Answer:
A,D,B
Explanation:
Identify all statements that accurately describe the structure of the pyruvate dehydrogenase (PDH) complex. E2 contains three domains. The complex contains multiple copies of each of three enzymes. A regulatory kinase and phosphatase are part of the mammalian PDH complex. The core of the complex is made up of several copies of E1 . Several copies each of E1 and E3 surround E2 .
Answer: The statements that correctly describe the structure of pyruvate dehydrogenase (PDH) complex are:
--> E2 contains three domains.
--> A regulatory kinase and phosphatase are part of the mammalian PDH complex.
--> Several copies each of E1 and E3 surround E2 .
Explanation:
Enzymes are proteins that speeds up a metabolic reaction by lowering the amount of energy needed to start the reaction. The type of enzyme in a cell will determine the metabolic processes that will occur in it.
Pyruvate dehydrogenase complex which is located at the mitochondria matrix, is a group of enzyme that catalyzes the breakdown of pyruvate, which is the end product of glycolysis, to form acetyl-CoA. The product formed from the reaction which is acetyl-CoA in turn enters the citric acid cycle where it is further oxidized for cellular respiration.
The structure of Pyruvate dehydrogenase complex consists of:
--> Three catalytic enzymes: These include;
• E1: This is the first enzyme of the PDH complex called pyruvate dehydrogenase. It catalyzes the removal of one carbon atom from pyruvate which leads to the production of hydrohyethyl.
• E2: This is the second enzyme of PDH complex called dihydrolipoamide S-acetyltransferase. It catalyzes the transfer of hydroxyethyl group to oxidized form of covalently bound lipoamide, and the resulting acetyl group is then transferred to free coenzyme A to form ACETYL-CoA and reduced dihydrolipoamide. Several copies each of E1 and E3 surround E2 and it consist of three DOMAINS. These domains include: N-terminal 9 kDa lipoyl domain, 4 kDa peripheral subunit-binding domain and C-terminal 28 kDa catalytic (acetyltransferase) domain.
• E3: This is the third and last enzyme of PDH complex called the flavoprotein dihydrolipoamide dehydrogenase. It re-oxidizes the lipoyl group of dihydrolipoamide-E2 to form lipoamide-E2 and NADH.
--> Two regulatory enzymes: The activities of E1 which is the rate limiting step of PDH complex regulated by phosphatases (activators) and kinases (inhibitors).
--> A binding protein: these aids in the binding of E2 to E3 enzyme in the core of PDH complex.
The largest number of individuals of one species that an environment can support
Answer:
I believe you are looking for the Carrying Capacity.
Explanation:
Where does pollination take place for an orange tree?
A. Flowers
B. Leaves
C. Roots
D. Trunk
( please help due right now )
Answer:
its A :)
Explanation:
i got the answer correct on my work
is not sleeping bad for u
hi I didnt sleep for 16 hours and I have messed up sleep pattern
will i commit no alive
Answer:
It depends. 16 hours is a long time not to sleep. You need to sleep though. Your body needs at least 8 hours of sleep. But you need at least 5 to 6 hours of sleep. So your body can regenerate itself.
Explanation:
how many toes do velociraptors have
Answer:
Two toes
Explanation:
What the answer pls science
Answer:
B
Explanation:
for someone to choke it means the person lacks oxygen in the sense that its oxygen path has been blocked so its B
A balloon holds 50.0 mL of nitrogen at 25° C and a pressure of 736 mm Hg. According to Boyle's Law, answer the following questions for 2 points each: What will be the effect on the pressure inside the balloon if the volume is decreased to 25 mL? Explain how this would demonstrate Boyle's Law. Explain Boyle's Law in terms of the kinetic energy of molecule
Answer:
The correct answer is - would be double which is 1472 mm Hg.
Explanation:
According to Boyle's law that says the relationship between volume and pressure of a gas at constant pressure shows an inverse relationship which means if volume will increase then pressure will be decrease and vice versa.
P1V1 = P2V2 .........Boyle's law
Given: P1 = 736 mm Hg
V1 = 50 mL
P2 = ?
V2 = 25 mL
Solution:
from the Boyle's law
(P1V1)/V2 = P2
736×50/25 = P2
P2 = 1472
So the decreasing the volume to half increases the pressure double. It proves it follows Boyle's law
Decay product of Potassium-40
Answer:
calcium-40
Explanation:
reference table
Meiosis is a type of cell division that is specific to
Meiosis is a type of cell division that is specific to germ cells (gamete cells).
