Quest 1 - Biochemistry

What is the optimum temperature for the enzyme?

• 0°C

• 37°C

• 55°C

• 60°C

Which section of the graph includes the point at which the enzyme starts to denature?

• I

• II

• III

• IV

Tags

NGSS.HS-PS1-5

Compound X increases the rate of the reaction shown to the left.

Compound X is most likely:

• An enzyme

• An indicator

• A lipid molecule

• A carbohydrate

Tags

NGSS.HS-PS1-5

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

• Amino acids and proteins

• Monosaccharides and cellulose

• Glucose and polysaccharides

• Fatty acids and lipids

Tags

NGSS.HS-LS1-6

What percentage of the cytoplasm is composed of organic material?

• 15

• 20

• 22

• 92

In living organisms, lipids function mainly as

• Sources of stored energy and transmitters of genetic information

• Sources of stored energy and components of cellular membranes

• Transmitters of genetic information and catalysts of chemical reactions

• Catalysts of chemical reactions and components of cellular membranes

You are testing all the ingredients of your hamburger for the presence of protein. Which ingredient will test positive for the most protein?

• The bread bun

• The hamburger meat

• The french fries

Tags

NGSS.HS-LS1-7

In this reaction, which structure represents the enzyme?

• A

• B

• C

• D

Tags

NGSS.HS-PS1-2

All of the following are important functions of proteins EXCEPT:

• store energy

• structural components of the body (hair, nails)

• used for defense (antibodies)

• regulate cell functions (enzymes)

Unlike other animals, mammals can perspire. The main benefit of perspiring is that

• Cools the body when it evaporates

• Relaxes the muscles

• Removes dirt from the surface of the skin

• Removes extra water from your blood

Tags

NGSS.HS-LS1-3