Question 1

Which natural phenomenon is the most fundamental?

Accepted Answer

A)  warmth 
B)  sensitivity 
C)  sound 
D)  light 
A)  warmth 
B)  sensitivity 
C)  sound 
D)  light

Question 2

Explain how organisms use light to tell time.

Accepted Answer

The daily cycling of some biological phe

Question 3

A brightly coloured penguin is less healthy.

Accepted Answer

A) True 
 B)False

Question 4

What does light absorption trigger during phototaxis?

Accepted Answer

A)  rapid changes in the concentrations of ions, including potassium and oxygen 
B)  rapid changes in the concentrations of ions, including sodium and oxygen 
C)  rapid changes in the concentrations of ions, including sodium and calcium 
D)  rapid changes in the concentrations of ions, including potassium and calcium 
A)  rapid changes in the concentrations of ions, including potassium and oxygen 
B)  rapid changes in the concentrations of ions, including sodium and oxygen 
C)  rapid changes in the concentrations of ions, including sodium and calcium 
D)  rapid changes in the concentrations of ions, including potassium and calcium

Question 5

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 6

Where are ocelli single-lens eyes found?

Accepted Answer

A)  only in invertebrates, not in vertebrates 
B)  in most vertebrates, including humans, but not in invertebrates 
C)  in some invertebrates and most vertebrates, including humans 
D)  in some vertebrates only, but not in humans 
A)  only in invertebrates, not in vertebrates 
B)  in most vertebrates, including humans, but not in invertebrates 
C)  in some invertebrates and most vertebrates, including humans 
D)  in some vertebrates only, but not in humans

Question 7

What controls circadian rhythms, and which environment sets this clock?

Accepted Answer

A)  an internal clock; an external environment 
B)  an artificial clock; a natural environment 
C)  an external clock; an internal environment 
D)  a natural clock; an artificial environment 
A)  an internal clock; an external environment 
B)  an artificial clock; a natural environment 
C)  an external clock; an internal environment 
D)  a natural clock; an artificial environment

Question 8

What is a conjugated system?

Accepted Answer

A)  a pigment region where hydrogen atoms are covalently bonded to each other with alternating single and double bonds 
B)  a pigment region where oxygen atoms are covalently bonded to each other with alternating single and double bonds 
C)  a pigment region where carbon atoms are covalently bonded to each other with alternating single and double bonds 
D)  a pigment region where nitrogen atoms are covalently bonded to each other with alternating single and double bonds 
A)  a pigment region where hydrogen atoms are covalently bonded to each other with alternating single and double bonds 
B)  a pigment region where oxygen atoms are covalently bonded to each other with alternating single and double bonds 
C)  a pigment region where carbon atoms are covalently bonded to each other with alternating single and double bonds 
D)  a pigment region where nitrogen atoms are covalently bonded to each other with alternating single and double bonds

Question 9

Which colour are hummingbirds attracted to?

Accepted Answer

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

Question 10

What is the most common photoreceptor found in nature?

Accepted Answer

A)  chlorophyll b 
B)  chlorophyll a 
C)  rhodopsin 
D)  carotene 
A)  chlorophyll b 
B)  chlorophyll a 
C)  rhodopsin 
D)  carotene

Question 11

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 12

Consider the range of electromagnetic spectrum. What is the relationship between the wavelength of light and the energy of the photons it carries?

Accepted Answer

A)  the shorter the wavelength, the lower the energy of the photons it contains 
B)  the longer the wavelength, the higher the energy of the photons it contains 
C)  the longer the wavelength, the lower the energy of the photons it contains 
D)  the more average the wavelength, the higher the energy of the photons it contains 
A)  the shorter the wavelength, the lower the energy of the photons it contains 
B)  the longer the wavelength, the higher the energy of the photons it contains 
C)  the longer the wavelength, the lower the energy of the photons it contains 
D)  the more average the wavelength, the higher the energy of the photons it contains

Question 13

Birds that are brightly coloured have a good diet.

Accepted Answer

A) True 
 B)False

Question 14

Light serves two important functions for life on Earth. What is light's one source that sustains life, and what information does it provide organisms with?

Accepted Answer

A)  energy; information about physical life 
B)  chemicals; information about physical life 
C)  chemicals; information about surrounding life 
D)  energy; information about chemical life 
A)  energy; information about physical life 
B)  chemicals; information about physical life 
C)  chemicals; information about surrounding life 
D)  energy; information about chemical life

Question 15

We "see" not with our eyes but rather with our brain.

Accepted Answer

A) True 
 B)False

Question 16

A person who is of African descent living in Norway cannot suffer from vitamin D deficiency.

Accepted Answer

A) True 
 B)False

Question 17

If a plant has bright flowers, it is very likely that it is attracting animals.

Accepted Answer

A) True 
 B)False

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

Which of the following must occur in order for light to be used by an organism?

Accepted Answer

A)  The light must be transmitted. 
B)  The light must be absorbed. 
C)  The light must be transferred. 
D)  The light must be reflected. 
A)  The light must be transmitted. 
B)  The light must be absorbed. 
C)  The light must be transferred. 
D)  The light must be reflected.

Question 20

What does the conjugated system arrangement in pigments result in?

Accepted Answer

A)  delocalization of protons 
B)  localization of electrons 
C)  delocalization of electrons 
D)  localization of protons 
A)  delocalization of protons 
B)  localization of electrons 
C)  delocalization of electrons 
D)  localization of protons

Exam 1: Light and Life

Which natural phenomenon is the most fundamental?

Explain how organisms use light to tell time.

A brightly coloured penguin is less healthy.

What does light absorption trigger during phototaxis?

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

Where are ocelli single-lens eyes found?

What controls circadian rhythms, and which environment sets this clock?

What is a conjugated system?

Which colour are hummingbirds attracted to?

What is the most common photoreceptor found in nature?

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

Consider the range of electromagnetic spectrum. What is the relationship between the wavelength of light and the energy of the photons it carries?

Birds that are brightly coloured have a good diet.

Light serves two important functions for life on Earth. What is light's one source that sustains life, and what information does it provide organisms with?

We "see" not with our eyes but rather with our brain.

A person who is of African descent living in Norway cannot suffer from vitamin D deficiency.

If a plant has bright flowers, it is very likely that it is attracting animals.

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

Which of the following must occur in order for light to be used by an organism?

What does the conjugated system arrangement in pigments result in?

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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