Oxaloacetate is a key intermediate in the citric acid cycle, but it is also needed as a precursor for the synthesis of glucose during gluconeogenesis. Oxaloacetate is also fairly chemically unstable and undergoes spontaneous decarboxylation to pyruvate. Although oxaloacetate is not depleted by participation in the citric acid cycle, it can become depleted by other processes, necessitating its replenishment by various synthetic pathways. Use the Metabolic Map to identify enzymes that can replenish oxaloacetate or other citric acid cycle intermediates.

Answers

Answer 1

Answer:

Carboxylating pyruvate into oxaloacetate.

Explanation:

Replenishing oxaloacetate is done by carboxylating pyruvate into oxaloacetate through a process that is catalyzed by an enzyme called pyruvate carboxylase. This enzyme speed up the process and the replenishing of oxaloacetate occur quickly and the oxaloacetate is ready to function and participate in different chemical reactions.

Answer 2

Depleted oxaloacetate can be replenished by the carboxylation of pyruvate by the enzyme pyruvate carboxylase.

What is the citric acid cycle?

The citric acid cycle is a cycle which is important in aerobic respiration for the production of ATP.

One of the intermediates in the citric acid cycle is oxaloacetate.

Oxaloacetate combines with acetylcoA to form citric acid.

Depleted oxaloacetate can be replenished by the carboxylation of pyruvate by the enzyme pyruvate carboxylase.

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Related Questions

Please Help! What change do we get in membrane potential as a result of acetylcholine binding to nicotinic receptors on skeletal muscle cells?

Depolarization or Hyperpolarization​

Answers

Binding of acetylcholine to nicotine cells acetylcholine receptors triggers a rapid increase in permeability of the membrane to both Na+ and K+ ions, leading to DEPOLARIZATION.

Which of the following statements about cell respiration is true?
A In the electron transport chain, Oz is converted to CO2.
B Glycolysis splits sugar to produce pyruvate and FADH2-
C Electrons leave the electron transport chain in a molecule of water (H20).
D
Both B and C are correct.

Answers

The statement which is true about cell respiration is; Choice B: Glycolysis splits sugar to produce pyruvate and FADH2-

Definition of terms:

Cellular respiration is a process used by all living organisms to convert glucose into energy.

Cellular respiration is a collection of three unique metabolic pathways: glycolysis, pyruvate oxidation, the citric acid cycle, and the electron transport chain.

Glycolysis; This pathway is anaerobic and takes place in the cytoplasm of the cell.

This pathway breaks down 1 glucose molecule and produces 2 pyruvate molecule. A process which releases FADH2- in the process.

Pyruvate Oxidation: In eukaryotic cells, the mitochondria is the site of pyruvate oxidation. The release of CO2 is a characteristic of this step.

The Electron transport chain: The electron transport chain is the final component of aerobic respiration and is the only portion of glucose metabolism that uses atmospheric oxygen.

Electrons are rapidly transferred from one component to the next to the endpoint of the chain, where the electrons reduce molecular oxygen, O2 producing water in the process.

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What would the complementary strand of GTCCGTAACGTAT be?

Answers

Answer:

CAGGCATTGCATA

Explanation:

Given: GTCCGTAACGTAT

Under Chargaff's rule, Adentine is equal to Thymine, and Cytosine is equal to Guanine. (A=T, C=G)

Do natural hazards always become natural disasters? What are some things that people can do that might influence whether or not a natural hazard will become a natural disaster?

Answers

Answer:

SLLLW

Explanation:

People influence weather in many ways. For example, cities create heat islands, crops produce humidity and roads increase the intensity of floods.

Ocean currents store energy and help to distribute heat and

Answers

Answer:

One way that the world’s ocean affects weather and climate is by playing an important role in keeping our planet warm. The majority of radiation from the sun is absorbed by the ocean, particularly in tropical waters around the equator, where the ocean acts like a massive, heat-retaining solar panel. Ocean water is constantly evaporating, increasing the temperature and humidity of the surrounding air to form rain and storms that are then carried by trade winds. In fact, almost all rain that falls on land starts off in the ocean. The tropics are particularly rainy because heat absorption, and thus ocean evaporation, is highest in this area.

