Quest 1 - Biochemistry

Front

What is the optimum temperature for the enzyme? Options: 0°C, 37°C, 55°C, 60°C

Back

37°C

Front

Which section of the graph includes the point at which the enzyme starts to denature? Options: I, II, III, IV

Back

III

Front

Compound X increases the rate of the reaction shown to the left. Compound X is most likely:

Back

An enzyme

Front

If there were no nitrogen compounds in the soil, the most immediate effect on plants growing in that soil would be difficulty in synthesizing

Back

Amino acids and proteins

Front

What percentage of the cytoplasm is composed of organic material?

Back

22

Front

In living organisms, lipids function mainly as

Back

Sources of stored energy and components of cellular membranes

Front

Which ingredient of a hamburger will test positive for the most protein?

Back

The hamburger meat

Front

In this reaction, which structure represents the enzyme? Options: A, B, C, D

Back

B

Front

Important functions of proteins EXCEPT:

• store energy
• structural components of the body (hair, nails)
• used for defense (antibodies)
• regulate cell functions (enzymes)

Back

store energy

Front

Main benefit of perspiring in mammals

Back

Cools the body when it evaporates