Question 1

Which light transmittance decreases when the increased opaqueness of the lens absorbs certain wavelengths of light?

Accepted Answer

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

Question 2

What is one difference between the energy produced from the light bulb and the energy produced during the process of bioluminescent light production?

Accepted Answer

A) Less than 5% of the energy converted is lost as chemical energy during the process of bioluminescent light production. 
B) Less than 5% of the energy converted is lost as heat energy during the process of bioluminescent light production. 
C) The conversion of heat energy produced during the process of bioluminescent light production is very inefficient. 
D) The conversion of chemical energy produced during the process of bioluminescent light production is very inefficient. 
A) Less than 5% of the energy converted is lost as chemical energy during the process of bioluminescent light production. 
B) Less than 5% of the energy converted is lost as heat energy during the process of bioluminescent light production. 
C) The conversion of heat energy produced during the process of bioluminescent light production is very inefficient. 
D) The conversion of chemical energy produced during the process of bioluminescent light production is very inefficient.

Question 3

Which of the following best describes coevolution?

Accepted Answer

A) A change in one species has no effect on the other species. 
B) A change in one species has an effect on the other species. 
C) Neither of the two species change. 
D) Both species change, but independently of each other. 
A) A change in one species has no effect on the other species. 
B) A change in one species has an effect on the other species. 
C) Neither of the two species change. 
D) Both species change, but independently of each other.

Question 4

Where is the central pacemaker that controls circadian rhythm found in many animals?

Accepted Answer

A) in the suprachiasmatic nucleus 
B) in the eye 
C) in the skin 
D) in the optic nerve 
A) in the suprachiasmatic nucleus 
B) in the eye 
C) in the skin 
D) in the optic nerve

Question 5

In what way are bacteriorhodopsin and chlorophyll similar?

Accepted Answer

A) They are both found in archaea. 
B) They both capture photons of light. 
C) They are both found in protists. 
D) They are both found in plants. 
A) They are both found in archaea. 
B) They both capture photons of light. 
C) They are both found in protists. 
D) They are both found in plants.

Question 6

The "image-forming eyes" are found in both compound eyes and double-lens eyes.

Accepted Answer

A) True 
 B)False

Question 7

If there is life on another planet within our galaxy, why would we expect to learn that this life would probably use the same narrow range of wavelengths of the electromagnetic spectrum as we do for a source of energy and information?

Accepted Answer

A) because all life must use the same electromagnetic spectrum by definition 
B) because of the fundamental aspects of photon energy and light absorption 
C) because this is the same wavelength that hits the Earth 
D) because there is no other wavelength available in nature 
A) because all life must use the same electromagnetic spectrum by definition 
B) because of the fundamental aspects of photon energy and light absorption 
C) because this is the same wavelength that hits the Earth 
D) because there is no other wavelength available in nature

Question 8

Suppose Monet did NOT have a reduced ability to see over the years. What would his paintings have looked like?

Accepted Answer

A) They would have been less vibrant. 
B) They would have been less blue-green. 
C) They would not have had narrow brush strokes. 
D) They would not have consisted of bleeding colours. 
A) They would have been less vibrant. 
B) They would have been less blue-green. 
C) They would not have had narrow brush strokes. 
D) They would not have consisted of bleeding colours.

Question 9

In the model of a bacteriorhodopsin, which pigment is bound to the protein?

Accepted Answer

A) rhodopsin 
B) retinal 
C) chlorophyll a 
D) indigo 
A) rhodopsin 
B) retinal 
C) chlorophyll a 
D) indigo

Question 10

Quorum sensing is now believed to be the basis for what are termed "milky seas."

Accepted Answer

A) True 
 B)False

Question 11

A planarian orients itself such that an equal amount of light falls on its two ocelli so that the amount of light enhances as the animal swims.

Accepted Answer

A) True 
 B)False

Question 12

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 13

Which of the following are within the range of most radiation reaching the surface of Earth?

Accepted Answer

A) near-infrared and infrared radiation 
B) infrared radiation and microwaves 
C) ultraviolet and near-infrared radiation 
D) ultraviolet radiation and X-rays 
A) near-infrared and infrared radiation 
B) infrared radiation and microwaves 
C) ultraviolet and near-infrared radiation 
D) ultraviolet radiation and X-rays

Question 14

Which best explains phototaxis?

