Question 1

What is the raw material for photosynthesis?

Accepted Answer

A)  sugar and water 
B)  sugar and oxygen 
C)  carbon dioxide and oxygen 
D)  carbon dioxide and water 
A)  sugar and water 
B)  sugar and oxygen 
C)  carbon dioxide and oxygen 
D)  carbon dioxide and water

Question 2

The UV light affects the nucleotide bases of DNA. What can UV light form, and how many neighbouring bases of DNA become covalently linked in this situation?

Accepted Answer

A)  It can form a primer with two bases linked. 
B)  It can form a dimer with one base linked. 
C)  It can form a trimer with three bases linked. 
D)  It can form a dimer with two bases linked. 
A)  It can form a primer with two bases linked. 
B)  It can form a dimer with one base linked. 
C)  It can form a trimer with three bases linked. 
D)  It can form a dimer with two bases linked.

Question 3

When the plant is exposed to wavelengths of red light, phytochrome becomes inactive and initiates a signal transduction pathway.

Accepted Answer

A) True 
 B)False

Question 4

In many ways, the eyes of Planaria is much more advanced than the eyespot of Chlamydomonas.

Accepted Answer

A) True 
 B)False

Question 5

In what way are animals that are normally active during the daytime different than animals that are normally active at night?

Accepted Answer

A)  Animals that are normally active during the daytime display worse visual acuity under high-light conditions compared to animals that are normally active during the night. 
B)  Animals that are normally active during the daytime display improved visual acuity under high-light conditions compared to animals that are active during the night. 
C)  Animals that are normally active at night display worse visual acuity under low-light conditions compared to animals that are normally active during the daytime. 
D)  Animals that are normally active at night display improved visual acuity under low-light conditions compared to animals that are normally active during the daytime. 
A)  Animals that are normally active during the daytime display worse visual acuity under high-light conditions compared to animals that are normally active during the night. 
B)  Animals that are normally active during the daytime display improved visual acuity under high-light conditions compared to animals that are active during the night. 
C)  Animals that are normally active at night display worse visual acuity under low-light conditions compared to animals that are normally active during the daytime. 
D)  Animals that are normally active at night display improved visual acuity under low-light conditions compared to animals that are normally active during the daytime.

Question 6

Why is chlorophyll green in colour?

Accepted Answer

A)  because it can absorb portions of blue light 
B)  because it can absorb some red light 
C)  because it can absorb green light 
D)  because it cannot absorb green light 
A)  because it can absorb portions of blue light 
B)  because it can absorb some red light 
C)  because it can absorb green light 
D)  because it cannot absorb green light

Question 7

Why do animals in deep ocean depths live in complete darkness?

Accepted Answer

A)  because 100% of the ocean is at a depth where no light penetrates 
B)  because over 90% of the ocean is at a depth where no light penetrates 
C)  because over 80% of the ocean is at a depth where no light penetrates 
D)  because over 70% of the ocean is at a depth where no light penetrates 
A)  because 100% of the ocean is at a depth where no light penetrates 
B)  because over 90% of the ocean is at a depth where no light penetrates 
C)  because over 80% of the ocean is at a depth where no light penetrates 
D)  because over 70% of the ocean is at a depth where no light penetrates

Question 8

Bioluminescent organisms do NOT need to be exposed to light at all.

Accepted Answer

A) True 
 B)False

Question 9

When does phytochrome become active in seedlings?

Accepted Answer

A)  when a seedling is exposed to wavelengths of blue light 
B)  when a seedling is exposed to wavelengths of red light 
C)  when a seedling is exposed to wavelengths of green light 
D)  when a seedling is exposed to wavelengths of yellow light 
A)  when a seedling is exposed to wavelengths of blue light 
B)  when a seedling is exposed to wavelengths of red light 
C)  when a seedling is exposed to wavelengths of green light 
D)  when a seedling is exposed to wavelengths of yellow light

Exam 1: Light and Life

What is the raw material for photosynthesis?

The UV light affects the nucleotide bases of DNA. What can UV light form, and how many neighbouring bases of DNA become covalently linked in this situation?

When the plant is exposed to wavelengths of red light, phytochrome becomes inactive and initiates a signal transduction pathway.

In many ways, the eyes of Planaria is much more advanced than the eyespot of Chlamydomonas.

In what way are animals that are normally active during the daytime different than animals that are normally active at night?

Why is chlorophyll green in colour?

Why do animals in deep ocean depths live in complete darkness?

Bioluminescent organisms do NOT need to be exposed to light at all.

When does phytochrome become active in seedlings?

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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