TEST: FOOD AND ENERGY
For the following multiple-choice questions, answer 18 out of 20 questions.
1. A producer in a food chain begins with 400 energy units. How many unit of energy can be expected
to reach the tertiary consumer?
a. 40 energy units
b. 4 energy unit
c. .4 energy units
d. .04 energy units
e. None of the above.
2. Blue-green algae are bacteria that make their own food using sunlight. Which of the following
statements is TRUE about these algae?
a. They are heterotrophs and producers.
b. They are autotrophs and consumers.
c. They are autotrophs and producers.
d. They are heterotrophs and consumers.
e. None of the above.
3. Which of the following lists has the terms ranked in order from smallest to largest?
a. Organism; ecosystem; population; community; biome; biosphere.
b. Organism; population; community; ecosystem; biome; biosphere.
c. Organism; biome; ecosystem; population; community; biosphere.
d. Organism; community; ecosystem; population; biome; biosphere.
e. None of the above.
4. Which of the following statements is true about ATP?
a. ATP stands for adenosine triphosphate and serves as an energy molecule in the cell.
b. ATP stands for adenosine diphosphate and serves as an energy molecule in the cell.
c. ATP has greater potential and kinetic energy than ADP.
d. ADP has greater potential and kinetic energy than ATP.
e. Both A and C.
f. Both B and D.
5. ADP is recycled into ATP in a process called:
a. Respiration
b. Photosynthesis
c. Transpiration
d. Perspiration
e. Digestion
6. An athlete eats a large breakfast in the morning and then goes for a run in the afternoon. Which of
the following statements is true about that athlete’s energy needs?
a. The athlete consumed a large amount of kinetic energy and converted it to potential energy
by running.
b. The athlete consumed a large amount of potential energy and converted it to kinetic energy
by running.
c. If the athlete had eaten a large breakfast, but not gone running, the food might have been
stored as kinetic energy in the form of fat.
d. If the athlete had eaten a large breakfast, but not gone running, the food might have been
stored as potential energy in the form of fat.
e. Both A and C.
f. Both B and D.
7. Catalase breaks down hydrogen peroxide (H2O2) into H2O and O2. Catalase in your liver breaks
down 10 molecules of hydrogen peroxide in 30 seconds. Which of the following describes the rate
of the enzyme?
a. 1 H2O2 broken every 3 seconds.
b. 2 H2O2 broken every 3 seconds.
c. 3 H2O2 broken per second.
d. 2 H2O2 broken per second.
e. 1 H2O2 broken per second.
8. Which of the follow statements is FALSE concerning enzymes?
a. Enzymes are biological catalysts.
b. Enzymes slow down the rate of chemical reactions.
c. Most enzymes are proteins.
d. Enzymes function best at certain temperatures.
e. All of the above statements are TRUE concerning enzymes.
f. None of the above statements are true concerning enzymes.
9. An enzyme found in human saliva breaks down carbohydrates into sugars. Based on the graph
below, what can we conclude about the activity of this enzyme?
a. The enzyme functions best at temperatures below 30oC
(86oF).
b. The enzyme functions best at temperatures above 50oC
(122oF).
c. The enzyme functions best at temperatures between
30oC and 50oC.
d. All of the above statements are true.
e. Not enough information is given to reach a conclusion
about enzyme function.
Pigment Band (by
color)
Red
Orange
Green
Yellow
Distance Traveled by
Pigment (cm)
2
3
7
8
Distance Traveled by
Alcohol (cm)
10
10
10
10
10. From the above data, which of the following lists the rf values of each color band correctly?
a. Red - .8; orange - .7; green - .3; yellow - .2.
b. Red - .2; orange - .3; green - .7; yellow - .8.
c. Red – 2; orange - 3; green - 7; yellow – 8.
d. Red – 20, orange – 30; green – 70; yellow – 80.
e. All rf values for those color bands equal 10.
11. Which of the following is a TRUE statement about the green color band?
a. The green color is caused by the anthocyanin pigment absorbing the green light and
reflecting all the other colors of light back.
b. The green color is caused by the anthocyanin pigment absorbing all colors of light but green
and reflecting green back.
c. The green color is caused by the chlorophyll pigment absorbing green light and reflecting
all the other colors of light back.
d. The green color is caused by chlorophyll pigment absorbing all colors of light but green and
reflecting green back.
e. None of the above is a true statement about the green pigment.
