Question 1

The energy released from a glucose molecule during fermentation is only a fraction of the energy released during aerobic respiration.

Accepted Answer

A) True 
 B)False  True

Question 2

The energy "currency" of the cell is

Accepted Answer

A)  NAD+. 
B)  water. 
C)  FADH2. 
D)  ATP. 
E)  glucose. 
A)  NAD+. 
B)  water. 
C)  FADH2. 
D)  ATP. 
E)  glucose. D

Question 3

Photooxidation primarily involves the

Accepted Answer

A)  conversion of oxygen to ozone by light. 
B)  conversion of light to oxygen. 
C)  destruction of chlorophyll by light. 
D)  respiration of sugar. 
E)  conduction of food from sinks to sources. 
A)  conversion of oxygen to ozone by light. 
B)  conversion of light to oxygen. 
C)  destruction of chlorophyll by light. 
D)  respiration of sugar. 
E)  conduction of food from sinks to sources. C

Question 4

Hydroponically grown plants are grown in a nutrient solution in which air is bubbled. Why is bubbling of air through the solution needed?

Accepted Answer

A)  Without the air, the solution would become so hot that the enzymes would denature. 
B)  Bubbling of air through the solution allows soil microbes to thrive. 
C)  Water and nutrient solutions don't have enough oxygen to sustain aerobic respiration. 
D)  The bubbling solution increases the relative humidity within the plant chamber which is needed for plant growth. 
E)  Bubbling of air in the solution is not really needed; it's just what is done. 
A)  Without the air, the solution would become so hot that the enzymes would denature. 
B)  Bubbling of air through the solution allows soil microbes to thrive. 
C)  Water and nutrient solutions don't have enough oxygen to sustain aerobic respiration. 
D)  The bubbling solution increases the relative humidity within the plant chamber which is needed for plant growth. 
E)  Bubbling of air in the solution is not really needed; it's just what is done.

Question 5

Photosynthetic light independent reactions can take place in the light.

Accepted Answer

A) True 
 B)False

Question 6

Photophosphorylation refers to ________.

Accepted Answer

A)  removal of a proton from a phosphate group 
B)  use of light energy to directly add a phosphate group to ADP to form ATP 
C)  use of light energy to create a proton gradient which, in turn, is used to add a phosphate group to ADP to form ATP 
D)  removal of a phosphate group from ATP to form ADP 
E)  the light independent reactions of photosynthesis 
A)  removal of a proton from a phosphate group 
B)  use of light energy to directly add a phosphate group to ADP to form ATP 
C)  use of light energy to create a proton gradient which, in turn, is used to add a phosphate group to ADP to form ATP 
D)  removal of a phosphate group from ATP to form ADP 
E)  the light independent reactions of photosynthesis

Question 7

Photosystem pigments that function in gathering and passing light to reaction-center molecules are called

Accepted Answer

A)  reaction-center pigments. 
B)  phosphorescent pigments. 
C)  antenna pigments. 
D)  carotene pigments. 
E)  700 pigments. 
A)  reaction-center pigments. 
B)  phosphorescent pigments. 
C)  antenna pigments. 
D)  carotene pigments. 
E)  700 pigments.

Question 8

In the process of photosynthesis, which molecule becomes reduced?

Accepted Answer

A)  CO2 
B)  H20 
C)  CH2O 
D)  O2 
E)  C6H12O6 
A)  CO2 
B)  H20 
C)  CH2O 
D)  O2 
E)  C6H12O6

Question 9

NADPH transports ________ and ________ from light dependent to light independent photosynthetic reactions.

Accepted Answer

A)  water; carbon dioxide 
B)  phosphate group; oxygen 
C)  photons; carbon dioxide 
D)  hydrogen ions; electrons 
E)  iron; copper 
A)  water; carbon dioxide 
B)  phosphate group; oxygen 
C)  photons; carbon dioxide 
D)  hydrogen ions; electrons 
E)  iron; copper

Question 10

CAM photosynthesis is best known in tropical plants.

Accepted Answer

A) True 
 B)False

Question 11

An increase in ________ would theoretically increase photosynthesis.

Accepted Answer

A)  CO2 
B)  nitrate 
C)  oxygen 
D)  sulphur dioxide 
E)  carbon monoxide 
A)  CO2 
B)  nitrate 
C)  oxygen 
D)  sulphur dioxide 
E)  carbon monoxide

Question 12

A photosynthetic unit consists of a molecule of chlorophyll a and a molecule of chlorophyll b.

Accepted Answer

A) True 
 B)False

Question 13

During the light independent reactions, what plants produce oxaloacetic acid in mesophyll cells and phosphoglyceric acid (PGA) in the bundle sheath cells?

