Question 1

When oxygen became part of the atmosphere, it came from

Accepted Answer

A)  carbon dioxide. 
B)  volcanoes. 
C)  the splitting of water by autotrophs. 
D)  organic molecules. 
A)  carbon dioxide. 
B)  volcanoes. 
C)  the splitting of water by autotrophs. 
D)  organic molecules.

Question 2

According to the currently popular scientific theory for the origin of life, which of the following occurred before all of the others?

Accepted Answer

A)  Eukaryotic organisms 
B)  Oxygen in the atmosphere 
C)  Prokaryotic organisms 
D)  Photosynthesis 
A)  Eukaryotic organisms 
B)  Oxygen in the atmosphere 
C)  Prokaryotic organisms 
D)  Photosynthesis

Question 3

All of the following would have been energy sources on primitive Earth EXCEPT

Accepted Answer

A)  ultraviolet light. 
B)  heat. 
C)  oxidation of organic molecules. 
D)  sunlight. 
A)  ultraviolet light. 
B)  heat. 
C)  oxidation of organic molecules. 
D)  sunlight.

Question 4

If the first living thing was produced on Earth,

Accepted Answer

A)  it was produced in the atmosphere. 
B)  it was an aerobic heterotroph. 
C)  spontaneous generation occurred. 
D)  None of these answers is correct. 
A)  it was produced in the atmosphere. 
B)  it was an aerobic heterotroph. 
C)  spontaneous generation occurred. 
D)  None of these answers is correct.

Question 5

The idea that living things only originate from other living things is

Accepted Answer

A)  the theory of spontaneous generation. 
B)  the endosymbiotic theory. 
C)  Oparin and Haldane's hypothesis. 
D)  the theory of biogenesis. 
A)  the theory of spontaneous generation. 
B)  the endosymbiotic theory. 
C)  Oparin and Haldane's hypothesis. 
D)  the theory of biogenesis.

Question 6

Although they lived at different times, all of the following people performed experiments related to how life originated. The strongest support for biogenesis came from

Accepted Answer

A)  Miller. 
B)  Fox. 
C)  Pasteur. 
D)  Needham. 
A)  Miller. 
B)  Fox. 
C)  Pasteur. 
D)  Needham.

Question 7

Oxygen would interfere with organic molecules by

Accepted Answer

A)  increasing the weight (mass) of the molecules. 
B)  combining with the organic molecules and destroying them. 
C)  stopping all chemical reactions. 
D)  increasing the thickness of the atmosphere. 
A)  increasing the weight (mass) of the molecules. 
B)  combining with the organic molecules and destroying them. 
C)  stopping all chemical reactions. 
D)  increasing the thickness of the atmosphere.

Question 8

The nutrients utilized by the Archaea were most likely

Accepted Answer

A)  sugars and proteins. 
B)  CO2, CO, H2, H2S, N2, and S. 
C)  vitamins and minerals. 
D)  carbohydrates and fats. 
A)  sugars and proteins. 
B)  CO2, CO, H2, H2S, N2, and S. 
C)  vitamins and minerals. 
D)  carbohydrates and fats.

Question 9

The endosymbiotic theory is concerned with the development of

Accepted Answer

A)  prokaryotic cells. 
B)  eukaryotic cells. 
C)  coacervates. 
D)  prebionts. 
A)  prokaryotic cells. 
B)  eukaryotic cells. 
C)  coacervates. 
D)  prebionts.

Question 10

Oxygen was necessary in the atmosphere before

Accepted Answer

A)  photosynthesis could occur. 
B)  life could begin. 
C)  metabolism could occur. 
D)  aerobic respiration could occur. 
A)  photosynthesis could occur. 
B)  life could begin. 
C)  metabolism could occur. 
D)  aerobic respiration could occur.

Question 11

The spontaneous generation of living things from nonliving things was thought to be common many years ago. Louis Pasteur used specially constructed flasks with a long S-shaped neck to prove that

Accepted Answer

A)  spontaneous generation of organisms occurred in broth in the flasks. 
B)  oxygen was required to have living things present in the broth. 
C)  microorganisms had to enter the flask to get the broth to "spoil." 
D)  the broth "spoiled" even if organisms were not present. 
A)  spontaneous generation of organisms occurred in broth in the flasks. 
B)  oxygen was required to have living things present in the broth. 
C)  microorganisms had to enter the flask to get the broth to "spoil." 
D)  the broth "spoiled" even if organisms were not present.

