Question 1

Most of the atmospheric oxygen occurs as a result of photosynthesis.From which of the following molecules is the oxygen derived?

Accepted Answer

A) Carbon dioxide 
B) Water 
C) Glucose 
D) Chlorophyll 
E) NADH 
A) Carbon dioxide 
B) Water 
C) Glucose 
D) Chlorophyll 
E) NADH B

Question 2

Carotenoids are important to many plants because these pigments are able to

Accepted Answer

A) remove carbon dioxide from the air. 
B) absorb water so that hydrolysis can be carried out in the chloroplasts. 
C) absorb violet and blue-green wavelengths of light that are not absorbed by chlorophyll. 
D) capture UV radiation that is harmful to the DNA in the nucleus of plant cells. 
E) store electrons for use during the "dark" reaction of photosynthesis. 
A) remove carbon dioxide from the air. 
B) absorb water so that hydrolysis can be carried out in the chloroplasts. 
C) absorb violet and blue-green wavelengths of light that are not absorbed by chlorophyll. 
D) capture UV radiation that is harmful to the DNA in the nucleus of plant cells. 
E) store electrons for use during the "dark" reaction of photosynthesis. C

Question 3

Inside the inner membranes of chloroplasts,chlorophyll pigments are grouped into a light-gathering network called a _______________.

Accepted Answer

photosystem

Question 4

The substrates for photosynthesis are

Accepted Answer

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

Question 5

What is the purpose of accessory pigments,such as carotenoids,in photosynthesis?

Accepted Answer

Accessory pigments can pick up different

Question 6

The overall purpose of the Calvin cycle is to

Accepted Answer

A) generate molecules of ATP. 
B) generate NADP. 
C) give off oxygen for animal use. 
D) build organic (carbon)molecules. 
A) generate molecules of ATP. 
B) generate NADP. 
C) give off oxygen for animal use. 
D) build organic (carbon)molecules.

Question 7

Which wavelength of light is the shortest?

Accepted Answer

A) Gamma rays 
B) X-rays 
C) UV light 
D) Visible light 
E) Infrared 
A) Gamma rays 
B) X-rays 
C) UV light 
D) Visible light 
E) Infrared

Question 8

The production of ATP in photosynthesis is called

Accepted Answer

A) catabolism. 
B) oxidative phosphorylation. 
C) photophosphorylation. 
D) the Calvin cycle. 
E) photorespiration. 
A) catabolism. 
B) oxidative phosphorylation. 
C) photophosphorylation. 
D) the Calvin cycle. 
E) photorespiration.

Question 9

The energy to power the Calvin cycle comes from

Accepted Answer

A) cellular respiration. 
B) the light-dependent reactions of photosynthesis. 
C) the light-independent reactions of photosynthesis. 
D) oxygen. 
E) chlorophyll. 
A) cellular respiration. 
B) the light-dependent reactions of photosynthesis. 
C) the light-independent reactions of photosynthesis. 
D) oxygen. 
E) chlorophyll.

Question 10

The internal membranes within the chloroplast are organized into flattened sacs called ____________.

Accepted Answer

The answer of The internal membranes within the chloroplast are...

Question 11

How much of the radiant energy from the sun is incorporated into organic compounds in the process of photosynthesis?

Accepted Answer

A) Almost 90% 
B) 50% 
C) 25% 
D) 1% or less 
A) Almost 90% 
B) 50% 
C) 25% 
D) 1% or less

Question 12

A photosystem transfers the excitation energy gathered by its pigment molecules to a specific chlorophyll at the reaction center.

Accepted Answer

A) True 
 B)False

Question 13

Which of the following does not do photosynthesis?

Accepted Answer

A) Algae 
B) Leaves of plants 
C) Some bacteria 
D) Roots of plants 
E) None of the choices are correct 
A) Algae 
B) Leaves of plants 
C) Some bacteria 
D) Roots of plants 
E) None of the choices are correct

Question 14

C4 photosynthesis is an adaptation to hot,dry conditions in which

Accepted Answer

A) CO2 is fixed and stored in the leaf. 
B) water is stored in the stem. 
C) oxygen is stored in the root. 
D) light energy is stored in chloroplasts. 
A) CO2 is fixed and stored in the leaf. 
B) water is stored in the stem. 
C) oxygen is stored in the root. 
D) light energy is stored in chloroplasts.

