The effect of temperature decrease on the activity of a typical non-digestive human enzyme has to be predicted. Concept introduction: Most of the enzymes exhibit a narrow maximum activity over a narrow pH . Variations in this pH range can affect the enzyme activity. The pH at which an enzyme shows maximum activity is known as the optimum pH . The temperature at which an enzyme shows maximum activity is known as the optimum temperature. The physiological pH range is 7 .0 − 7 .5 .

Question

The following statements are either True or False. Please label accordingly. a. L-Amino reductase is an enzyme. b. Allosteric enzymes are composed of two or more protein chains. Heavy metals are examples of inhibitors. They function by binding to sulfur on cysteine amino acid residues. C. d. A reversible noncompetitive inhibitor temporarily blocks an enzyme's active site. Enzymes don't denature as easily as smaller proteins when heated or stressed due to their complex secondary and tertiary structure. e. Oxidative phosphorylation is the biochemical process by which ATP is synthesized from ADP when protons cross the inner mitochondrial membrane. f. g. DNA and RNA strands differ only in the fact that DNA forms a double helix. h. There is no secondary structure in RNA strands.

Answer 1

Question

Chapter 21, Problem 21.46EP

(a)

Interpretation Introduction

Interpretation: The effect of temperature decrease on the activity of a typical non-digestive human enzyme has to be predicted.

Concept introduction: Most of the enzymes exhibit a narrow maximum activity over a narrow pH. Variations in this pH range can affect the enzyme activity. The pH at which an enzyme shows maximum activity is known as the optimum pH. The temperature at which an enzyme shows maximum activity is known as the optimum temperature. The physiological pH range is 7.0−7.5.

(b)

Interpretation Introduction

Interpretation: The effect of temperature decrease on the activity of a typical non-digestive human enzyme has to be predicted.

Concept introduction: Most of the enzymes exhibit a narrow maximum activity over a narrow pH. Variations in this pH range can affect the enzyme activity. The pH at which an enzyme shows maximum activity is known as the optimum pH. The temperature at which an enzyme shows maximum activity is known as the optimum temperature. The physiological pH range is 7.0−7.5.

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