Question 12

All of the following characteristics are necessary for a structure to be classified as a primitive cell except

Accepted Answer

A)  a boundary separating the cell from its watery surroundings. 
B)  DNA. 
C)  an ability to obtain energy from its surroundings. 
D)  macromolecules. 
A)  a boundary separating the cell from its watery surroundings. 
B)  DNA. 
C)  an ability to obtain energy from its surroundings. 
D)  macromolecules.

Question 13

If the first living things were autotrophs, they

Accepted Answer

A)  would have used organic molecules as a source of energy. 
B)  would have engaged in photosynthesis. 
C)  would have engaged in chemosynthesis. 
D)  All of these answers are true. 
A)  would have used organic molecules as a source of energy. 
B)  would have engaged in photosynthesis. 
C)  would have engaged in chemosynthesis. 
D)  All of these answers are true.

Question 14

If the first primitive cells on Earth were heterotrophs, they must have

Accepted Answer

A)  received organic molecules from autotrophs. 
B)  had DNA as their genetic material. 
C)  manufactured their own organic matter. 
D)  None of these answers is correct. 
A)  received organic molecules from autotrophs. 
B)  had DNA as their genetic material. 
C)  manufactured their own organic matter. 
D)  None of these answers is correct.

Question 15

Current evidence suggests that

Accepted Answer

A)  the "Big Bang" occurred about 13 billion years ago. 
B)  atoms from the "Big Bang" collected into stars and planets. 
C)  the Earth formed about 4.6 billion years ago. 
D)  All of these answers are correct. 
A)  the "Big Bang" occurred about 13 billion years ago. 
B)  atoms from the "Big Bang" collected into stars and planets. 
C)  the Earth formed about 4.6 billion years ago. 
D)  All of these answers are correct.

Question 16

What evidence supports the idea that life could have arrived on Earth from extraterrestrial sources?

Accepted Answer

A)  Many of the other planets have oxygen in their atmosphere. 
B)  Living things have been found on Mars. 
C)  Many meteorites have been found to contain organic molecules. 
D)  None of these answers is correct. 
A)  Many of the other planets have oxygen in their atmosphere. 
B)  Living things have been found on Mars. 
C)  Many meteorites have been found to contain organic molecules. 
D)  None of these answers is correct.

Question 17

According to Oparin's theory of the origin of life,

Accepted Answer

A)  the atmosphere of primitive Earth was an oxidizing atmosphere. 
B)  organic molecules were formed in the atmosphere and collected in the oceans. 
C)  the first living things would have used sunlight for energy. 
D)  All of these answers are true. 
A)  the atmosphere of primitive Earth was an oxidizing atmosphere. 
B)  organic molecules were formed in the atmosphere and collected in the oceans. 
C)  the first living things would have used sunlight for energy. 
D)  All of these answers are true.

Exam 19: The Origin of Life and the Evolution of Cells

When oxygen became part of the atmosphere, it came from

According to the currently popular scientific theory for the origin of life, which of the following occurred before all of the others?

All of the following would have been energy sources on primitive Earth EXCEPT

If the first living thing was produced on Earth,

The idea that living things only originate from other living things is

Although they lived at different times, all of the following people performed experiments related to how life originated. The strongest support for biogenesis came from

Oxygen would interfere with organic molecules by

The nutrients utilized by the Archaea were most likely

The endosymbiotic theory is concerned with the development of

Oxygen was necessary in the atmosphere before

The spontaneous generation of living things from nonliving things was thought to be common many years ago. Louis Pasteur used specially constructed flasks with a long S-shaped neck to prove that

All of the following characteristics are necessary for a structure to be classified as a primitive cell except

If the first living things were autotrophs, they

If the first primitive cells on Earth were heterotrophs, they must have

Current evidence suggests that

What evidence supports the idea that life could have arrived on Earth from extraterrestrial sources?

According to Oparin's theory of the origin of life,

What Is Biology

The Basics of Life: Chemistry

Organic Molecules: The Molecules of Life

Cell Structure and Function

Enzymes, Coenzymes, and Energy

Biochemical Pathways: Cellular Respiration

Biochemical Pathways: Photosynthesis

DNA and RNA: The Molecular Basis of Heredity

Cell Division: Proliferation and Reproduction

Patterns of Inheritance

Applications of Biotechnology

Diversity Within Species and Population Genetics

Evolution and Natural Selection

The Formation of Species and Evolutionary Change

Ecosystem Dynamics: The Flow of Energy and Matter

Community Interactions

Population Ecology

Evolutionary and Ecological Aspects of Behavior

The Classification and Evolution of Organisms

The Nature of Microorganisms

The Plant Kingdom

The Animal Kingdom

Materials Exchange in the Body

Nutrition: Food and Diet

The Bodys Control Mechanisms and Immunity

Human Reproduction, Sex, and Sexuality

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