Question 1

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.

Question 2

The endosymbiotic theory is concerned with the development of

Accepted Answer

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

Question 3

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.

Question 4

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.

Question 5

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.

Question 6

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

Question 7

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.

Question 8

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.

Question 9

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.

Question 10

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.

Question 11

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.

Question 12

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.

Question 13

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.

Question 14

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.

Question 15

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.

Question 16

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.

Question 17

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.

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

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

Correct Answer
verified

If the first living things were autotrophs, they

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

Oxygen was necessary in the atmosphere before

Correct Answer
verified

The endosymbiotic theory is concerned with the development of

Correct Answer
verified

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

Correct Answer
verified

The nutrients utilized by the Archaea were most likely

Correct Answer
verified

Current evidence suggests that

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

When oxygen became part of the atmosphere, it came from

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

Oxygen would interfere with organic molecules by

Correct Answer
verified

If the first living thing was produced on Earth,

Correct Answer
verified

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

Correct Answer
verified

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

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

Correct AnswerverifiedShow Answer

If the first living things were autotrophs, they

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Oxygen was necessary in the atmosphere before

Correct AnswerverifiedShow Answer

The endosymbiotic theory is concerned with the development of

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The nutrients utilized by the Archaea were most likely

Correct AnswerverifiedShow Answer

Current evidence suggests that

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

When oxygen became part of the atmosphere, it came from

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Oxygen would interfere with organic molecules by

Correct AnswerverifiedShow Answer

If the first living thing was produced on Earth,

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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