Question

The Krebs cycle is a circle. What do you think would happen if you removed one...

The Krebs cycle is a circle. What do you think would happen if you removed one of the compounds from that circle to make an amino acid (this does happen, Alpha-ketogluterate is the basic building block for many amino acids)? The cell has a variety of other pathways that can make oxaloacetate (the final 4 carbon product in the krebs cycle) from other molecules in the cell. Why might these alternative pathways be important?

Homework Answers

Answer #1

these alternative Pathways are important because of the multiple substrate and product reactions. When Alpha ketoglutarate is terminated due to the formation of amino acid then the availability of these molecules are reduces hands leads to reduction in the production of succinate. Less amount of succinate leads to less production of further molecules and ultimately oxaloacetate.

When an onother alternative is present in the mitochondrial matrix then we can recover or produce desired quantities of oxaloacetate and then continues the production of energy by proceeding krebs cycle.

so these alternative Pathways are helpful when a molecule of mid pathway is terminated for another process so that we can recover or continuous the cycle by obtaining desired molecule from other pathway.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
What would happen to a protein like signal peptidase if you removed its signal peptide but...
What would happen to a protein like signal peptidase if you removed its signal peptide but added a nuclear localization signal (NLS)? It would end up in the nucleus. It would end up in the cytoplasm It would be secreted None of the above What would happen to a secreted protein (e.g. insulin) if you produced it from an mRNA missing the sequence encoding the signal peptide? It would be properly secreted, though it might not fold correctly. It would...
1. Define the following terms: a) macromolecule b) monomer c) polymer 2. For each of the...
1. Define the following terms: a) macromolecule b) monomer c) polymer 2. For each of the biological molecules in the table below, describe its functions and list a specific example of a monomer and a polymer. Be sure to look at the examples of structural formulas shown in your book (e.g., Fig 3.5, 3.6). Macromolecule Functions Monomer Polymer Carbohydrate Protein Protein (we will learn the names of some specific proteins later) Nucleic acid 3. When monomers are joined together to...
2...the tertiary structure of a protein refers to the order of amino acids along the chain...
2...the tertiary structure of a protein refers to the order of amino acids along the chain three dimensional structure of the molecule alpha helix or pleated sheet arrangement interaction of several peptide chains A....Carbohydrate molecules form the regulatory molecules known as enzymes. contain the genetic information found in cells. are the body's most readily available source of energy. are composed of C, H, O, and N atoms. are the building blocks of cellular membranes. B....Lipids which are used to store...
(This is BIOchemistry) While seeking some vitamin supplements, you happen across two brands that both advertise...
(This is BIOchemistry) While seeking some vitamin supplements, you happen across two brands that both advertise containing vitamin B6. Reading the labels, you see one contains pyridoxamine (PM) and the other contains pyridoxine (PN). a.) Is there any difference in effectiveness between the two brands? In your answer, explain what metabolically-important compound is being made and what enzymes are needed. b.) A third bottle contains a compound called pyritinol and advertises itself as being a study aid or "smart drug"....
One important difference between the anatomy of roots and the anatomy of leaves is that _____....
One important difference between the anatomy of roots and the anatomy of leaves is that _____. a. Leaves are covered in a waxy cuticle and stomata, which is absent from roots b. Only roots have ground tissue c. Only leaves have epidermal tissue d. Root cells have cell walls and leaf cells do not e. Roots contain vascular tissue, whereas leaves do not Which of the following statements regarding ATP is true? a. It has high potential energy because it...
Flag this Question Question 411 pts When an electron is transferred from one atom to another,...
Flag this Question Question 411 pts When an electron is transferred from one atom to another, and the two atoms are then electrically attracted to one another, a(n) ________________ bond is formed. ionic kinetic covalent hydrogen Flag this Question Question 421 pts Changing the number of ____________ of an atom would change the chemical properties of the atom. neutrons protons electrons electron shells Flag this Question Question 431 pts Forming molecules and breaking down molecules in biological organisms usually requires...
1. Actin filaments and microtubules have certain similarities. Which one of the following statements would NOT...
1. Actin filaments and microtubules have certain similarities. Which one of the following statements would NOT be a similarity between acting filaments and microtubules? a. They are both formed from globular protein monomers. b. They are both unstable and can form and then fall apart. c. They both involved bidding of a nucleotide triphosphate. d. They both form a hollow tube-like structure. 2. Which of the following characteristic is NOT TRUE regarding the function and structure of the enzyme ATP...
The scientific method is best distinguished from earlier forms of knowledge by Accurate measurements              b. inductive...
The scientific method is best distinguished from earlier forms of knowledge by Accurate measurements              b. inductive reasoning           c. deductive reasoning d. publishing of results                 e. experimentation Which one word best describes a tentative explanation of the data? a. control        b. deduction    c. theory          d. placebo       e. hypothesis An explanation which has been widely tested, which is not found to be false, and which explains a large group of observations is called                      a. quantitative analysis           b. a theory Qualitative...
When is a hypothesis considered scientific? a. when it is based on something other than observation...
When is a hypothesis considered scientific? a. when it is based on something other than observation b. when it can be tested and is refutable c. when it relies on anecdotal evidence d. when it relies on mystical explanations e. All hypotheses are considered scientific until experiments determine otherwise. 3. Of the following, which is the earliest step in the scientific process? a. generating a hypothesis b. analyzing data c. conducting an experiment d. drawing a conclusion e. developing a...
QUESTION 60 The process by which undigested or waste material is removed from the gastrointestinal tract...
QUESTION 60 The process by which undigested or waste material is removed from the gastrointestinal tract is A. elimination B. secretion C. urination D. mechanical processing E. absorption 1.5 points    QUESTION 61 The products (a whole bunch at once) of the endoplasmic reticulum are transported to the Golgi apparatus by an organelle called: (it's not the same question that you may have seen previously) A. free-floating ribosomes B. cilia C. gated channels D. endocytosis E. vesicles 1.5 points   ...