Question 1

The flow of hydrogen ions out of the thylakoid compartment ____.

Accepted Answer

A) provides energy to produce ATP molecules 
B) recharges the photosystems 
C) converts ATP into ADP 
D) excites chlorophyll molecules 
E) generates oxygen molecules 
A) provides energy to produce ATP molecules 
B) recharges the photosystems 
C) converts ATP into ADP 
D) excites chlorophyll molecules 
E) generates oxygen molecules

Question 2

-In the accompanying figure, letter F represents ____, a product of light-dependent reactions in both the cyclic and noncyclic reactions.

Accepted Answer

A) ATP 
B) oxygen 
C) carbon dioxide 
D) water 
E) hydrogen ions 
A) ATP 
B) oxygen 
C) carbon dioxide 
D) water 
E) hydrogen ions

Question 3

Chlorophyll is found ____ of a plant cell.

Accepted Answer

A) on the outer chloroplast membrane 
B) inside the mitochondria 
C) in the stroma 
D) in the thylakoid membrane 
E) in the plant cell wall 
A) on the outer chloroplast membrane 
B) inside the mitochondria 
C) in the stroma 
D) in the thylakoid membrane 
E) in the plant cell wall

Question 4

For each six atoms of carbon derived from CO2 fixed in the light-independent reactions, how many molecules of PGAL (phosphoglyceraldehyde) are produced?

Accepted Answer

A) 2 
B) 3 
C) 6 
D) 12 
E) 15 
A) 2 
B) 3 
C) 6 
D) 12 
E) 15

Question 5

Which gas is released into the environment when organic material is burned?

Accepted Answer

A) O2 
B) CO2 
C) N2 
D) H2 
E) Cl2 
A) O2 
B) CO2 
C) N2 
D) H2 
E) Cl2

Question 6

Suppose an electron transport chain that receives electrons from photosystem II fails to function properly during photosynthesis. How would the hydrogen ion gradient be affected?

Accepted Answer

The hydrogen ion gradient would not form

Question 7

Match each term to its most suitable description.
-photosynthesis

Accepted Answer

A) absorbs light 
B) converts light to chemical energy 
C) organisms that make their own food 
D) process that is minimized in C4 and CAM plants 
E) ​organisms that obtain energy from consuming other organisms 
A) absorbs light 
B) converts light to chemical energy 
C) organisms that make their own food 
D) process that is minimized in C4 and CAM plants 
E) ​organisms that obtain energy from consuming other organisms

Question 8

Electrons lost by chlorophyll are replaced by electrons donated from ____.

Accepted Answer

A) NADPH 
B) sunlight 
C) water 
D) carbon dioxide 
E) ATP 
A) NADPH 
B) sunlight 
C) water 
D) carbon dioxide 
E) ATP

Question 9

Match each process or structure with its correct location within the chloroplast. Some choices may be used more than once.
-formation of ATP​

Accepted Answer

A) thylakoid membrane 
B) stroma 
C) thylakoid compartment 
A) thylakoid membrane 
B) stroma 
C) thylakoid compartment

Question 10

Match the description to the correct photosynthetic pathway.
-In this process, one six-carbon sugar is formed from two molecules of phosphoglyceraldehyde.

Accepted Answer

A) light-dependent reactions in the noncyclic pathway 
B) light-dependent reactions in the cyclic pathway 
C) Calvin-Benson cycle 
D) C4 pathway 
E) photorespiration 
A) light-dependent reactions in the noncyclic pathway 
B) light-dependent reactions in the cyclic pathway 
C) Calvin-Benson cycle 
D) C4 pathway 
E) photorespiration

Question 11

Match each term to its most suitable description.
-heterotroph​

Accepted Answer

A) absorbs light 
B) converts light to chemical energy 
C) organisms that make their own food 
D) process that is minimized in C4 and CAM plants 
E) ​organisms that obtain energy from consuming other organisms 
A) absorbs light 
B) converts light to chemical energy 
C) organisms that make their own food 
D) process that is minimized in C4 and CAM plants 
E) ​organisms that obtain energy from consuming other organisms

Question 12

Chlorophyll a absorbs which color(s) of light?

Accepted Answer

A) red only 
B) green only 
C) violet only 
D) red, violet, and orange 
E) red, violet, and green 
A) red only 
B) green only 
C) violet only 
D) red, violet, and orange 
E) red, violet, and green

Question 13

Which molecule is produced by the light-dependent reactions of the cyclic pathway?

Accepted Answer

A) sugar 
B) NADPH 
C) oxygen 
D) ATP 
E) water 
A) sugar 
B) NADPH 
C) oxygen 
D) ATP 
E) water

Question 14

Light-dependent reactions in plants occur in the ____.

Accepted Answer

A) thylakoid membrane 
B) plasma membrane 
C) stroma 
D) cytoplasm 
E) stomata 
A) thylakoid membrane 
B) plasma membrane 
C) stroma 
D) cytoplasm 
E) stomata

Question 15

What is the chemical relationship between the light-dependent and light-independent reactions of photosynthesis?

