What are the correct answers to this page of questions? 17. Identify the incorre

Question

What are the correct answers to this page of questions?

17. Identify the incorrect statement about the molecule shown below balance between -membrane fhuidity and stability. C. This molecule has properties in common with both glycolipids and phospholipids. D. The name of this molecule is likely to begin with phosphatidy! E. None of the above statements about the molecule are incorrect 18. Which pyrimidine base(s) is/are found in both RNA and DNA? A. Thymine B. Uracil Cytosine (A) and (C) (A), (B), and (C) E. Which of the following statements about enzyme inhibition is incorrect? A. A non-competitive inhibitor does not have to physically resemble the natural B. In irreversible enzyme inhibition, if the concentration of inhibitor molecules is greater 19. substrate C. D. E. than the concentration of enzyme, the effects of the inhibitor can be overcome by increasing the concentration of natural substrate. Reversible inhibitors are typically molecules that are synthesized by the cells in which the inhibition is observed A competitive inhibitor directly prevents the binding of the natural substrate to the enzyme None of the above; all of the statements about enzyme inhibition are correct 9

Explanation / Answer

(17)

C.the length of the hydrocarbon tails can be adjusted to maintain balance between membrane fluidity and stability

Amount of unsaturation and the cholesterol content of the membrane helps to maintain the balance between membrane fluidity and stability

(18)d. A and C

Thymine and cytosine are the pyrimidines present in both DNA and RNA.

(19)

Option B

Explanation:

Irreversible enzyme inhibitors bind tightly to the enzyme by either covalent or non-covalent bonds

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