Question

multiple choice questions

1. the diagram on the left shows the relationship between photosynthesis and cellular respiration and the organelles in which they occur. which statement describes how photosynthesis and cellular respiration are interrelated?

a. oxygen is produced during cellular respiration and stored during photosynthesis.
b. carbon dioxide and water released by cellular respiration are used in photosynthesis.
c. photosynthesis releases the energy that is stored during the process of cellular respiration.
d. glucose is used during cellular respiration to produce atp that is broken down during photosynthesis.

1. in the absence of oxygen, yeast cells undergo fermentation to produce

a. lactic acid. b. oxygen. c. glucose. d. ethyl alcohol

1. scientists have been investigating the change in atmospheric carbon - dioxide concentration since about 800 ad. a graph of atmospheric carbon - dioxide concentration over time is shown on the left. if the trend on the above graph continues, which of the following organisms would benefit?

a. the decrease in atmospheric co₂ would benefit the anaerobic cellular respiration of humans.
b. the increase in atmospheric co₂ would benefit the aerobic cellular respiration of cows.
c. the increase in atmospheric co₂ would benefit the photosynthesis of phytoplankton.
d. the decrease in atmospheric co₂ would benefit the reproduction of grasshoppers.

1. which statement accurately describes the way that adenosine triphosphate (atp) transfers energy within a cell?

a. atp molecules break up sugars such as glucose into energy - rich compounds like lactose.
b. atp molecules split carbon dioxide molecules, and the carbon is used as fuel by the cell.
c. atp molecules ionize oxygen molecules, which give up electrons that can then be used for energy.
d. an atp molecule reacts with water and loses a phosphate group, breaking a bond and releasing energy.

1. which of the following correctly compares the products of aerobic and anaerobic respiration?

a. aerobic respiration produces more than 30 atp per glucose molecule and either ethyl alcohol or lactic acid, while anaerobic respiration produces only 2 atp per glucose molecule.
b. aerobic respiration produces more than 30 atp per glucose molecule while anaerobic respiration produces only 2 atp per glucose molecule and either ethyl alcohol or lactic acid.
c. anaerobic respiration produces more than 30 atp per glucose molecule while aerobic respiration produces only 2 atp per glucose molecule and either ethyl alcohol or lactic acid.
d. anaerobic respiration produces more than 30 atp per glucose molecule and either ethyl alcohol or lactic acid, while aerobic respiration produces only 2 atp per glucose molecule.

1. what are the products of alcoholic fermentation?

a. lactic acid
b. ethanol and carbon dioxide
c. glucose and oxygen
d. glucose

Explanation:

1. Photosynthesis uses carbon - dioxide and water to produce glucose and oxygen, while cellular respiration uses glucose and oxygen to produce carbon - dioxide and water. So carbon - dioxide and water released by cellular respiration are used by photosynthesis.
2. In the absence of oxygen, yeast cells undergo alcoholic fermentation to produce ethyl alcohol.
3. Phytoplankton perform photosynthesis, and an increase in atmospheric CO₂ would benefit their photosynthesis as CO₂ is a raw material for photosynthesis.
4. ATP reacts with water and loses a phosphate group, breaking a bond and releasing energy for cellular processes.
5. Aerobic respiration produces more than 30 ATP per glucose molecule, while anaerobic respiration (fermentation) produces only 2 ATP per glucose molecule and either ethyl alcohol or lactic acid.
6. Alcoholic fermentation produces ethanol and carbon - dioxide.

Answer:

1. B
2. D
3. C
4. D
5. B
6. B