Question 1

Figuer:
Examine this image, showing an electron transport chain in photosynthesis.  
-What is released at each step in an electron transport chain?

Accepted Answer

A)  ultraviolet wavelengths 
B)  electrons 
C)  energy 
D)  photons 
A)  ultraviolet wavelengths 
B)  electrons 
C)  energy 
D)  photons C

Question 2

In plant cells,a membrane studded with photosynthetic pigments in plant cells is the

Accepted Answer

A)  thylakoid. 
B)  stroma. 
C)  chlorophyll. 
D)  chloroplast. 
E)  granum. 
A)  thylakoid. 
B)  stroma. 
C)  chlorophyll. 
D)  chloroplast. 
E)  granum. A

Question 3

When chlorophyll a absorbs light,electrons are "excited" and ejected from the chlorophyll a molecule.

Accepted Answer

A) True 
 B)False  True

Question 4

Photosynthesis is

Accepted Answer

A)  not an oxidation-reduction reaction. 
B)  an energy transfer process that produces glucose and oxygen. 
C)  a chemical process not dependent on chlorophyll. 
D)  None of the answer choices are correct. 
E)  a set of reactions that produces water and carbon dioxide. 
A)  not an oxidation-reduction reaction. 
B)  an energy transfer process that produces glucose and oxygen. 
C)  a chemical process not dependent on chlorophyll. 
D)  None of the answer choices are correct. 
E)  a set of reactions that produces water and carbon dioxide.

Question 5

Identify the incorrect pairing of photosynthetic carbon pathways and the type of habitat in which they live.

Accepted Answer

A)  CAM pathway plants are found in desert habitats. 
B)  All of these correctly match the pathway and the habitat. 
C)  CS1U1B14S1U1B0 pathway plants are found in hot, open, grassy areas.  
D)  CS1U1B13S1U1B0 pathway plants are found in most habitat areas. 
A)  CAM pathway plants are found in desert habitats. 
B)  All of these correctly match the pathway and the habitat. 
C)  CS1U1B14S1U1B0 pathway plants are found in hot, open, grassy areas.  
D)  CS1U1B13S1U1B0 pathway plants are found in most habitat areas.

Question 6

For most lawn grasses to grow well in hot,dry weather,they must be watered so that their stomata will remain open for longer periods of time to let in O2.

Accepted Answer

A) True 
 B)False

Question 7

C4 plants and CAM plants fix carbon twice during the photosynthetic reactions.

Accepted Answer

A) True 
 B)False

Question 8

Which of these organisms can carry out photosynthesis?

Accepted Answer

A)  algae 
B)  cyanobacteria 
C)  plants, algae, and cyanobacteria 
D)  plants 
E)  a coral 
A)  algae 
B)  cyanobacteria 
C)  plants, algae, and cyanobacteria 
D)  plants 
E)  a coral

Question 9

Which of these groups represents organisms that are heterotrophs?

Accepted Answer

A)  microorganisms that harness solar energy, converting it to chemical energy 
B)  non-photosynthesizing bacteria, fungi, earthworms 
C)  all organisms that developed after photosynthesis 
D)  photosynthesizing bacteria, algae, ferns, pine trees 
A)  microorganisms that harness solar energy, converting it to chemical energy 
B)  non-photosynthesizing bacteria, fungi, earthworms 
C)  all organisms that developed after photosynthesis 
D)  photosynthesizing bacteria, algae, ferns, pine trees

Question 10

Which organism depends on photosynthesis for its life?

Accepted Answer

A)  All of the answer choices are correct. 
B)  a human 
C)  an oak tree 
D)  a coral 
E)  a sea slug 
A)  All of the answer choices are correct. 
B)  a human 
C)  an oak tree 
D)  a coral 
E)  a sea slug

Question 11

Plants require a lot of water for hydration,metabolism,homeostasis,and photosynthesis.How is water used in photosynthesis?

Accepted Answer

A)  to combine with NADP+ to form NADPH 
B)  as an electron donor in the photosystems 
C)  as a substrate for ATP synthase 
D)  as an electron acceptor in the electron transport chain 
E)  to combine with ADP forming ATP 
A)  to combine with NADP+ to form NADPH 
B)  as an electron donor in the photosystems 
C)  as a substrate for ATP synthase 
D)  as an electron acceptor in the electron transport chain 
E)  to combine with ADP forming ATP

Question 12

If a thylakoid is placed in a basic solution ATP synthesis will occur.How is this possible?

Accepted Answer

A)  An electron gradient is created by the difference in pH. 
B)  A proton gradient is created by the difference in pH. 
C)  ATP is formed spontaneously at low pH. 
D)  ATP cannot be broken down at low pH. 
E)  The carbon reactions are blocked in the thylakoid at high pH. 
A)  An electron gradient is created by the difference in pH. 
B)  A proton gradient is created by the difference in pH. 
C)  ATP is formed spontaneously at low pH. 
D)  ATP cannot be broken down at low pH. 
E)  The carbon reactions are blocked in the thylakoid at high pH.

Question 13

What is a product of the electron transport chain started by photosystem II?

Accepted Answer

A)  glucose 
B)  ADP 
C)  oxygen 
D)  water 
E)  NADPH 
A)  glucose 
B)  ADP 
C)  oxygen 
D)  water 
E)  NADPH

Question 14

In photosynthesis,the carbon in CO2 is being _____ to form glucose.