Question 15

What is the metal ion in chlorophyll?

Accepted Answer

A) Magnesium 
B) Iron 
C) Zinc 
D) Copper 
E) Sulfur 
A) Magnesium 
B) Iron 
C) Zinc 
D) Copper 
E) Sulfur

Question 16

Which of the following is not present during the Calvin cycle?

Accepted Answer

A) ATP 
B) CO2 
C) NADPH 
D) O2 
E) All are present during the Calvin cycle 
A) ATP 
B) CO2 
C) NADPH 
D) O2 
E) All are present during the Calvin cycle

Question 17

Light energy arrives at earth in little packets called

Accepted Answer

A) rays. 
B) photons. 
C) light waves. 
D) wavelengths. 
A) rays. 
B) photons. 
C) light waves. 
D) wavelengths.

Question 18

How many turns of the Calvin cycle are needed to make one glucose molecule?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 5 
E) 6 
A) 1 
B) 2 
C) 3 
D) 5 
E) 6

Question 19

A pigment appears red if it absorbs red light.

Accepted Answer

A) True 
 B)False

Question 20

For every 3 molecules of CO2 that enter the Calvin cycle,one molecule of __________________ is produced.

Accepted Answer

glyceralde

Exam 6: Photosynthesis: Acquiring Energy From the Sun

Most of the atmospheric oxygen occurs as a result of photosynthesis.From which of the following molecules is the oxygen derived?

Carotenoids are important to many plants because these pigments are able to

Inside the inner membranes of chloroplasts,chlorophyll pigments are grouped into a light-gathering network called a _______________.

The substrates for photosynthesis are

What is the purpose of accessory pigments,such as carotenoids,in photosynthesis?

The overall purpose of the Calvin cycle is to

Which wavelength of light is the shortest?

The production of ATP in photosynthesis is called

The energy to power the Calvin cycle comes from

The internal membranes within the chloroplast are organized into flattened sacs called ____________.

How much of the radiant energy from the sun is incorporated into organic compounds in the process of photosynthesis?

A photosystem transfers the excitation energy gathered by its pigment molecules to a specific chlorophyll at the reaction center.

Which of the following does not do photosynthesis?

C4 photosynthesis is an adaptation to hot,dry conditions in which

What is the metal ion in chlorophyll?

Which of the following is not present during the Calvin cycle?

Light energy arrives at earth in little packets called

How many turns of the Calvin cycle are needed to make one glucose molecule?

A pigment appears red if it absorbs red light.

For every 3 molecules of CO2 that enter the Calvin cycle,one molecule of __________________ is produced.

The Science of Biology

The Chemistry of Life

Molecules of Life

Cells

Energy and Life

How Cells Harvest Energy From Food

Mitosis

Meiosis

Foundations of Genetics

DNA: the Genetic Material

How Genes Work

Genomics and Biotechnology

Evolution and Natural Selection

How We Name Living Things

Prokaryotes: the First Single-Celled Creatures

Protists: Advent of the Eukaryotes

Fungi Invade the Land

Evolution of the Animal Phyla

History of the Vertebrates

How Humans Evolved

The Animal Body and How It Moves

Circulation

Respiration

The Path of Food Through the Animal Body

Maintaining the Internal Environment

How the Animal Body Defends Itself

The Nervous System

The Senses

Chemical Signaling Within the Animal Body

Reproduction and Development

Evolution of Plants

Plant Form and Function

Plant Reproduction and Growth

Populations and Communities

Ecosystems

Behavior and the Environment

Human Influences on the Living World

Filters

C₄ photosynthesis is an adaptation to hot,dry conditions in which

For every 3 molecules of CO₂ that enter the Calvin cycle,one molecule of __________________ is produced.