Major current systems typically flow clockwise in the northern hemisphere and counterclockwise in the southern hemisphere, in circular patterns that often trace the coastlines.

Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics.

Explanation:

One way that the world’s ocean affects weather and climate is by playing an important role in keeping our planet warm. The majority of radiation from the sun is absorbed by the ocean, particularly in tropical waters around the equator, where the ocean acts like a massive, heat-retaining solar panel. Land areas also absorb some sunlight, and the atmosphere helps to retain heat that would otherwise quickly radiate into space after sunset.

The ocean doesn't just store solar radiation; it also helps to distribute heat around the globe. When water molecules are heated, they exchange freely with the air in a process called evaporation. Ocean water is constantly evaporating, increasing the temperature and humidity of the surrounding air to form rain and storms that are then carried by trade winds. In fact, almost all rain that falls on land starts off in the ocean. The tropics are particularly rainy because heat absorption, and thus ocean evaporation, is highest in this area.

Outside of Earth’s equatorial areas, weather patterns are driven largely by ocean currents. Currents are movements of ocean water in a continuous flow, created largely by surface winds but also partly by temperature and salinity gradients, Earth’s rotation, and tides. Major current systems typically flow clockwise in the northern hemisphere and counterclockwise in the southern hemisphere, in circular patterns that often trace the coastlines.

Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth’s surface. Without currents in the ocean, regional temperatures would be more extreme—super hot at the equator and frigid toward the poles—and much less of Earth’s land would be habitable.

After the pocket of magma slowly cools, what does the magma become?

A. Intrusive igneous rock

B. Extrusive igneous rock

C. Sedimentary rock

D. Metamorphic rock

Answers

Answer:

When magma slowly cools,it becomes an igneous Rock

Explanation:

An intrusive igneous rock is when magma is trapped far down in earth.

Extrusive igneous rock is formed when exits and cools above the surface of earth.

What does this model represent

Answers

did you attach a photo? i cant see anything.

Which is NOT a function of the stem in plants?

Answers

Answer:

abortion of water from the soil

Explanation:

Answer:

Absorption of water from soil

Explanation:

That's what the roots do :)

12 Explain How does the scientific use of the word efficiency
differ from the everyday use of the word?

Answers

Explanation:

Scientific: the ability to avoid wasting energy or money efforts

how we use it everyday: to to get thing done without a hitch.

I'd say we use it in a very layied back way.

Describe at least two abiotic and two biotic factors found in this biome. (Desert Biome) How
do these abiotic factors interact with the biotic factors?

Answers

Abiotic: the sunlight and water.

Biotic: Plants and insects

Explanation:

Plants such as cactuses can absorb and conserve water in their roots and use the sunlight to grow taller

Insects such as Desert beetles can trap moisture in their thick exoskeletons so they are parched or burned by the sun. They sometimes bury themselves deep in the sand where it's cooler.

The abiotic factors in the desert help the biotic factors survive

The dispersal of food coloring in a beaker of water is an example of what process?

Answers

Answer:

this is an example of the process DIFFUSION

____ is the process of cell division that results in the formation of cells with half of the usual number of chromosome?

Answers

Answer:

I think

the answer is meiosis

Explanation:

Have a great day

In the oceans on either side of the Isthmus of Panama are 30 species of snapping shrimp, 15 species on the Pacific side and 15 different species on the Atlantic side. Species live at different water depths. Morphological and genetic data show that Atlantic and Pacific species that live at similar depths are sister species. Geological evidence indicates that the Isthmus of Panama started rising about 10 million years ago and the oceans were completely separated by the isthmus about 3 million years ago. If the isthmus indeed formed gradually, which of the following patterns of genetic differences is most likely in these species pairs?
A) similar percentages of difference in DNA sequences between all pairs of sister species
B) greater percentage of difference in DNA sequences between sister species that inhabit deep water than between sister species that inhabit shallow water
C) greater percentage of difference in DNA sequences between sister species that inhabit shallow water than between sister species that inhabit deep water
D) greater percentage of difference in DNA sequences among Atlantic species than among Pacific species

