Unit 3 BA Review

Lipids provide ____.

• a method of storing energy

• thermal insulation

• the structure of the cell membrane

What are the basic building blocks of proteins?

• nucleic acids

• peptide bonds

• amino acids

• glycerol and fatty acids

Tags

NGSS.HS-LS1-6

Cellular respiration is a process:

• in which cells release the energy from nutrients

• in which cells combine nutrients with oxygen

• which must occur in all living things

• All of the choices are correct.

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Abnormal mitochondria are likely to be associated with disturbance in the cell’s:

• A. division

• B. food supply

• C. protein formation

• D. energy supply

Tags

NGSS.HS-LS1-7

Fill in the blank: The energy in glucose can be released by all of these EXCEPT _______.

• combustion (burning)

• aerobic respiration

• anaerobic respiration

• photosynthesis

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

Which of the following statements about cycles of matter is TRUE?

• A) Matter is lost in each cycle.

• B) Human activity has little or no impact on cycles.

• C) Each cycle is independent of energy.

• D) Matter is moved between the physical environment and living organisms.

Tags

NGSS.HS-LS2-3

NGSS.HS-LS2-4

NGSS.HS-LS2-5

Fruits and vegetables mostly contain which macromolecule?

• protein

• carbohydrates

• lipids

• nucleic acids

Which of the following is an experimental variable in the experiment represented by the graph above?

• pH

• temperature

• type of enzyme

• amount of enzyme

Fill in the blank: The graph indicates that enzyme X is least active at a pH of ____. A) 2 B) 6 C) 10 D) 12.

• 2

• 6

• 10

• 12

What does the graph suggest about the relationship between pH and enzyme activity?

• A) Directly proportional

• B) Inversely proportional

• C) No relationship

• D) Varies with different enzymes.