Accepted Answer

A) swimming towards or away from the heat source 
B) swimming towards or away from the magnetic source 
C) swimming towards or away from the light source 
D) swimming towards or away from the chemical source 
A) swimming towards or away from the heat source 
B) swimming towards or away from the magnetic source 
C) swimming towards or away from the light source 
D) swimming towards or away from the chemical source

Question 15

Where are ocelli found?

Accepted Answer

A) in planaria only 
B) in arthropods only 
C) in planaria, some insects, some arthropods, and some molluscs 
D) in insects only 
A) in planaria only 
B) in arthropods only 
C) in planaria, some insects, some arthropods, and some molluscs 
D) in insects only

Question 16

Why do red and blue light drive photosynthesis more effectively than green light?

Accepted Answer

A) because chlorophyll cannot absorb red and blue light 
B) because chlorophyll can absorb green light 
C) because chlorophyll can absorb red and blue light 
D) because chlorophyll cannot absorb green light 
A) because chlorophyll cannot absorb red and blue light 
B) because chlorophyll can absorb green light 
C) because chlorophyll can absorb red and blue light 
D) because chlorophyll cannot absorb green light

Question 17

What does "light pollution" refer to?

Accepted Answer

A) diminished natural lighting 
B) rapid proliferation of artificial lighting 
C) rapid proliferation of natural lighting 
D) diminished artificial lighting 
A) diminished natural lighting 
B) rapid proliferation of artificial lighting 
C) rapid proliferation of natural lighting 
D) diminished artificial lighting

Question 18

The plant photoreceptor phytochrome is important for which of the following?

Accepted Answer

A) photomorphogenesis 
B) photorespiration 
C) growth 
D) photosynthesis 
A) photomorphogenesis 
B) photorespiration 
C) growth 
D) photosynthesis

Question 19

"Milky seas" is a phenomenon resulting from bioluminescence of marine bacteria.

Accepted Answer

A) True 
 B)False

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 1: Light and Life

Which light transmittance decreases when the increased opaqueness of the lens absorbs certain wavelengths of light?

What is one difference between the energy produced from the light bulb and the energy produced during the process of bioluminescent light production?

Which of the following best describes coevolution?

Where is the central pacemaker that controls circadian rhythm found in many animals?

In what way are bacteriorhodopsin and chlorophyll similar?

The "image-forming eyes" are found in both compound eyes and double-lens eyes.

If there is life on another planet within our galaxy, why would we expect to learn that this life would probably use the same narrow range of wavelengths of the electromagnetic spectrum as we do for a source of energy and information?

Suppose Monet did NOT have a reduced ability to see over the years. What would his paintings have looked like?

In the model of a bacteriorhodopsin, which pigment is bound to the protein?

Quorum sensing is now believed to be the basis for what are termed "milky seas."

A planarian orients itself such that an equal amount of light falls on its two ocelli so that the amount of light enhances as the animal swims.

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

Which of the following are within the range of most radiation reaching the surface of Earth?

Which best explains phototaxis?

Where are ocelli found?

Why do red and blue light drive photosynthesis more effectively than green light?

What does "light pollution" refer to?

The plant photoreceptor phytochrome is important for which of the following?

"Milky seas" is a phenomenon resulting from bioluminescence of marine bacteria.

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

The Cell: an Overview

Defining Life and Its Origins

Energy and Enzymes

Cell Membranes and Signalling

Cellular Respiration

Photosynthesis

Cell Cycles

Genetic Recombination

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Dna Structure, Replication, and Organization

Gene Structure and Expression

Control of Gene Expression

Dna Technologies

Genomes and Proteomes

Evolution: the Development of the Theory

Microevolution: Changes Within Populations

Species and Macroevolution

Understanding the History of Life on Earth

Humans and Evolution

Bacteria and Archaea

Viruses, Viroids, and Prions: Infectious Biological Particles

Protists

Fungi

Plants

Diversity of Animals 1: Sponges, Radiata, Platyhelminthes, and Protostomes

Diversity of Animals 2: Deuterostomes: Vertebrates and Their Closest Relatives

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Conservation of Biodiversity

Putting Selection to Work

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

Transport in Animals: the Circulatory System

Reproduction in Animals

Animal Development

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Control

Control of Animal Processes: Neural Integration

Muscles, Skeletons, and Body Movements

Animal Behaviour

Animal Nutrition

Gas Exchange: the Respiratory System

Regulating the Internal Environment

Defences Against Disease

Conservation and Evolutionary Physiology

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