Answers

Answer:

B) greater percentage of difference in DNA sequences between sister species that inhabit deep water than between sister species that inhabit shallow water

Explanation:

The isthmus formed gradually. About 10 million years ago, the isthmus began to separate the waters from the bottom, and snapping shrimp individuals inhabiting the deepness were separated for the first time. Since their separation, both groups evolved according to their new environment and the pressures acting on them. They started to gradually differentiate from each other, probably suffering many mutations through the years.

About 3 million years ago, the oceans were completely separated by the isthmus, meaning that those animals inhabiting the shallowest areas were the last ones to separate from each other on each side of the isthmus. Since then, they probably also suffered many mutations that drove them to differentiation.  

However, as animals inhabiting the shallowest areas were the last ones to separate and, considering the time-lapse between both divergences, the highest degree of genetic difference is expressed by the sister groups inhabiting the deepest areas. Being separated from each other for a much longer time than shallow animals gave them more time to suffer more mutations and differentiate more.

The sister species at the depth of the ocean possesses a greater difference as compared to the sister species in shallow regions. Thus, option B is correct.

Evolution is the process of inheritable changes in the species with natural selection. The species in the close generation have a higher level of similarity in the traits.

What is the relation between the sister species?

The sister species are the ones with the similarity in the traits. Thus, have the same ancestors and exhibit a greater percentage of trait similarity.

Atlantic and Pacific species are sister species and have similarities in the DNA sequence.

The isthmus separation is formed later in the ocean. The species present at the deeper range are older and are evolved. The species in the shallow region have less evolution as they are separated later.

Thus, the sister species at the depth of the ocean possesses a greater difference as compared to the sister species in shallow regions. Thus, option B is correct.

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A group of students used this diagram to classify three organisms into different kingdoms which table identifies the three kingdoms

Answers

Answer:

Answer is c. fungi, protista and plantea


“Friendly" microbes secure a place to live and grow,
keeping less friendly microbes from taking control.

Is this an example of mutualism or not?

Answers

Answer:

yes because this positivley affectz both friendly microbes

1. In DNA, the complementary bases are A-T and C-G, what is different about the complementary base pairing rules for RNA?

2. What amino acid is made from the mRNA codon GUA?

3. If the original DNA sequence is TAC-CCC-GAT-CGT, what would the complementary mRNA sequence be?

4. Using the mRNA sequence from number 3, what amino acids will be made from that sequence?

5. What are all the possible codons that would create the amino acid histidine (his)?

6. How many different codons are there that will create arginine (arg)?

7. If the amino acids joined together to make a protein are valine-proline-stop, what is one of the possible sequences of mRNA that could have created it?​

Answers

1. T is changed to U
2. Val
3. AUG GGG CUA
4. Met gly leu
5. CAU CAC
6. CGU CGC CGA CGG
7. GUC CCC UAA

These are my guesses but I’m 90% sure these are correct!!

You gain health benefits from exercising for a minimum of
a 10 minutes three times a week
b. 10 minutes two times a week
C 20 minutes three times a week
d. 20 minutes two times a week
Please select the best answer from the choices provided
O O O O
ооо »

Answers

Answer:

c. 20 minutes three times a week

Explanation:

Exercising is very important, becuase it improves your health and reduce the risk of developing several diabetes, cancer and many other terrible other effects. Physical activity and exercise can have immediate and long-term health benefits. Regular activity can improve your quality of life.

Go out and exercise! Even if it's just yoga!

Hope this really helps!

