Question 1

One current area of research is to find a way to break down the cellulose from plant materials and use the resulting

Accepted Answer

A) starch. 
B) enzymes. 
C) proteins. 
D) sugars. 
E) combination of all of these. 
A) starch. 
B) enzymes. 
C) proteins. 
D) sugars. 
E) combination of all of these.

Question 2

The carbon dioxide acceptor in the Calvin-Benson cycle 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 3

Which of the following is NOT involved in the light-dependent reactions?

Accepted Answer

A) ATP 
B) thylakoids 
C) chlorophyll 
D) stroma 
E) water 
A) ATP 
B) thylakoids 
C) chlorophyll 
D) stroma 
E) water

Question 4

The best light to grow the alga in is __________, according to the figure.

Accepted Answer

A) blue-violet 
B) blue-green 
C) green-yellow 
D) yellow-orange 
E) orange-red 
A) blue-violet 
B) blue-green 
C) green-yellow 
D) yellow-orange 
E) orange-red

Question 5

Which of the following statements describes an electron transfer chain?

Accepted Answer

A) It generates energy from carbohydrates. 
B) Cells use it 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) Cells use it 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 6

Which is NOT TRUE about chemoautotrophs?

Accepted Answer

A) They were the first cells on earth. 
B) They thrived on oxygen. 
C) They used methane as a carbon source. 
D) Many became extinct with the arrival of photoautotrophs. 
E) They did not use solar energy to feed themselves. 
A) They were the first cells on earth. 
B) They thrived on oxygen. 
C) They used methane as a carbon source. 
D) Many became extinct with the arrival of photoautotrophs. 
E) They did not use solar energy to feed themselves.

Question 7

The electrons that are passed to NADP+ during the noncyclic pathway are obtained directly from __________ but ultimately from __________.

Accepted Answer

A) chlorophyll; water 
B) CO2; chlorophyll 
C) ATP; O2 
D) water; chlorophyll 
E) NADPH; chlorophyll 
A) chlorophyll; water 
B) CO2; chlorophyll 
C) ATP; O2 
D) water; chlorophyll 
E) NADPH; chlorophyll

Question 8

Which of the following occurs in the light-independent reactions of photosynthesis?

Accepted Answer

A) Water is broken down. 
B) Glucose is produced. 
C) Oxygen is released. 
D) NADP+ is reduced. 
E) ATP is produced. 
A) Water is broken down. 
B) Glucose is produced. 
C) Oxygen is released. 
D) NADP+ is reduced. 
E) ATP is produced.

Question 9

A high concentration of H+ in the thylakoid compartment provides energy for the __________ by__________.

Accepted Answer

A) breakdown of water; oxidation 
B) production of ATP; ATP synthesis 
C) reduction of NADP+; an electron transfer chain 
D) production of sugars; the light-independent reactions 
E) production of O2; photolysis 
A) breakdown of water; oxidation 
B) production of ATP; ATP synthesis 
C) reduction of NADP+; an electron transfer chain 
D) production of sugars; the light-independent reactions 
E) production of O2; photolysis

Question 10

In the noncyclic pathway,

Accepted Answer

A) there is a one-way flow of electrons from photosystem I to photosystem II. 
B) ATP alone is produced. 
C) hydrogen ions are pumped into the thylakoid compartment. 
D) NADP+ accepts only H+. 
E) H+ accumulates in the stroma. 
A) there is a one-way flow of electrons from photosystem I to photosystem II. 
B) ATP alone is produced. 
C) hydrogen ions are pumped into the thylakoid compartment. 
D) NADP+ accepts only H+. 
E) H+ accumulates in the stroma.

Question 11

Which of the following is NOT a fossil fuel?

Accepted Answer

A) wood 
B) coal 
C) petroleum 
D) natural gas 
E) all are fossil fuels 
A) wood 
B) coal 
C) petroleum 
D) natural gas 
E) all are fossil fuels

Question 12

The first stage of photosynthesis begins with

Accepted Answer

A) hydrolysis of water. 
B) breakdown of ATP. 
C) excitation of electrons. 
D) phosphorylation of ADP. 
E) synthesis of NADPH. 
A) hydrolysis of water. 
B) breakdown of ATP. 
C) excitation of electrons. 
D) phosphorylation of ADP. 
E) synthesis of NADPH.

Question 13

Which of the following statements about the electromagnetic spectrum is true?

Accepted Answer

A) Infrared energy is sufficient to produce ionization. 
B) Infrared radiation has more energy than red radiation. 
C) Visible light has more energy than ultraviolet radiation. 
D) Chlorophyll absorbs some visible wavelengths, but not all. 
E) Chloroplasts absorb all wavelengths of visible light equally. 
A) Infrared energy is sufficient to produce ionization. 
B) Infrared radiation has more energy than red radiation. 
C) Visible light has more energy than ultraviolet radiation. 
D) Chlorophyll absorbs some visible wavelengths, but not all. 
E) Chloroplasts absorb all wavelengths of visible light equally.

Question 14

All EXCEPT which of the following are present in both the light-dependent and light-independent reactions?