Accepted Answer

A)  reduced 
B)  broken down 
C)  oxidized 
D)  respired 
E)  energized 
A)  reduced 
B)  broken down 
C)  oxidized 
D)  respired 
E)  energized

Question 15

The sea slug Elysia chlorotica is a(n)

Accepted Answer

A)  heterotrophic plant. 
B)  heterotrophic animal. 
C)  heterotrophic protist. 
D)  autotrophic plant. 
E)  autotrophic protist. 
A)  heterotrophic plant. 
B)  heterotrophic animal. 
C)  heterotrophic protist. 
D)  autotrophic plant. 
E)  autotrophic protist.

Question 16

Examples of accessory pigments for photosynthesis are

Accepted Answer

A)  chlorophyll a and chlorophyll b. 
B)  mitochondria. 
C)  carotenoids, chlorophyll b, and chlorophyll a.. 
D)  chlorophyll a and carotenoids. 
E)  chlorophyll b and carotenoids 
A)  chlorophyll a and chlorophyll b. 
B)  mitochondria. 
C)  carotenoids, chlorophyll b, and chlorophyll a.. 
D)  chlorophyll a and carotenoids. 
E)  chlorophyll b and carotenoids

Question 17

How do C4 plants minimize photorespiration?

Accepted Answer

A)  The light reactions and carbon reactions occur in different cells, so carbon dioxide does not come into contact with rubisco. 
B)  Stomata are only opened at night, storing oxygen in malate. During the day the oxygen is released for photosynthesis. 
C)  Stomata are only opened at night, storing carbon dioxide in malate. During the day the carbon dioxide is released for photosynthesis. 
D)  The light reactions and carbon reactions occur in different cells, so oxygen does not come into contact with rubisco. 
A)  The light reactions and carbon reactions occur in different cells, so carbon dioxide does not come into contact with rubisco. 
B)  Stomata are only opened at night, storing oxygen in malate. During the day the oxygen is released for photosynthesis. 
C)  Stomata are only opened at night, storing carbon dioxide in malate. During the day the carbon dioxide is released for photosynthesis. 
D)  The light reactions and carbon reactions occur in different cells, so oxygen does not come into contact with rubisco.

Question 18

Combustion is an inorganic chemical reaction,with the net result of burning a log being a reverse reaction from photosynthesis.What products would be formed in burning a log?

Accepted Answer

A)  carbon dioxide and glucose 
B)  oxygen and carbon dioxide 
C)  oxygen and water 
D)  carbon dioxide and water 
E)  glucose and oxygen 
A)  carbon dioxide and glucose 
B)  oxygen and carbon dioxide 
C)  oxygen and water 
D)  carbon dioxide and water 
E)  glucose and oxygen

Question 19

Which plants keep their stomata open only at night?

Accepted Answer

A)  C4 
B)  C3 
C)  CAM 
A)  C4 
B)  C3 
C)  CAM

Question 20

The main organic product of photosynthesis is

Accepted Answer

A)  sunlight. 
B)  oxygen. 
C)  glucose. 
D)  carbon dioxide. 
E)  chlorophyll. 
A)  sunlight. 
B)  oxygen. 
C)  glucose. 
D)  carbon dioxide. 
E)  chlorophyll.

Exam 5: Photosynthesis

Figuer: Examine this image, showing an electron transport chain in photosynthesis. -What is released at each step in an electron transport chain?

In plant cells,a membrane studded with photosynthetic pigments in plant cells is the

When chlorophyll a absorbs light,electrons are "excited" and ejected from the chlorophyll a molecule.

Photosynthesis is

Identify the incorrect pairing of photosynthetic carbon pathways and the type of habitat in which they live.

For most lawn grasses to grow well in hot,dry weather,they must be watered so that their stomata will remain open for longer periods of time to let in O2.

C4 plants and CAM plants fix carbon twice during the photosynthetic reactions.

Which of these organisms can carry out photosynthesis?

Which of these groups represents organisms that are heterotrophs?

Which organism depends on photosynthesis for its life?

Plants require a lot of water for hydration,metabolism,homeostasis,and photosynthesis.How is water used in photosynthesis?

If a thylakoid is placed in a basic solution ATP synthesis will occur.How is this possible?

What is a product of the electron transport chain started by photosystem II?

In photosynthesis,the carbon in CO2 is being _____ to form glucose.

The sea slug Elysia chlorotica is a(n)

Examples of accessory pigments for photosynthesis are

How do C4 plants minimize photorespiration?

Combustion is an inorganic chemical reaction,with the net result of burning a log being a reverse reaction from photosynthesis.What products would be formed in burning a log?

Which plants keep their stomata open only at night?

The main organic product of photosynthesis is

The Scientific Study of Life

The Chemistry of Life

Cell Structure and Function

The Energy of Life

How Cells Release Energy

DNA Structure and Gene Function

DNA Replication, mitosis, and the Cell Cycle

Sexual Reproduction and Meiosis

Patterns of Inheritance

DNA Technology

The Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

The Origin and History of Life

Viruses

Bacteria and Archaea

Protists

Plants

Fungi

Animals

Plant Form and Function

Plant Nutrition and Transport

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

The Nervous System

The Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory System

The Respiratory System

Digestion and Nutrition

Regulation of Temperature and Body Fluids

The Immune System

Animal Reproduction and Development

Animal Behavior

Population Ecology

Communities and Ecosystems

Biomes

Preserving Biodiversity

Filters

For most lawn grasses to grow well in hot,dry weather,they must be watered so that their stomata will remain open for longer periods of time to let in O₂.

C₄ plants and CAM plants fix carbon twice during the photosynthetic reactions.

In photosynthesis,the carbon in CO₂ is being _____ to form glucose.

How do C₄ plants minimize photorespiration?