Accepted Answer

A)  ferredoxin plants 
B)  oxalis plants 
C)  CAM plants 
D)  C4 plants 
E)  C3 plants 
A)  ferredoxin plants 
B)  oxalis plants 
C)  CAM plants 
D)  C4 plants 
E)  C3 plants

Question 14

Fermentation in plants and yeast terminates with the formation of

Accepted Answer

A)  ATP. 
B)  NADPH. 
C)  ethyl alcohol. 
D)  lactic acid. 
E)  FADH2. 
A)  ATP. 
B)  NADPH. 
C)  ethyl alcohol. 
D)  lactic acid. 
E)  FADH2.

Question 15

Photosynthesis is an example of a/an ________ set of chemical reactions in plants.

Accepted Answer

A)  catabolic 
B)  energy releasing reactions in plant cells 
C)  anabolic 
D)  light-releasing 
E)  mitochondrial-based 
A)  catabolic 
B)  energy releasing reactions in plant cells 
C)  anabolic 
D)  light-releasing 
E)  mitochondrial-based

Question 16

The splitting of water molecules on the inside of thylakoid membranes during photosynthesis is called

Accepted Answer

A)  photophosphorylation. 
B)  photolysis. 
C)  chemiosmosis. 
D)  uncoupling. 
E)  plastocyanization. 
A)  photophosphorylation. 
B)  photolysis. 
C)  chemiosmosis. 
D)  uncoupling. 
E)  plastocyanization.

Question 17

The Calvin cycle is also called the

Accepted Answer

A)  3-carbon pathway. 
B)  4-carbon pathway. 
C)  5-carbon pathway. 
D)  6-carbon pathway. 
E)  7-carbon pathway. 
A)  3-carbon pathway. 
B)  4-carbon pathway. 
C)  5-carbon pathway. 
D)  6-carbon pathway. 
E)  7-carbon pathway.

Question 18

Which of the following is/are found in C4 plants?

Accepted Answer

A)  large chloroplasts with numerous starch grains 
B)  high concentrations of PEP carboxylase in mesophyll cells 
C)  higher optimum temperatures for photosynthesis than C3 plants 
D)  small chloroplasts with well-developed grana 
E)  All of these answers are correct. 
A)  large chloroplasts with numerous starch grains 
B)  high concentrations of PEP carboxylase in mesophyll cells 
C)  higher optimum temperatures for photosynthesis than C3 plants 
D)  small chloroplasts with well-developed grana 
E)  All of these answers are correct.

Question 19

Digestion nearly always involves hydrolysis.

Accepted Answer

A) True 
 B)False

Question 20

CAM photosynthesis occurs mostly in

Accepted Answer

A)  aquatic plants. 
B)  arctic plants. 
C)  temperate forest plants. 
D)  tropical rain forest plants. 
E)  cacti and succulents. 
A)  aquatic plants. 
B)  arctic plants. 
C)  temperate forest plants. 
D)  tropical rain forest plants. 
E)  cacti and succulents.

Exam 10: Plant Metabolism

The energy released from a glucose molecule during fermentation is only a fraction of the energy released during aerobic respiration.

The energy "currency" of the cell is

Photooxidation primarily involves the

Hydroponically grown plants are grown in a nutrient solution in which air is bubbled. Why is bubbling of air through the solution needed?

Photosynthetic light independent reactions can take place in the light.

Photophosphorylation refers to ________.

Photosystem pigments that function in gathering and passing light to reaction-center molecules are called

In the process of photosynthesis, which molecule becomes reduced?

NADPH transports ________ and ________ from light dependent to light independent photosynthetic reactions.

CAM photosynthesis is best known in tropical plants.

An increase in ________ would theoretically increase photosynthesis.

A photosynthetic unit consists of a molecule of chlorophyll a and a molecule of chlorophyll b.

During the light independent reactions, what plants produce oxaloacetic acid in mesophyll cells and phosphoglyceric acid (PGA) in the bundle sheath cells?

Fermentation in plants and yeast terminates with the formation of

Photosynthesis is an example of a/an ________ set of chemical reactions in plants.

The splitting of water molecules on the inside of thylakoid membranes during photosynthesis is called

The Calvin cycle is also called the

Which of the following is/are found in C4 plants?

Digestion nearly always involves hydrolysis.

CAM photosynthesis occurs mostly in

What Is Plant Biology

The Nature of Life

Cells

Tissues

Roots and Soils

Stems

Leaves

Flowers, Fruits, and Seeds

Water in Plants

Growth

Meiosis and Alternation of Generation

Genetics

Plant Breeding and Propagation

Evolution

Plant Names and Classification

Domain Kingdom Bacteria, Domain Kingdom Archaea, and Viruses

Kingdom Protista

Kingdom Fungi

Introduction to the Plant Kingdom: Bryophytes

The Seedless Vascular Plants - Ferns and Their Relatives

Introduction to Seed Plants: Gymnosperms

Seed Plants: Angiosperms

Flowering Plants and Civilization

Ecology

Biomes

Filters

NADPH transports and from light dependent to light independent photosynthetic reactions.

Which of the following is/are found in C₄ plants?