Answer:

C.20 Minutes Two Times A Week

Explanation:

6. Calculate the kinetic energy of a baseball thrown by Aroldis Chapman, who holds the world record for fastest pitch. The baseball
has a mass of 0.145 kg and velocity of 47.0 m/s.
a. 3.40J
b. 320 J
c. 6.82 J
d. 160J

Answers

Answer:

D

Explanation:

=122

ability of a cell to form the whole organism​

Answers

Answer:

Totipotency

Explanation:

Totipotency can be regarded as

capability of single cell to divide,develop as well as to form differentiated cells in a living body. This could be found in Meristematic plant cells since they posses the ability to develop into complete plants. Totipotent cells can be formed during sexual and asexual reproduction and these could include spores and zygotes. Some organism can experience totipotency in the sense that cells can dedifferentiate as well as regaining totipotency. Instance of this is plant cutting which used in growing an entire plant.

Can someone please help me I have been stack on this question for a while know.

Answers

Answer:

Each of the spiders receive different genetic combinations from their parents, and as a result are genetically different from each other.

Explanation:

The boxer bunched his fingers into a fist and hit the bag as hard as he could.
1. YES
NO
The farmer placed a bunch of grapes on the table.
2. YES
NO
The florist bunched together a spray of roses to fit into the vase.
3. YES
NO
A bunch of kids raced down the beach and dove into the waves with their boogie
boards.
4. YES
NO
The Brady Bunch was a popular television show in the 70's.
5. YES
NO
At the karate demonstration, the instructor bunched his fingers together and broke
the block of wood.
6. YES
NO
The blankets were bunched up at the foot of the bed.

Answers

Yes yes yes yes yes yes yes

Answer:

1. bunched means to collect into a tight group

2. bunch means a group of (grapes)

3. bunched means to collect into a tight group

4. bunch means a group of (kids)

5. The Brady Bunch: Bunch is part of their name but it also means a group

6. bunched means to collect into a tight group

7. bunch means a group of (blankets)

Explanation:

Hope this helped,  I'm not sure what the exact question is since you didn't put one but I assume you want to know if the word bunched is the same as something so I defined each one for you :)

judging from the diagram, tropical cyclones are powered by

Answers

Answer:

Based on the diagram, tropical cyclones are powered by cold, high altitude air.

amount of force times the distance it moves an object

Answers

Answer:

Work

Explanation:

Work=Force*Distance

Note: this is physics, not biology

You have a circular plasmid containing 9 kb of DNA, and you wish to map its EcoRI and BamHI sites. When you digest the plasmid with EcoRI and run the DNA on a gel, you observe a single band at 9 kb. You get the same result when you digest the DNA with BamHI. When you digest with a mixture of both enzymes, you observe two bands, one 6 kb and the other 3 kb in size. Explain these results. Draw a map of the restriction sites.

Answers

Answer:

A nick is created between G and A in GAATTC when using Eco R1 site while a nick is generated between G and G in GGATCC when Bam H1 is used. The difference in the nicks created is the main reason you observe two bands when you digest the circular plasmid with a mixture of both

Explanation:

Circular plasmid containing : 9 kb of DNA

Eco R1 and Bam H1 are known as restriction sites in DNA ( i.e. special sequences found in a DNA ) hence they can  be specifically cleaved by the restriction enzymes enabling the insertion of a gene. that is why you will get a same result when you digest the Plasmid with either Eco R1 or Bam H1

but A nick is created between G and A in GAATTC when using Eco R1 site while a nick is generated between G and G in GGATCC when Bam H1 is used. The difference in the nicks created is the main reason you observe two bands when you digest the circular plasmid with a mixture of both

Which of the following does not provide new genetic combinations?

