Organisms that cannot make their own food and must obtain energy from external sources are called
hetrotrophs
100
Which chemical is an electron carrier molecule?
a. H2O
b. carbon dioxide
c. NADP+
d. Oxygen
c.
100
The Calvin cycle takes place in the
stroma
100
Cellular respiration releases energy by breaking down
food molcules
100
Which organism is NOT likely to carry out cellular respiration?
bacteria
200
Which of the following organisms is a heterotroph?
a. Mushroom
b. Alga
c. Wheat
d. Sunflower
a.
200
Is this statement true or false:
A stroma contains a thylakoid.
false
200
What is a product of the Calvin cycle?
high-energy sugars
200
If you continue to increase the intensity of light that a plant receives, what happens?
The rate of photosynthesis increases and then levels off.
200
Glycolysis provides a cell with a net gain of how many ATP molecules?
2
300
Most plants appear green because chlorophyll...
does not absorb green light.
300
When NADP+ accepts and holds two high-energy electrons, what else gets bonded to the molecule as part of the reaction?
a water molecule
300
Where do the light-dependent reactions take place?
in the stroma of the chloroplast
300
Imagine that y-axis of each graph in Figure 8–6 describes the rate of photosynthesis. Which of the graphs represents the effect of temperature on the rate of photosynthesis?
c.
300
Unlike photosynthesis, cellular respiration occurs in
all eukaryotic cells.
400
What happens during photosynthesis?
plants produce ATP
400
A student is collecting the gas given off from a plant in bright sunlight at a temperature of 27°C. The gas being collected is probably
oxygen
400
What are the products of the light-dependent reactions?
ATP, carbon dioxide gas, and NADPH
400
Imagine that y-axis of each graph in Figure 8–6 describes the rate of photosynthesis. Which of the graphs represents the effect of light intensity on the rate of photosynthesis?
a.
400
Which of the following is an electron carrier that plays a role in cellular respiration?
NAD+
500
A granum is a
stack of thylakoids
500
Why are electron carriers needed for transporting electrons from one part of the chloroplast to another?
High-energy electrons are highly reactive.
500
What action contributes to the inside of the thylakoid membrane becoming positively charged during the light-dependent reactions?
H+ ions are released as water splits
500
What is the correct equation for cellular respiration?