Question Set 2
Which statement about radiant energy from the sun is false?
Select one:
a. It is converted directly to chemical energy in plants.
b. It is the original source for the fuel we use in our cars and homes.
c. It can be converted directly to chemical energy by heterotrophs.
d. It is responsible for most of the warmth of our atmosphere. - answerc. It can be
converted directly to chemical energy by heterotrophs.
The biochemical pathway most commonly used by plants and chemosynthetic bacteria
to fix CO2in order to synthesize carbohydrates is
Select one:
a. glycolysis
b. the Calvin cycle
c. the Hatch‒Slack‒Kortschack pathway
d. the Krebs cycle - answerb. the Calvin cycle
In van Helmont's experiment measuring a growing tree, which possible energy source
for the tree's growth was he able to rule out?
Select one:
a. Oxygen
b. Water
c. Carbon dioxide
d. Soil - answerd. Soil
At approximately what light intensity level are the plants acclimatized to high-intensity
light photosynthesizing at twice the rate of those plants acclimatized to low-intensity
light?
Select one:
a. 100 μmol/m2/s
b. 300 μmol/m2/s
c. 600 μmol/m2/s
d. 1,000 μmol/m2/s - answerb. 300 μmol/m2/s
The _______ pathways, which provide high concentrations of CO2to the Calvin cycle,
substantially reduce photorespiration.
Select one:
a. C3 and C4 photosynthetic pathways
b. C4 photosynthetic and ATP pathways
Which statement about radiant energy from the sun is false?
Select one:
a. It is converted directly to chemical energy in plants.
b. It is the original source for the fuel we use in our cars and homes.
c. It can be converted directly to chemical energy by heterotrophs.
d. It is responsible for most of the warmth of our atmosphere. - answerc. It can be
converted directly to chemical energy by heterotrophs.
The biochemical pathway most commonly used by plants and chemosynthetic bacteria
to fix CO2in order to synthesize carbohydrates is
Select one:
a. glycolysis
b. the Calvin cycle
c. the Hatch‒Slack‒Kortschack pathway
d. the Krebs cycle - answerb. the Calvin cycle
In van Helmont's experiment measuring a growing tree, which possible energy source
for the tree's growth was he able to rule out?
Select one:
a. Oxygen
b. Water
c. Carbon dioxide
d. Soil - answerd. Soil
At approximately what light intensity level are the plants acclimatized to high-intensity
light photosynthesizing at twice the rate of those plants acclimatized to low-intensity
light?
Select one:
a. 100 μmol/m2/s
b. 300 μmol/m2/s
c. 600 μmol/m2/s
d. 1,000 μmol/m2/s - answerb. 300 μmol/m2/s
The _______ pathways, which provide high concentrations of CO2to the Calvin cycle,
substantially reduce photorespiration.
Select one:
a. C3 and C4 photosynthetic pathways
b. C4 photosynthetic and ATP pathways
