a nuclear membrane but no mitochondria.
A protein is a king chain of amino acids joined together
Answers
Answer:
That is correct, also amino acids are monomers (building blocks) of proteins (1 of the 4 biomolecules).
Are fingers made of diploid cells or haploid cells?
Answers
Fingers are made from diploid cells. All of the cells in our body are made from diploid cells except in the reproductive cells which are made from haploid cells.
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Response Template
This template will help you write about your perspective on the issue you chose.
My chosen issue: increasing spending on programs for those in need
Paragraph 1—Explain your perspective on the issue you chose. Write in complete sentences.
Paragraph 2—Describe a different perspective on this issue, one that differs from your own. Write in complete sentences.
Answers
I believe that there has to be increased spending on those programs meant for those in need. My take on this is below.
increasing spending on programs for those in needParagraph 1:
As a person who strongly values equality and fairness, I believe that increasing spending on programs for those in need is a crucial step towards creating a more just society. I believe that all individuals should have access to basic necessities such as food, shelter, and healthcare, regardless of their financial situation. I believe that the government has a responsibility to provide support for those who are struggling and to invest in programs that can help lift people out of poverty and provide them with opportunities to succeed. Furthermore, I believe that investing in these programs is not only the right thing to do from a moral standpoint, but it will also benefit society as a whole by reducing crime and improving public health.
Paragraph 2:
However, there are those who take a different perspective on this issue. Some argue that increasing spending on programs for those in need is not sustainable and that it creates a culture of dependence, where individuals become reliant on government support and lose the motivation to improve their own lives. They believe that programs like these do not address the root causes of poverty and can lead to an increase in government debt. They believe that the money would be better spent on programs that promote self-sufficiency and personal responsibility, such as job training programs and educational opportunities. These individuals believe that while helping those in need is important, it should be done in a way that empowers individuals to become self-sufficient, rather than creating a cycle of dependence.
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describe two ways that you could determine the volume of a pair of dice
Answers
Answer:
The volume of a pair of dice could be gotten by measuring the
sides and calculating it via length/width/height. A second manner
would be displacement, where the dice are placed in a liquid with a
known density, and the mass of the liquid displaced is used to
determine volume.
Where would subduction most likely occur to form volcanoes ? answer this ASAP
Answers
do foxes like chicken? yes or no made by fox
Answers
Answer:
yes
Explanation:
Answer:
yes
Explanation:
HELPLLEOELWLELELEPLELELPELELELPPPP
Answers
that is correct, keep it up your doin well.
explain why the dicotyledonous flower is more successful in reproduction than the monocotyledonous flower
Answers
Answer:
leaves are arranged horizontally , flowers are lifted up, this facilitates pollination