Question 1

Which of the following is of particular concern for causing damage by light energy?

Accepted Answer

A)  higher-energy gamma radiation 
B)  lower-energy gamma radiation 
C)  higher-energy ultraviolet radiation 
D)  lower-energy ultraviolet radiation 
A)  higher-energy gamma radiation 
B)  lower-energy gamma radiation 
C)  higher-energy ultraviolet radiation 
D)  lower-energy ultraviolet radiation C

Question 2

Which of the following describes a red pigment?

Accepted Answer

A)  It can reflect the green wavelength. 
B)  It cannot reflect the red wavelength. 
C)  It cannot reflect the green wavelength. 
D)  It can reflect the red wavelength. 
A)  It can reflect the green wavelength. 
B)  It cannot reflect the red wavelength. 
C)  It cannot reflect the green wavelength. 
D)  It can reflect the red wavelength. D

Question 3

Bacteriorhodopsin, as a pigment in Halobacterium, functions in photosynthesis.

Accepted Answer

A) True 
 B)False  False

Question 4

What do tarsiers and giant squids have in common?

Accepted Answer

A)  They are both active during daytime as well as at night. 
B)  They both live in water. 
C)  They are both active during daytime. 
D)  They are both nocturnal. 
A)  They are both active during daytime as well as at night. 
B)  They both live in water. 
C)  They are both active during daytime. 
D)  They are both nocturnal.

Question 5

In which form does energy enter the ecosystem?

Accepted Answer

A)  chemical energy 
B)  heat 
C)  light energy 
D)  magnetic energy 
A)  chemical energy 
B)  heat 
C)  light energy 
D)  magnetic energy

Question 6

Which of these organisms use chemical energy to excite an electron in a molecule, so that it bounces back and forth?

Accepted Answer

A)  bacteria, Archaea, and protists 
B)  bacteria, squid, and fireflies 
C)  squids, octopuses, and clams 
D)  fireflies, butterflies, and dragonflies 
A)  bacteria, Archaea, and protists 
B)  bacteria, squid, and fireflies 
C)  squids, octopuses, and clams 
D)  fireflies, butterflies, and dragonflies

Question 7

Which of the following processes loses less than 5% of the energy as heat?

Accepted Answer

A)  photosynthesis 
B)  cellular respiration 
C)  bioluminescent light production 
D)  fermentation 
A)  photosynthesis 
B)  cellular respiration 
C)  bioluminescent light production 
D)  fermentation

Question 8

How do bioluminescent animals deal with light?

Accepted Answer

A)  They absorb light from the environment. 
B)  They reflect light to the environment. 
C)  They produce their own light. 
D)  They transmit light form the environment. 
A)  They absorb light from the environment. 
B)  They reflect light to the environment. 
C)  They produce their own light. 
D)  They transmit light form the environment.

Question 9

Suppose that dinoflagellates are NOT bioluminescent. Which of the following would most likely characterize them?

Accepted Answer

A)  They will not be able to feed. 
B)  They will not be able to reproduce. 
C)  They will not be able to scare off potential predators. 
D)  They will not be able to expel wastes. 
A)  They will not be able to feed. 
B)  They will not be able to reproduce. 
C)  They will not be able to scare off potential predators. 
D)  They will not be able to expel wastes.

Question 10

What is the free-running nature of circadian rhythm analogous to?

Accepted Answer

A)  a desktop computer 
B)  a digital telephone 
C)  an old-fashioned wrist watch 
D)  a modern calculator 
A)  a desktop computer 
B)  a digital telephone 
C)  an old-fashioned wrist watch 
D)  a modern calculator

Question 11

Which of the following allows energy to be used by living things?

Accepted Answer

A)  It cannot cause changes. 
B)  It can be reflected. 
C)  It has no mass. 
D)  It can interact with matter. 
A)  It cannot cause changes. 
B)  It can be reflected. 
C)  It has no mass. 
D)  It can interact with matter.

Question 12

Which colours are bees attracted to?

Accepted Answer

A)  green and red 
B)  green and blue 
C)  yellow and red 
D)  yellow and blue 
A)  green and red 
B)  green and blue 
C)  yellow and red 
D)  yellow and blue

Question 13

Explain the role of light in behaviour and ecology. Provide two examples.

Accepted Answer

Nature provides a great range of light e

Question 14

Which wavelengths are absorbed by the ozone layer high in the atmosphere?

Accepted Answer

A)  visible wavelengths of electromagnetic radiation 
B)  longer wavelengths of electromagnetic radiation 
C)  any wavelength of electromagnetic radiation 
D)  shorter wavelengths of electromagnetic radiation 
A)  visible wavelengths of electromagnetic radiation 
B)  longer wavelengths of electromagnetic radiation 
C)  any wavelength of electromagnetic radiation 
D)  shorter wavelengths of electromagnetic radiation

Question 15

If a photosystem II complex is under normal light conditions, how often might you expect that it needs to be repaired?