Accepted Answer

Two products of the light-dependent reac

Question 16

In the cyclic pathway of the light-dependent reactions, electrons ejected from photosystem I enter the electron transport system before returning to ____.

Accepted Answer

A) photosystem II 
B) photosystem I 
C) the stroma 
D) the outer chloroplast membranes 
E) ATP synthase 
A) photosystem II 
B) photosystem I 
C) the stroma 
D) the outer chloroplast membranes 
E) ATP synthase

Question 17

Which plant(s) are adapted to hot, dry desert environments?

Accepted Answer

A) C3 plants only 
B) C3 and C4 plants 
C) plants that fix carbon only by the Calvin-Benson cycle 
D) CAM plants 
E) plants that are adapted to maximize photorespiration 
A) C3 plants only 
B) C3 and C4 plants 
C) plants that fix carbon only by the Calvin-Benson cycle 
D) CAM plants 
E) plants that are adapted to maximize photorespiration

Question 18

Match the description to the correct photosynthetic pathway.
-This process yields ATP but not NADPH or oxygen.

Accepted Answer

A) light-dependent reactions in the noncyclic pathway 
B) light-dependent reactions in the cyclic pathway 
C) Calvin-Benson cycle 
D) C4 pathway 
E) photorespiration 
A) light-dependent reactions in the noncyclic pathway 
B) light-dependent reactions in the cyclic pathway 
C) Calvin-Benson cycle 
D) C4 pathway 
E) photorespiration

Question 19

Which subatomic particles of a pigment absorb light?

Accepted Answer

A) electrons only 
B) protons only 
C) neutrons only 
D) electrons and protons 
E) protons and neutrons 
A) electrons only 
B) protons only 
C) neutrons only 
D) electrons and protons 
E) protons and neutrons

Question 20

While gazing into an aquarium, you observe bubbles coming from an aquatic plant. What are the bubbles and where are they coming from?

Accepted Answer

The bubbling from submerged aquatic plan

Exam 6: Where It Starts-Photosynthesis

The flow of hydrogen ions out of the thylakoid compartment ____.

-In the accompanying figure, letter F represents ____, a product of light-dependent reactions in both the cyclic and noncyclic reactions.

Chlorophyll is found ____ of a plant cell.

For each six atoms of carbon derived from CO2 fixed in the light-independent reactions, how many molecules of PGAL (phosphoglyceraldehyde) are produced?

Which gas is released into the environment when organic material is burned?

Suppose an electron transport chain that receives electrons from photosystem II fails to function properly during photosynthesis. How would the hydrogen ion gradient be affected?

Match each term to its most suitable description. -photosynthesis

Electrons lost by chlorophyll are replaced by electrons donated from ____.

Match each process or structure with its correct location within the chloroplast. Some choices may be used more than once. -formation of ATP​

Match the description to the correct photosynthetic pathway. -In this process, one six-carbon sugar is formed from two molecules of phosphoglyceraldehyde.

Match each term to its most suitable description. -heterotroph​

Chlorophyll a absorbs which color(s) of light?

Which molecule is produced by the light-dependent reactions of the cyclic pathway?

Light-dependent reactions in plants occur in the ____.

What is the chemical relationship between the light-dependent and light-independent reactions of photosynthesis?

In the cyclic pathway of the light-dependent reactions, electrons ejected from photosystem I enter the electron transport system before returning to ____.

Which plant(s) are adapted to hot, dry desert environments?

Match the description to the correct photosynthetic pathway. -This process yields ATP but not NADPH or oxygen.

Which subatomic particles of a pigment absorb light?

While gazing into an aquarium, you observe bubbles coming from an aquatic plant. What are the bubbles and where are they coming from?

The Science of Biology

Lifes Chemical Basis

Molecules of Life

Cell Structure

Ground Rules of Metabolism

Releasing Chemical Energy

DNA Structure and Function

From DNA to Protein

Control of Gene Expression

How Cells Reproduce

Meiosis and Sexual Reproduction

Patterns in Inherited Traits

Human Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Lifes Origin and Early Evolution

Viruses, Bacteria, and Archaea

The Protists

Plant Evolution

Fungi

Animals I: Major Invertebrate Groups

Animals Ii: the Chordates

Plant Tissues

Plant Nutrition and Transport

Plant Reproduction and Development

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Human Nutrition

Maintaining the Internal Environment

Reproduction and Development

Animal Behavior

Population Ecology

Community Ecology

Ecosystems

The Biosphere

Human Effects on the Biosphere

Filters

For each six atoms of carbon derived from CO₂ fixed in the light-independent reactions, how many molecules of PGAL (phosphoglyceraldehyde) are produced?

Match each process or structure with its correct location within the chloroplast. Some choices may be used more than once. -formation of ATP

Match each term to its most suitable description. -heterotroph