Answers

Can you be more jsnsnsnsnvsvzgs

how do genes create traits in a organism

Answers

Answer:

Like chromosomes, genes also come in pairs. Each of your parents has two copies of each of their genes, and each parent passes along just one copy to make up the genes you have. Genes that are passed on to you determine many of your traits, such as your hair color and skin color.

is this what you are looking for

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Cells Unit Test 705
01:04:11
KAYLEN HAWKINS
QUESTION 17
Endocytosis relies on which two organelles to move molecules into the
cell?
Cell membrane and vesicle
Cell membrane and cell wall
Mitochondria and vesicle
4
Mitochondria and cell membrane

Answers

Answer:

Cell membrane and vesicle

B. Exercises
Exercise 1 True or False
Directions: Write Tif the statement is TRUE and Fif the statement is FALSE in your
answer
sheet.
1. T The installation of pipe is plumbing.
Steel piping is designed for a long list of applications.
3. Cutting Tools used in measuring number relating the item under study and the referenced
unit of measurement.
Measuring tools help hand tools and power tools work together, especially important for the
variety of drilling tasks that get done in woodworking.
5. Holding Tools used for holding firmly any material that has to be cut.
6. Indicates the quantity and unit of materials still available in the stockroom is the Balance on
Hand.
7. Unit writes the unit of measuring quantity.
8. A price of material per piece or per unit is Unit Price.
9. The one who signed a signature in a borrower's slip is a borrower.
10. Job Order is not workings sheet that server as a complete guide of the student to a certain
task to be done.
11. Materials and tools are not in accordance with specifications.
12. Check the tools with accessories. See to it that nothing is missing.
13. Check if the materials and tools are of correct specifications,
14. Get replacements for those unreturned materials or tools.
15. Take the issued materials and tools to the workplace.​

Answers

Answer:

True

Explanation:

exercise can out use food is bad thing in body work smell feeling bad out anut

Which of the following tropisms are the
same as geotropism?
a. thigmotropism
b. hydrotropism
c. phototropism
d. gravitropism

Answers

Answer:

d

Explanation:

d.gravitropism as it's both going downwards

9.
Strand A would normally be found in the
A. plasma membrane
B. ribosome.
Yasuole
nucleus

Answers

Answer:

the Nucleus

Explanation:

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Please help me on this you recently increased you're spending on marketing by 10%. you now spend 5500 per month. revenue increase by 1000 per month and you're gross margin percentage is 70%. All other expenses stayed consant. Did the increase pay off? if a=2,b=-1,c=-3 and d=-2.find the value of 7a2-3ac+d2 In the text box below,Identify;Main argumentMain supporting argumentsThe evidence line used for each supporting argument 13aa. Define inspiration1 pointYour answer What are disadvantages of the "Aoudad"?PLEASE ANSWER ASAP!! What are theinvisible linesrevealed by theIron fillingssurrounding amagnet called? How was Taft's foreign policy different fromRoosevelt's foreign policy? MAKING INFERENCES. What do you think theBritish were trying to accomplish by exportingopium to China? civil war questions like what ifs... or what would have happened if....?!?? The coordinates of the point where the lines y= 2x- 3 andy=5 intersect are? 7) Taylor has a bag of marbles that are all the same size. Of all the marblesin the bag, there are 5 red, 6 pink, 7 blue, 3 green, and 4 yellow marbles.Using a probability model for this experiment, predict how many timesTaylor would pick up a red marble if she choses a marble 300 times. *I ILL GIVE BRAINLESTTTTTT PLEASE HELP. I will do anything, please. May someone explain what I have to do? Explain with steps please. Im having trouble comprehending this. FOR BRAINIEST PLEASE HELPP!!! 746WPlsssss I will mark Brainly est A bank wonders if omitting the annual credit card fee for customers who charge at least $2400 in a year will increase the amount charged on its credit cards. The bank makes this offer to an SRS of 200 of its credit card customers. It then compares how much these customers charge this year with the amount that they charged last year. The mean increase in the sample is $332, and the standard deviation is $108. II. Based on the material in Chapter 3, address the issue of human freedom in a socially structured world. That is, to what extent do you think people are free to think and act as they wish? In answering this question, consider the theories presented in the chapter-for example, why does Mead's theory point to greater human freedom than Freud's theory? determining slope and y-intercept Please help! look at picturewhat is the slope?a: 0b: 5c:1/5d: -1/5