Question

1. Which statement about enzymes is true?

A. One enzyme can catalyze many different types of reactions for a variety of substrates.

B. The shape of an enzyme determines its specificity.

C. Enzymes eliminate the activation energy barrier.

2. How would a cell with higher-than-average metabolism compare to a cell with normal metabolism during a specific period of time?

A. It would produce larger amounts of waste.

B. It would break down substances at the same rate.

C. It would die more quickly.

3. Select the true statement about supplements.

A. Drinking bottled water is better for your health than drinking tap water.

B. Supplementing with mega-doses of vitamins has been shown to help prevent cancer.

C. Eating a diet rich in trans fats is correlated with a higher risk of cardiovascular disease.

D. Eating fiber bars is often more healthful than eating fiber rich vegetables because fiber bars contain more non-nutritive additives.

4. The process by which allele frequencies change over time as a result of chance is called _________.

A. gene frequency

B. the founder effect

C. genetic drift

D. Hardy-Weinberg equilibrium

Answer 1

1)

2) a cell with higher-than-average metabolism will produce the larger amount of waste compared to a cell with normal metabolism during a specific period of time because of its high metabolic rate.

3) Eating a diet rich in trans fats is correlated with a higher risk of cardiovascular disease is the true sentence because the diet with high trans fats will raise our LDL cholesterol level and lowers HDL cholesterol which causes TypII diabetics of heart diseases.

4) The process by which allele frequencies change over time as a result of chance is called genetic drift.