Question 1

The first stable compound produced from CO2 in the light-independent reaction is ____.

Accepted Answer

A)  phosphoglycerate (PG
A)  
B)  ribulose bisphosphate (RuBP) 
C)  phosphoglyceraldehyde (PGAL) 
D)  O2 
E)  NADP+ 
A)  phosphoglycerate (PG
A)  
B)  ribulose bisphosphate (RuBP) 
C)  phosphoglyceraldehyde (PGAL) 
D)  O2 
E)  NADP+

Question 2

Classification. The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statements with reference to these five processes.
- This carbon-fixing system uses CO2 from inside the plant,and precedes the Calvin-Benson cycle.

Accepted Answer

A) Light-dependent reactions 
B) CAM pathway 
C) Carbon fixation 
D) Calvin-Benson cycle 
E) C4 pathway 
A) Light-dependent reactions 
B) CAM pathway 
C) Carbon fixation 
D) Calvin-Benson cycle 
E) C4 pathway

Question 3

Which statement best describes an electron transfer chain?

Accepted Answer

A)  It generates energy from carbohydrates. 
B)  It is used by cells to dispose of excess electrons. 
C)  It utilizes ATP to synthesize nutrients. 
D)  It transfers energy, stepwise, from one compound to another. 
E)  It requires activation by oxygen. 
A)  It generates energy from carbohydrates. 
B)  It is used by cells to dispose of excess electrons. 
C)  It utilizes ATP to synthesize nutrients. 
D)  It transfers energy, stepwise, from one compound to another. 
E)  It requires activation by oxygen.

Question 4

Matching. Choose the one most appropriate description.
-The formation of glucose

Accepted Answer

A) Incorporation of CO2 into an organic molecule 
B) Uses ATP and NADPH 
C) Uses two PGAL 
D) Produces ATP and NADPH 
E) Uses an electron transfer chain to produce ATP, but does not produce NADPH or O2 
A) Incorporation of CO2 into an organic molecule 
B) Uses ATP and NADPH 
C) Uses two PGAL 
D) Produces ATP and NADPH 
E) Uses an electron transfer chain to produce ATP, but does not produce NADPH or O2

Question 5

Consider the Calvin-Benson cycle and the noncyclic photosynthetic pathway.Why is the cyclic pathway so important?

Accepted Answer

The Calvin-Benson cycle uses 18 ATP and

Question 6

Classification. The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statements with reference to these five processes.
-This yields NADPH as well as ATP.

Accepted Answer

A) Light-dependent reactions 
B) CAM pathway 
C) Carbon fixation 
D) Calvin-Benson cycle 
E) C4 pathway 
A) Light-dependent reactions 
B) CAM pathway 
C) Carbon fixation 
D) Calvin-Benson cycle 
E) C4 pathway

Question 7

The two photosystems of light-dependent reactions are designated ____.

Accepted Answer

A)  type 1 and type 2 
B)  type I and type II 
C)  photosystem A and photosystem B 
D)  photosystem 680 and photosystem 700 
E)  photosystem I and photosystem II 
A)  type 1 and type 2 
B)  type I and type II 
C)  photosystem A and photosystem B 
D)  photosystem 680 and photosystem 700 
E)  photosystem I and photosystem II

Question 8

Matching. Choose the one most appropriate description.
-The PGA to PGAL conversion

Accepted Answer

A) Incorporation of CO2 into an organic molecule 
B) Uses ATP and NADPH 
C) Uses two PGAL 
D) Produces ATP and NADPH 
E) Uses an electron transfer chain to produce ATP, but does not produce NADPH or O2 
A) Incorporation of CO2 into an organic molecule 
B) Uses ATP and NADPH 
C) Uses two PGAL 
D) Produces ATP and NADPH 
E) Uses an electron transfer chain to produce ATP, but does not produce NADPH or O2

Question 9

Classification. The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statements with reference to these five processes.
-This is a carbon-fixing system that separates two carbon fixations into night and day activities.

