Raven Biology of Plants 8e Ray Evert, Susan Eichhorn Test Bank All Chapters 1

Raven Biology of Plants 8e Ray Evert, Susan Eichhorn (Test Bank All Chapters)1 Chapter 1: Botany: An Introduction Multiple-Choice Questions

1.Introduction; p. 2; easy; ans: c

The process of photosynthesis results in the formation of two substances essential to our existence: a.chlorophyll and water.b.electrons and protons.c.sugar and oxygen.d.sugar and water.e.chlorophyll and oxygen.

2.Evolution of Plants; p. 3; moderate; ans: d

Life existed on Earth as early as ______ years ago.a.300 to 400 thousand b.3 to 4 million c.300 to 400 million d.3 to 4 billion e.300 to 400 billion

3.Evolution of Plants; p. 3; moderate; ans: c

Which of the following statements about stromatolites is FALSE?a.They contain layers of microorganisms.b.They contain sediment.c.They are fossil structures, with none alive today.d.They can be formed by cyanobacteria.e.They provide information about the earliest forms of life.

4.Evolution of Plants; p. 4; moderate; ans: e

On Mars, there is evidence for the presence of water in the form of______.a.ice only.b.liquid water only c.snow only d.ice and liquid water but not snow e.ice, liquid water and snow

5.Evolution of Plants; p. 4; moderate; ans: a

Which of the following statements about proteinoid microspheres is FALSE?a.They are thought to be the first forms of life.b.They grow by the accumulation of additional proteinoid material.c.They are cell-like structures.d.They are assemblages of organic molecules.e.They can be produced in the laboratory. 1 / 4

2 Chapter 1 Botany: An Introduction

6. Evolution of Plants; p. 4; difficult; ans: b

Which of the following statements concerning primitive cells is FALSE?

• They used organic molecules to satisfy their energy requirements.
• They constructed new cells from organic molecules made via photosynthesis.
• They acquired the ability to grow.
• They acquired the ability to reproduce.
• They acquired the ability to pass on their characteristics to subsequent generations

• Evolution of Plants; p. 4: easy; ans: c

A heterotroph:

• is a “self-feeder.”
• uses energy from the sun to make food.
• is exemplified by a fungus.
• makes its own energy-rich molecules from simple inorganic materials.
• is exemplified by algae.

8. Evolution of Plants; pp. 4-5; moderate; ans: a

Which of the following statements about photosynthetic autotrophs is FALSE?

• They obtain their required organic compounds from external sources.
• They channel radiant energy into the biosphere.
• The word autotroph means “self-feeder.”
• They have a complex pigment system.
• An example of an autotroph is a plant.

9. Evolution of Plants; p. 5; difficult; ans: e

Which of the following statements concerning the earliest photosynthetic organisms is FALSE?

• They were simple compared to plants.
• They were more complex than primitive heterotrophs.
• They had a complex pigment system.
• They had a way of storing energy in an organic molecule.
• They have been found in rocks 4 billion years old.

10. Evolution of Plants; p. 5; easy; ans: b

The oxygen gas released in photosynthesis originates from:

• carbon dioxide.
• water.
• ozone.
• sugar.
• nitrates.

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Chapter 1 Botany: An Introduction 3

11. Evolution of Plants; p. 5; moderate; ans: b

Atmospheric levels of oxygen gas approached modern levels approximately ______ years ago.

• 5 billion
• 500 million
• 50 million
• 5 million
• 500 thousand

12. Evolution of Plants; p. 5; easy; ans: d

Ozone in the outer layer of the atmosphere has important consequences for living things in that it:

• is a pollutant.
• is involved directly in respiration.
• aids in the aggregation of molecules.
• absorbs ultraviolet rays from sunlight.
• is used by autotrophs to make sugars.

13. Evolution of Plants; p. 6; moderate ans: c

Respiration refers to the process by which organisms:

• absorb carbon dioxide under aerobic conditions.
• absorb oxygen.under anaerobic conditions.
• break down molecules under aerobic conditions.
• break down molecules under anaerobic conditions.
• produce sugars under aerobic conditions.

14. Evolution of Plants; p. 6; easy; ans: b

Prokaryotic cells differ from eukaryotic cells in that prokaryotic cells:

• lack chromosomes.
• lack a nuclear envelope.
• contain mitochondria.
• contain chloroplasts.
• contain genetic material.

15. Evolution of Plants; p. 6; easy; ans: a

Which are prokaryotic organisms?

• cyanobacteria and archaea
• oak trees and elephants
• archaea and humans
• dandelions and animals
• bacteria and amoebas

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4 Chapter 1 Botany: An Introduction

16. Evolution of Plants; p. 6; difficult; ans: e

The first cells on Earth were most likely:

• bacteria.
• autotrophs.
• eukaryotes.
• proteinoid microspheres.
• archaeans.

17. Evolution of Plants; p. 6; difficult; ans: e

Which of the following is NOT an adaptation of photosynthetic organisms to rocky coasts?

• a multicellular body
• strong cell walls
• structures to anchor their bodies
• food-conducting tissues
• pigment systems

18. Evolution of plants; p. 7; easy; ans: b

The function of the cuticle is:

• absorbing water.
• retarding water loss.
• anchoring the plant.
• providing support.
• carrying out photosynthesis.

19. Evolution of Plants; p. 7; moderate; ans: c

The function of stomata is:

• providing support.
• anchoring the plant.
• regulating the exchange of gases.
• transporting food.
• adding cells to the plant body.

20. Evolution of plants; p. 7; easy; ans: a

Which of the following statements concerning stomata is FALSE?.

• They form a waxy covering on all aboveground portions of the plant.
• They consist of a pair of guard cells.
• They are found in the epidermis.
• They help maintain a balance between water loss and oxygen and carbon dioxide requirements.
• They open and close.

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