Question

1. Which of these does NOT take place during interphase of the cell cycle?
A) Cell division
B) DNA replication
C) Cell growth
D) Gene expression
E) All of the above take place during interphase

2. Lawn grass is an example of a plant that does ‘C3’ photosynthesis. Crab grass does ‘C4’
photosynthesis. During long dry periods...
A) both plants must close their stomates to retain water. But a C4 plant can still make
food with CO2 provided by a stored C4 compound
B) a C3 plant must close its stomates, but a C4 plant can keep its stomates open to get
CO2
C) C4 plants can still make food because they can get water from a stored C4
compound
D) both plants must close their stomates to retain water. But C4 plants can still make
food because the enzyme rubisco can use either CO2 or O2

3. Among the descriptions below, which one BEST describes a homologous pair of chromosomes?
A) A chromosome pair joined at a centromere
B) A chromosome pair with the same genes within the same cell
C) A chromosome pair within a diploid cell
D) A pair of sex chromosomes in the same cell

4. Products of the light reactions of photosynthesis that are sent to the Calvin cycle to make food are
A) ATP and O2
B) NADPH and ATP
C) O2 and CO2
D) ATP and H2O
E) NADPH and H2O

Answer 1

1. Option A

Cell division

2. Option A

both plants must close their stomates to retain water. But a C4 plant can still make food with CO2 provided by a stored C4 compound

3. Option C

A chromosome pair within a diploid cell.

4. Option B

NADPH and ATP