Question

unit 4 test: cell processes
name:
date:
id:

1. 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
a. oxygen.
b. atp.
c. carbon dioxide.
d. vaporized water.

1. photosynthesis uses sunlight to convert

water and carbon dioxide into
a. oxygen.
b. high - energy sugars.
c. atp and oxygen.
d. oxygen and high - energy
sugars.

1. which of the following are used in the

overall reactions of photosynthesis?
a. carbon dioxide
b. water
c. light
d. all of the above

1. most plants appear green because

chlorophyll
a. does not absorb green light.
b. reflects violet light.
c. absorbs green light.
d. none of the above

1. which of these is a product of cellular

respiration?
a. oxygen
b. water
c. glucose
d. all of the above

1. which of these processes takes place in

the cytoplasm of a cell?
a. glycolysis
b. electron transport
c. krebs cycle
d. all of the above

1. glycolysis provides a cell with a net gain

of
a. 2 atp molecules.
b. 4 atp molecules.
c. 18 atp molecules.
d. 36 atp molecules.

1. the two main types of fermentation are

called
a. alcoholic and aerobic.
b. aerobic and anaerobic.
c. alcoholic and anaerobic.
d. lactic acid and anaerobic.

1. how are cellular respiration and

photosynthesis opposite
processes?
a. photosynthesis releases
energy, and cellular respiration
stores energy.
b. photosynthesis removes carbon
dioxide from the atmosphere,
and cellular respiration puts it
back.
c. photosynthesis removes oxygen
from the atmosphere, and
cellular respiration puts it
back.
d. all of the above

1. which of the following types of

organisms do aerobic cellular
respiration?
a. autotrophs
b. both autotrophs and
heterotrophs
c. heterotrophs
d. neither autotrophs nor
heterotrophs

1. the products of photosynthesis are the

a. products of cellular respiration.
b. products of glycolysis.
c. reactants of cellular respiration.
d. reactants of fermentation.

1. organisms that cannot make their own

food and must obtain energy from
foods they eat are called
a. autotrophs.
b. heterotrophs.
c. thylakoids.
d. plants.

1. what is the correct equation for cellular

respiration?
a. o2 + c6h12o6→co2 + h2o
+ energy
b. o2 + c6h12o6+ energy→
co2 + h2o
c. co2 + h2o→o2 + c6h12o6
+ energy
d. co2 + h2o+ energy→o2 +
c6h12o6

1. what are the reactants in the equation

for cellular respiration?
a. oxygen and lactic acid

Explanation:

1. The gas given off from a plant in sunlight at 25°C is oxygen produced by photosynthesis.
2. Photosynthesis uses sunlight to convert water and carbon dioxide into high - energy sugars, oxygen and ATP.
3. Carbon dioxide, water and light are used in the overall reactions of photosynthesis.
4. Most plants appear green because chlorophyll does not absorb green light.
5. Water is a product of cellular respiration.
6. Glycolysis takes place in the cytoplasm of a cell.
7. Glycolysis provides a cell with a net gain of 2 ATP molecules.
8. The two main types of fermentation are alcoholic and lactic acid fermentation (not aerobic as aerobic is a type of respiration not fermentation).
9. Photosynthesis and cellular respiration are opposite processes as photosynthesis uses carbon dioxide and water to make glucose and oxygen while cellular respiration uses glucose and oxygen to make carbon dioxide and water.
10. Heterotrophs perform aerobic cellular respiration.
11. The products of photosynthesis are the reactants of cellular respiration.
12. Organisms that cannot make their own food are called heterotrophs.
13. The correct equation for cellular respiration is O₂ + C₆H₁₂O₆ → CO₂ + H₂O + Energy.
14. The reactants in the equation for cellular respiration are oxygen and glucose.

Answer:

1. a. oxygen
2. d. all of the above
3. d. all of the above
4. a. chlorophyll does not absorb green light
5. b. water
6. a. glycolysis
7. a. 2 ATP molecules
8. (no correct option shown in the provided choices as the correct ones are alcoholic and lactic - acid; if we assume a correction in the options, it would be the correct pair of those two)
9. a. Photosynthesis releases energy, and cellular respiration stores energy (this option seems to have a wrong description in the original question as the correct relationship is about reactants and products and energy conversion in the opposite way, but among the given options this is the one related to the concept)
10. c. heterotrophs
11. c. reactants of cellular respiration
12. b. heterotrophs
13. a. O₂ + C₆H₁₂O₆ → CO₂ + H₂O + Energy
14. (no correct option shown as the correct reactants are oxygen and glucose; if we assume options are modified, it would be the pair of oxygen and glucose)