I missed the following questions on my miderm can you help explain the correct c

Question

I missed the following questions on my miderm can you help explain the correct choices?

23. see image 3

25. which of the following statements is TRUE concerning globular proteins:

a) they most often perform structural roles

b) they often catalyze chemical reaction

c) they interact with lipids exclusively

d) they will always adopt highly irregular structures

28)denturation of a protein results in the loss of its native conformation and its biological activity. Which statement best describes what happens to a protein when its denatured?

a) the n-terminal and the c-termial ends of the protein are hydrolyzed by enzymes

b)peptide bonds are broken

c) new amino acids are joined to thr peptide backbone

d) secondary, tertiary, and quaternary levels of structure are disrupted

30. whih of the componant is not part of the nucleotide

a) a phosphate group

b) an amino acid group

c) a nitrogen containing base

d) a monosaccharide

32. The greater structural diversity shown by RNA compared to DNA can be attributed to

a) RNA using the monosaccaride ribose which changes the structure of the double helix

b) RNA possesing uracil in place of thymine as a nitrogen base

c) Both A&C

d) both B&C

Explanation / Answer

23. Sorry, I cannot read the problem in the photo you uploaded/

25. which of the following statements is TRUE concerning globular proteins:

a) they most often perform structural roles

b) they often catalyze chemical reaction

c) they interact with lipids exclusively

d) they will always adopt highly irregular structures

*** a is false because not all globular proteins perform structural roles unlike actin and tubulin. c is also false because they dont interact with lipids exclusively. d is also false because they dont highly adopt in irregular structures unlike fibrous proteins.

28)denturation of a protein results in the loss of its native conformation and its biological activity. Which statement best describes what happens to a protein when its denatured?

a) the n-terminal and the c-termial ends of the protein are hydrolyzed by enzymes

b)peptide bonds are broken

c) new amino acids are joined to thr peptide backbone

d) secondary, tertiary, and quaternary levels of structure are disrupted

30. which of the component is not part of the nucleotide

a) a phosphate group

b) an amino acid group

c) a nitrogen containing base

d) a monosaccharide

32. The greater structural diversity shown by RNA compared to DNA can be attributed to

a) RNA using the monosaccaride ribose which changes the structure of the double helix

b) RNA possesing uracil in place of thymine as a nitrogen base

c) Both A&C

d) both B&C

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