Where would you expect to find serine and alanine amino acids in a globular protein in aqueous solution?

(a) Serine would be in the interior, and alanine would be on the exterior of the globular protein.

(b) Alanine would be in the interior, and serine would be on the exterior of the globular protein.

(c) Both serine and alanine would be in the interior of the globular protein.

(d) Both serine and alanine would be on the exterior of the globular protein.  

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The vitamin Niacin functions as a coenzyme in:

1. Nucleoprotein synthesis

2. Hydrogen transport

3. Fatty acid synthesis

4. RBC production

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The six most common atoms in organic molecules are:

1. Carbon, Hydrogen, Oxygen, Helium, Calcium and Sulphur

2. Carbon, Hydrogen, Oxygen, Calcium, Magnesium and Sulphur

3. Carbon, Oxygen, Nitrogen, Sulphur, Phosphorous and Magnesium

4. Carbon, Hydrogen, Oxygen, Nitrogen, Phosphorous and Sulphur

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Element Analysis
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The unique properties of each amino acid are determined by its particular:

1. R group

2. Amino group

3. Kinds of peptide bonds

4. Number of bonds to other amino acids 

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Based on the graph of an enzyme-catalyzed reaction, which of the following could be used to increase the reaction rate beyond point C?

1. increase the amount of substrate

2. add more water

3. increase the temperature

4. decrease enzyme concentration

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Enzyme Catalysis
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Which of the following biomolecules does have a phosphodiester bond?

(1) Fatty acids in a diglyceride

(2) Monosaccharides in a polysaccharide

(3) Amino acids in a polypeptide

(4) Nucleic acids in a nucleotide

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The chitinous exoskeleton of arthopods is formed by the polymerisation of 

(1) keratin sulphate and chondroitin sulphate

(2) D-glucosamine

(3) N-acetyl glucosamine

(4) lipoglycans

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Which one of the following statements is correct, with reference to enzymes?

(a) Apoenzyme = Holoenzyme + Coenzyme

(b) Holoenzyme = Apoenzyme + Coenzyme

(c) Coenzyme = Apoenzyme + Holoenzyme

(d) Holoenzyme = Coenzyme + Cofactor

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Which of the following are not polymeric?

(a) Nucleic acid                (b) Proteins

(c) Polysaccharides           (d) Lipids

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A non-proteinaceous enzyme is

(a) lysozyme           (b) ribozyme

(c) ligase                (d) deoxyribonuclease

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