Accepted Answer

A)  10 minutes 
B)  20 minutes 
C)  30 minutes 
D)  60 minutes 
A)  10 minutes 
B)  20 minutes 
C)  30 minutes 
D)  60 minutes

Question 16

When phytochrome is activated to sense a change in the environment, what is most likely happening in a seedling?

Accepted Answer

A)  the normal developmental process activated by seedlings when exposed to heat 
B)  the normal developmental process activated by seedlings when exposed to light 
C)  the normal developmental process activated by seedlings when exposed to cold 
D)  the normal developmental process activated by seedlings when exposed to salinity 
A)  the normal developmental process activated by seedlings when exposed to heat 
B)  the normal developmental process activated by seedlings when exposed to light 
C)  the normal developmental process activated by seedlings when exposed to cold 
D)  the normal developmental process activated by seedlings when exposed to salinity

Question 17

A discrete particle of energy is called a photon.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following characteristics of light is most commonly used for defining light as a portion of the electromagnetic spectrum?

Accepted Answer

A)  the fact that all living organisms can detect it 
B)  the fact that plants can detect it 
C)  the fact that humans can detect it with their eyes 
D)  the fact that non-human animals can detect it with their eyes 
A)  the fact that all living organisms can detect it 
B)  the fact that plants can detect it 
C)  the fact that humans can detect it with their eyes 
D)  the fact that non-human animals can detect it with their eyes

Question 19

When light hits a pigment, what happens to the energy from a photon?

Accepted Answer

A)  It is reflected from an electron of the pigment molecule. 
B)  It is transferred to an electron of the pigment molecule. 
C)  It is transmitted through an electron of the pigment molecule. 
D)  It is transmitted and reflected from an electron of the pigment molecule. 
A)  It is reflected from an electron of the pigment molecule. 
B)  It is transferred to an electron of the pigment molecule. 
C)  It is transmitted through an electron of the pigment molecule. 
D)  It is transmitted and reflected from an electron of the pigment molecule.

Question 20

Absorption of a photon of light causes the retinal pigment molecule to change shape.

Accepted Answer

A) True 
 B)False

Exam 1: Light and Life

Which of the following is of particular concern for causing damage by light energy?

Which of the following describes a red pigment?

Bacteriorhodopsin, as a pigment in Halobacterium, functions in photosynthesis.

What do tarsiers and giant squids have in common?

In which form does energy enter the ecosystem?

Which of these organisms use chemical energy to excite an electron in a molecule, so that it bounces back and forth?

Which of the following processes loses less than 5% of the energy as heat?

How do bioluminescent animals deal with light?

Suppose that dinoflagellates are NOT bioluminescent. Which of the following would most likely characterize them?

What is the free-running nature of circadian rhythm analogous to?

Which of the following allows energy to be used by living things?

Which colours are bees attracted to?

Explain the role of light in behaviour and ecology. Provide two examples.

Which wavelengths are absorbed by the ozone layer high in the atmosphere?

If a photosystem II complex is under normal light conditions, how often might you expect that it needs to be repaired?

When phytochrome is activated to sense a change in the environment, what is most likely happening in a seedling?

A discrete particle of energy is called a photon.

Which of the following characteristics of light is most commonly used for defining light as a portion of the electromagnetic spectrum?

When light hits a pigment, what happens to the energy from a photon?

Absorption of a photon of light causes the retinal pigment molecule to change shape.

The Cell: an Overview

Energy and Enzymes

Cell Membranes and Signaling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

The Chromosomal Basis of Mendelian Inheritance

Genetic Linkage, Sex-Linkage, and Other Non-Mendelian Inheritance Mechanisms

DNA Structure, Replication, and Repair

Gene Structure Expression, and Mutation

Regulation of Gene Expression

Dna Technologies

Genomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Speciation and Macroevolution

Systematics and Phylogenetics: Revealing the Tree of Life

Humans and Evolution

Defining Life and Its Origins

Viruses, Viroids, and Prions: Infectious Biological Particles

Bacteria and Archaea

Protists

Fungi

Plants

Animals

Conservation of Biodiversity

Population Ecology

Species Interactions and Community Ecology

Ecosystems

Animal Behaviour

Organization of the Plant Body

Transport in Plants

Reproduction and Development in Flowering Plants

Plant Nutrition

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Animal Nutrition

Gas Exchange: the Respiratory System

Internal Transport: the Circulatory System

Regulation of the Internal Environment: Water, Solutes, and Temperature

Control of Animal Processes: Endocrine Control

Animal Reproduction

Control of Animal Processes: Neural Control

Muscles, Skeletons, and Body Movements

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