What is Meiosis?Meiosis may be defined as a type of cell division in which each parental cell is divided into four daughter cells. Each daughter cells are genetically unique to the parental cell and are haploid in nature.
Gamete cells are typically divided by this mechanism of cell division. This is because when toe distinctive gamete cells from male and female are fused together, the resultant zygote will have the entire set of genetic material.
The gamete cells significantly have half the amount of genetic content. Due to this, it is also known as reductional division.
Therefore, meiosis is a type of cell division that is specific to germ cells (gamete cells).
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why do the ribosomes read the nucleotides three bases at a time brainly
Answer:
because the codon reads 3 bases at a time
PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.
Answer:
b archean
i think good luck
giving brainliest to whoever answers correctly first
Answer:
food eaten or weeks
Explanation:
draw a graph to compare
Name 1 body system (NOT the digestive
system) that your "fave" food can
impact.
How does your "fave" food impact the
body system you selected?
(Hint: These are the body systems we will
be learning about- Excretory, Nervous,
Muscular, Circulatory & Respiratory. You
can also include Integumentary & Skeletal
My favorite food is Buffalo Wings
Answer:
I'll use your favorite food.
Explanation:
Buffalo wings have protein since they have meat. Protein helps the body build muscle, so it impacts the muscular system.
Kelly is blood group AB, Jacob is blood group B, and their daughter is blood group B. Given just this information, this couple could produce children expressing which of the following blood group phenotypes?
Answer:
a,b, and ab
Explanation:
The diagram below represents some stages in the life cycle of humans. The numbers in the diagram represent various processes in the cycle.
Identify the process(es) represented by 1 and 2. State how these processes (1 and 2) affect the amount of genetic information provided by a parent to its offspring.
Answer:
The diagram below represents some stages in the life cycle of humans. The numbers in the diagram represent various processes in the cycle.
1. "The processes reduce the amount of genetic information from each parent by half."
During sexual reproduction, a specialized cell division process called meiosis occurs. Meiosis involves two consecutive divisions, resulting in the production of four haploid cells (gametes) from a diploid cell.
2. "Each parent only contributes half of the genetic information that is contained in his or her own cells."
As mentioned earlier, meiosis results in the formation of haploid gametes. Each gamete contains only one set of chromosomes, which is half the number found in the parent's diploid cells.
During meiosis, homologous chromosomes pair up, and genetic recombination occurs between them, shuffling and exchanging genetic information.
3. "Each egg (or each sperm) will carry only half of the genetic information contained in the parent's body cells."
This statement reiterates that gametes (eggs or sperm) are haploid cells containing only one set of chromosomes. When a cell undergoes meiosis to produce gametes, it divides twice, resulting in four cells with half the genetic information of the parent's body cells.
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How did the angle of insolation affect temperature? What can you conclude about the effects of the position of the sun?
Answer:
The angle of incoming solar radiation influences seasonal temperatures of locations at different latitudes. ... At higher latitudes, the angle of solar radiation is smaller, causing energy to be spread over a larger area of the surface and cooler temperatures.
Explanation:
Energy: Mastery Test
2.
Some organisms in an ecosystem obtain energy and nutrients from plants. These organisms store the energy in their bodies. What happens to
the energy in the ecosystem when the organisms die?
ОА.
Some of the energy is used by decomposers, and some of the energy is released into the environment as heat.
OB. A portion of the energy is destroyed, which means the ecosystem must take in more energy from the universe.
Ос.
Most of the energy is converted into nuclear energy by decomposers, and the rest of the energy is absorbed by plants.
All of the energy is lost to the environment, which decreases the total amount of energy available in the ecosystem.
OD
Reset
Next
0
Answer:
energy used by decomposers
Explanation:
Energy used by decomposers are the ecosystem obtain energy and nutrients from plants.
What is Ecosystem?An ecosystem, also known as an ecological system, is made up of all the organisms and the physical setting in which they live. The nutrition cycles and energy flows connect these biotic and abiotic elements.
Photosynthesis is how energy enters the system and is absorbed by plant tissue. Animals play a significant part in the transfer of materials and energy through the system by eating plants and one another.
In addition to facilitating nutrient cycling by transforming nutrients held in dead biomass back into a form that can be easily utilised by plants and microorganisms, decomposers also release carbon into the atmosphere through the breakdown of dead organic matter.
Therefore, Energy used by decomposers are the ecosystem obtain energy and nutrients from plants.
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