Accepted Answer

A) Light-dependent reactions 
B) CAM pathway 
C) Carbon fixation 
D) Calvin-Benson cycle 
E) C4 pathway 
A) Light-dependent reactions 
B) CAM pathway 
C) Carbon fixation 
D) Calvin-Benson cycle 
E) C4 pathway

Question 10

The ____ a photon's wavelength,the ____ its energy.

Accepted Answer

A)  shorter; greater 
B)  longer; greater 
C)  shorter; less 
D)  longer; more variable 
E)  shorter; more variable 
A)  shorter; greater 
B)  longer; greater 
C)  shorter; less 
D)  longer; more variable 
E)  shorter; more variable

Question 11

Sugars are formed in the chloroplasts ____.

Accepted Answer

A)  on the outer membrane 
B)  on the inner membrane 
C)  in the thylakoid compartment 
D)  in the stroma 
E)  within the thylakoid membrane 
A)  on the outer membrane 
B)  on the inner membrane 
C)  in the thylakoid compartment 
D)  in the stroma 
E)  within the thylakoid membrane

Question 12

The electrons for photosynthesis come from ____.

Accepted Answer

A)  ATP 
B)  electrolytes 
C)  NADP+ 
D)  chlorophyll a 
E)  H2O 
A)  ATP 
B)  electrolytes 
C)  NADP+ 
D)  chlorophyll a 
E)  H2O

Question 13

Both C4 and CAM plants have modified carbon fixation.How do they each perform carbon fixation and what is the benefit of each of these types of carbon fixation?

Accepted Answer

C4 plants have spatially separated carbo

Question 14

Matching. Choose the one most appropriate description.
-Noncyclic pathway of ATP formation

Accepted Answer

A) Incorporation of CO2 into an organic molecule 
B) Uses ATP and NADPH 
C) Uses two PGAL 
D) Produces ATP and NADPH 
E) Uses an electron transfer chain to produce ATP, but does not produce NADPH or O2 
A) Incorporation of CO2 into an organic molecule 
B) Uses ATP and NADPH 
C) Uses two PGAL 
D) Produces ATP and NADPH 
E) Uses an electron transfer chain to produce ATP, but does not produce NADPH or O2

Question 15

Matching. Choose the one most appropriate description.
-Carbon fixation

Accepted Answer

A) Incorporation of CO2 into an organic molecule 
B) Uses ATP and NADPH 
C) Uses two PGAL 
D) Produces ATP and NADPH 
E) Uses an electron transfer chain to produce ATP, but does not produce NADPH or O2 
A) Incorporation of CO2 into an organic molecule 
B) Uses ATP and NADPH 
C) Uses two PGAL 
D) Produces ATP and NADPH 
E) Uses an electron transfer chain to produce ATP, but does not produce NADPH or O2

Question 16

Classification. The five reactions listed below occur during the noncyclic pathway of ATP formation. Use them to respond to the following statements.
-When light energy is absorbed by a leaf,this will be the first result.

Accepted Answer

A) Reduction of NADP+ 
B) Phosphorylation of ADP 
C) Photolysis of water 
D) Excitation of chlorophyll 
E) Reduction of chlorophyll 
A) Reduction of NADP+ 
B) Phosphorylation of ADP 
C) Photolysis of water 
D) Excitation of chlorophyll 
E) Reduction of chlorophyll

Question 17

Which of the following has the most stored energy?

Accepted Answer

A)  Phosphoglycerate (PG
A)  
B)  Ribulose bisphosphate (RuBP) 
C)  Phosphoglyceraldehyde (PGAL) 
D)  Glucose 
E)  Rubisco 
A)  Phosphoglycerate (PG
A)  
B)  Ribulose bisphosphate (RuBP) 
C)  Phosphoglyceraldehyde (PGAL) 
D)  Glucose 
E)  Rubisco

Question 18

Figure 6.5B

-Refer to the figure above illustrating the results from Engelmann's investigation.According to the figure,the most effective wavelength for photosynthesis is revealed by algae exposed to ____ nanometers.