12. What is the function of stomata as they relate to photosynthesis?
a. Stomata let in CO2 for use in the Calvin Cycle.
b. Stomata let out O2 made during the light-dependent reactions.
c. Stomata regulate water loss, which is needed during the light-dependent reactions.
d. Stomata are usually on the undersides of the leaf to prevent additional water loss.
e. All of the above.
13. Which of the following is a TRUE statement about the reactions of photosynthesis?
a. The light-dependent reactions use CO2 and do not require light; the light-independent
reactions use H2O and require light.
b. The light-dependent reactions use H2O and require light; the light-independent reactions use
CO2 and do not require light.
c. The light-independent reactions use glucose to generate CO2.
d. The light-independent reactions use CO2 to generate glucose.
e. Both A and C.
f. Both B and D.
14. What is the name of they process by which oxygen from the air gets into the capillaries wrapped
around the alveoli in your lungs? What is the process by which carbon dioxide from the capillaries
wrapped around the alveoli in your lungs gets into the air in your lungs?
a. Diffusion; active transport.
b. Diffusion; diffusion.
c. Diffusion; transpiration.
d. Active transport; diffusion.
e. Transpiration; diffusion.
15. Which of the following best describes gas exchange in plants and animals?
a. Plants take in CO2 through their stomata; animals take in O2 through their digestive
systems.
b. Plants take in CO2 through their stomata; animals take in O2 through their respiratory
systems.
c. Plants take in CO2 through their xylem; animals take in O2 through their phloem.
d. Plants take in CO2 through their palisades layer; animals take in O2 from water.
16. Which of the following statements is FALSE about the relationship between body systems and
aerobic respiration?
a. The respiratory and circulatory systems deliver the oxygen to cells needed for aerobic
respiration.
b. The respiratory and circulatory systems remove the CO2 in cells produced as a waste
product of aerobic respiration.
c. The digestive system removes the CO2 in cells produced as a waste product of aerobic
respiration.
d. The digestive system processes the food energy needed for aerobic respiration and delivers
it to the circulatory system, which delivers it to cells.
e. All of the above are TRUE statements.
17. Which of the following is a TRUE statement about the role of enzymes in digestion?
a. Enzymes in your saliva break down carbohydrates.
b. Enzymes in your stomach break down proteins.
c. Enzymes excreted into the small intestine break carbohydrates, proteins, and fats.
d. Enzymes in your stomach need to work in an acidic environment.
e. All of the above are true statements about enzymes.
18. A certain kind of bacteria usually does not perform respiration in the presence of oxygen. A
researcher injects mitochondria into the bacteria. When placed in a high oxygen environment, the
bacteria now produce CO2. What can be concluded from this experiment?
a. The bacteria were performing AEROBIC respiration BOTH before and after being injected
with mitochondria.
b. The bacteria were performing ANAEROBIC respiration BOTH before and after being
injected with mitochondria.
c. The bacteria were performing ANAEROBIC respiration before being injected with
mitochondria; the performed AEROBIC respiration after being injected with mitochondria.
d. The bacteria were performing AEROBIC respiration before being injected with
mitochondria; the performed ANAEROBIC respiration after being injected with
mitochondria.
19. A person chews food, which is then digested by enzymes in the stomach and small intestine. What
is true about the food as the person eats and digests it?
a. Both chewing and enzymes cause physical changes.
b. Both chewing and enzymes cause chemical reactions.
c. Chewing causes a chemical reaction; enzymes assist in physical change.
d. Chewing causes a physical change; enzymes assist in chemical reactions.
20. What is the main function of aerobic respiration?
a. To convert food energy into chemical energy in the form of ATP.
b. To convert light energy into food energy in the form of ATP.
c. To convert food energy into light energy in the form of photons.
d. To convert chemical energy into food energy in the form of glucose.
e. None of the above accurately describes the function of aerobic respiration.
21. EXTRA CREDIT (2 points) Being chased by a bear is:
a. Scarier than this test.
b. As scary as this test.
c. Less scary than this test.
d. Bears are mostly herbivores and not interested in eating people.
e. Except starving bears.