Accepted Answer

A) ATP 
B) NADPH 
C) ADP 
D) rubisco 
E) NADP+ 
A) ATP 
B) NADPH 
C) ADP 
D) rubisco 
E) NADP+

Question 15

All EXCEPT which of the following must be available for the light-independent reactions to occur?

Accepted Answer

A) carbon dioxide 
B) oxygen 
C) ribulose bisphosphate 
D) ATP and NADPH 
E) enzymes 
A) carbon dioxide 
B) oxygen 
C) ribulose bisphosphate 
D) ATP and NADPH 
E) enzymes

Question 16

Which of the following is the best light for plant growth according to the results of Engelmann's investigation?

Accepted Answer

A) blue 
B) green 
C) yellow 
D) orange 
E) mostly violet with some red 
A) blue 
B) green 
C) yellow 
D) orange 
E) mostly violet with some red

Question 17

When a pigment molecule absorbs light energy,

Accepted Answer

A) it becomes more stable. 
B) it may gain an electron. 
C) an electron from an inner energy level may move to another level. 
D) an electron from an outer energy level may move to an inner level. 
E) a proton may be ejected from the nucleus of the atom. 
A) it becomes more stable. 
B) it may gain an electron. 
C) an electron from an inner energy level may move to another level. 
D) an electron from an outer energy level may move to an inner level. 
E) a proton may be ejected from the nucleus of the atom.

Question 18

The process in which oxygen, not carbon dioxide, becomes attached to RuBP

Accepted Answer

A) is the Calvin-Benson cycle. 
B) is the C3 pathway. 
C) is the C4 pathway. 
D) does not occur in plants in hot, dry climates. 
E) is photorespiration. 
A) is the Calvin-Benson cycle. 
B) is the C3 pathway. 
C) is the C4 pathway. 
D) does not occur in plants in hot, dry climates. 
E) is photorespiration.

Question 19

Which of the following colors of light has the greatest energy?

Accepted Answer

A) red 
B) yellow 
C) orange 
D) blue 
E) green 
A) red 
B) yellow 
C) orange 
D) blue 
E) green

Question 20

Which of the following is NOT TRUE concerning photosystem I?

Accepted Answer

A) It can run independently as a cyclic pathway. 
B) It runs as a cyclic pathway when too much NADPH is produced. 
C) Electrons from p700 return to p680 when it runs as a cyclic pathway. 
D) When it runs as a cyclic pathway, neither NADP+ nor O2 is formed. 
E) Its energized electrons are used to build a high H+ concentration. 
A) It can run independently as a cyclic pathway. 
B) It runs as a cyclic pathway when too much NADPH is produced. 
C) Electrons from p700 return to p680 when it runs as a cyclic pathway. 
D) When it runs as a cyclic pathway, neither NADP+ nor O2 is formed. 
E) Its energized electrons are used to build a high H+ concentration.

Exam 7: Where It Startsphotosynthesis

One current area of research is to find a way to break down the cellulose from plant materials and use the resulting

The carbon dioxide acceptor in the Calvin-Benson cycle is

Which of the following is NOT involved in the light-dependent reactions?

The best light to grow the alga in is __________, according to the figure.

Which of the following statements describes an electron transfer chain?

Which is NOT TRUE about chemoautotrophs?

The electrons that are passed to NADP+ during the noncyclic pathway are obtained directly from __________ but ultimately from __________.

Which of the following occurs in the light-independent reactions of photosynthesis?

A high concentration of H+ in the thylakoid compartment provides energy for the __________ by__________.

In the noncyclic pathway,

Which of the following is NOT a fossil fuel?

The first stage of photosynthesis begins with

Which of the following statements about the electromagnetic spectrum is true?

All EXCEPT which of the following are present in both the light-dependent and light-independent reactions?

All EXCEPT which of the following must be available for the light-independent reactions to occur?

Which of the following is the best light for plant growth according to the results of Engelmann's investigation?

When a pigment molecule absorbs light energy,

The process in which oxygen, not carbon dioxide, becomes attached to RuBP

Which of the following colors of light has the greatest energy?

Which of the following is NOT TRUE concerning photosystem I?

Invitation to Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure and Function

A Closer Look at Cell Membranes

Ground Rules of Metabolism

Energy-Releasing Pathways

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Dna Structure and Function

From Dna to Protein

Controls Over Genes

Recombinant Dna and Genetic Engineering

The Macroevolutionary Puzzle

Emergence of Evolutionary Thought

Organizing Information About Species

The Origin and Evolution of Life

Viruses and Prokaryotes

Protists the Simplest Eukaryotes

Plants

Fungi

Animals: the Invertebrates

Animal Evolution the Chordates

Human Evolution: a Case Study

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction

Plant Growth and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Protection, Support, and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Animal Reproductive Systems

Animal Development

Animal Behavior

Population Ecology

Community Structure and Biodiversity

Ecosystems

The Biosphere

Human Impacts on the Biosphere

Filters

The electrons that are passed to NADP+ during the noncyclic pathway are obtained directly from but ultimately from .

A high concentration of H⁺ in the thylakoid compartment provides energy for the by.