Accepted Answer

A)  680 
B)  700 
C)  400 
D)  425 
E)  550 
A)  680 
B)  700 
C)  400 
D)  425 
E)  550

Question 19

Matching. Match the pigment with its relationship to sunlight.
-____ is responsible for red color in cyanobacteria.

Accepted Answer

A) Chlorophyll b 
B) Chlorophyll a 
C) Phycoerythrobilin 
D) Phycocyanobilin 
E) Beta-carotene 
A) Chlorophyll b 
B) Chlorophyll a 
C) Phycoerythrobilin 
D) Phycocyanobilin 
E) Beta-carotene

Question 20

In the electromagnetic spectrum,____.

Accepted Answer

A)  infrared energy has the shortest wavelength 
B)  infrared radiation has more energy than red radiation 
C)  visible light has more energy than ultraviolet radiation 
D)  near-infrared radiation provides the energy for photosynthesis 
E)  visible light provides the energy for photosynthesis 
A)  infrared energy has the shortest wavelength 
B)  infrared radiation has more energy than red radiation 
C)  visible light has more energy than ultraviolet radiation 
D)  near-infrared radiation provides the energy for photosynthesis 
E)  visible light provides the energy for photosynthesis

Exam 6: Where it Starts—Photosynthesis

The first stable compound produced from CO2 in the light-independent reaction is ____.

Classification. The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statements with reference to these five processes. - This carbon-fixing system uses CO2 from inside the plant,and precedes the Calvin-Benson cycle.

Which statement best describes an electron transfer chain?

Matching. Choose the one most appropriate description. -The formation of glucose

Consider the Calvin-Benson cycle and the noncyclic photosynthetic pathway.Why is the cyclic pathway so important?

Classification. The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statements with reference to these five processes. -This yields NADPH as well as ATP.

The two photosystems of light-dependent reactions are designated ____.

Matching. Choose the one most appropriate description. -The PGA to PGAL conversion

Classification. The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statements with reference to these five processes. -This is a carbon-fixing system that separates two carbon fixations into night and day activities.

The ____ a photon's wavelength,the ____ its energy.

Sugars are formed in the chloroplasts ____.

The electrons for photosynthesis come from ____.

Both C4 and CAM plants have modified carbon fixation.How do they each perform carbon fixation and what is the benefit of each of these types of carbon fixation?

Matching. Choose the one most appropriate description. -Noncyclic pathway of ATP formation

Matching. Choose the one most appropriate description. -Carbon fixation

Classification. The five reactions listed below occur during the noncyclic pathway of ATP formation. Use them to respond to the following statements. -When light energy is absorbed by a leaf,this will be the first result.

Which of the following has the most stored energy?

Figure 6.5B -Refer to the figure above illustrating the results from Engelmann's investigation.According to the figure,the most effective wavelength for photosynthesis is revealed by algae exposed to ____ nanometers.

Matching. Match the pigment with its relationship to sunlight. -____ is responsible for red color in cyanobacteria.

In the electromagnetic spectrum,____.

Invitation to Biology

Life's Chemical Bases

Molecules of Life

Cell Structure

Ground Rules of Metabolism

How Cells Release Chemical Energy

DNA Structure and Function

From DNA to Protein

Control of Gene Expression

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Studying and Manipulating Genomes

Evidence of Evolution

Processes of Evolution

Organizing Information about Species

Life's Origin and Early Evolution

Viruses, Bacteria, and Archaea

Protists: The Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution: The Invertebrates

Animal Evolution: The Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive System

Animal Development

Animal Behavior

Population Ecology

Community Ecology

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters

The first stable compound produced from CO₂ in the light-independent reaction is ____.

Classification. The processes listed below represent major chemical pathways in photosynthesis. Respond to the following statements with reference to these five processes. - This carbon-fixing system uses CO₂ from inside the plant,and precedes the Calvin-Benson cycle.

The a photon's wavelength,the its energy.