Question 1

Humans first appeared about ______ years ago.

Accepted Answer

A)  2000 
B)  200,000 
C)  2 million 
D)  20 million 
E)  200 million 
A)  2000 
B)  200,000 
C)  2 million 
D)  20 million 
E)  200 million C

Question 2

Xylem transports water through the plant body.

Accepted Answer

A) True 
 B)False  True

Question 3

In annuals, the stem becomes woody and covered with cork.

Accepted Answer

A) True 
 B)False  False

Question 4

Perennials have a life-span of only one year.

Accepted Answer

A) True 
 B)False

Question 5

The first cells on Earth were most likely:

Accepted Answer

A)  bacteria. 
B)  autotrophs. 
C)  eukaryotes. 
D)  proteinoid microspheres. 
E)  archaeans. 
A)  bacteria. 
B)  autotrophs. 
C)  eukaryotes. 
D)  proteinoid microspheres. 
E)  archaeans.

Question 6

In all ecosystems, heterotrophs are completely dependent on the productivity of all the following groups of organisms EXCEPT:

Accepted Answer

A)  animals. 
B)  autotrophs. 
C)  photosynthetic bacteria. 
D)  plants. 
E)  algae 
A)  animals. 
B)  autotrophs. 
C)  photosynthetic bacteria. 
D)  plants. 
E)  algae

Question 7

Respiration refers to the process by which organisms:

Accepted Answer

A)  absorb carbon dioxide under aerobic conditions. 
B)  absorb oxygen.under anaerobic conditions. 
C)  break down molecules under aerobic conditions. 
D)  break down molecules under anaerobic conditions. 
E)  produce sugars under aerobic conditions. 
A)  absorb carbon dioxide under aerobic conditions. 
B)  absorb oxygen.under anaerobic conditions. 
C)  break down molecules under aerobic conditions. 
D)  break down molecules under anaerobic conditions. 
E)  produce sugars under aerobic conditions.

Question 8

Carbon dioxide is the limiting factor for plant growth in the seas.

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

A)  5 billion 
B)  500 million 
C)  50 million 
D)  5 million 
E)  500 thousand 
A)  5 billion 
B)  500 million 
C)  50 million 
D)  5 million 
E)  500 thousand

Question 10

A heterotroph:

Accepted Answer

A)  is a "self-feeder." 
B)  uses energy from the sun to make food. 
C)  is exemplified by a fungus. 
D)  makes its own energy-rich molecules from simple inorganic materials. 
E)  is exemplified by algae. 
A)  is a "self-feeder." 
B)  uses energy from the sun to make food. 
C)  is exemplified by a fungus. 
D)  makes its own energy-rich molecules from simple inorganic materials. 
E)  is exemplified by algae.

Question 11

The development of agriculture started at least ______ years ago.

Accepted Answer

A)  1000 
B)  10,000 
C)  100,000 
D)  1 million 
E)  10 million 
A)  1000 
B)  10,000 
C)  100,000 
D)  1 million 
E)  10 million

Question 12

The function of phloem is to ______.

Accepted Answer

A)  retard water loss. 
B)  transport water 
C)  transport oxygen 
D)  photosynthesize 
E)  transport food 
A)  retard water loss. 
B)  transport water 
C)  transport oxygen 
D)  photosynthesize 
E)  transport food

Question 13

The function of stomata is:

Accepted Answer

A)  providing support. 
B)  anchoring the plant. 
C)  regulating the exchange of gases. 
D)  transporting food. 
E)  adding cells to the plant body. 
A)  providing support. 
B)  anchoring the plant. 
C)  regulating the exchange of gases. 
D)  transporting food. 
E)  adding cells to the plant body.

Question 14

Cytology is the study of:

Accepted Answer

A)  energy transformations. 
B)  plant form. 
C)  heredity. 
D)  fossil plants. 
E)  cell structure, function, and life histories. 
A)  energy transformations. 
B)  plant form. 
C)  heredity. 
D)  fossil plants. 
E)  cell structure, function, and life histories.

Question 15

Which of the following statements concerning stomata is FALSE?.

Accepted Answer

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

Question 16

Which are prokaryotic organisms?

Accepted Answer

A)  cyanobacteria and archaea 
B)  oak trees and elephants 
C)  archaea and humans 
D)  dandelions and animals 
E)  bacteria and amoebas 
A)  cyanobacteria and archaea 
B)  oak trees and elephants 
C)  archaea and humans 
D)  dandelions and animals 
E)  bacteria and amoebas

Question 17

Primary growth results in a thickening of the stem and root.

Accepted Answer

A) True 
 B)False

Question 18

The activity of the ______ results in a thickening of stems, branches, and roots.

Accepted Answer

A)  xylem and phloem regions 
B)  epidermal regions 
C)  vascular systems 
D)  lateral meristems 
E)  apical meristems 
A)  xylem and phloem regions 
B)  epidermal regions 
C)  vascular systems 
D)  lateral meristems 
E)  apical meristems

Question 19

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

Accepted Answer

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

Question 20

A seed is composed of three parts:

Accepted Answer

A)  root, stem, and leaves. 
B)  xylem, phloem, and seed coat. 
C)  seed coat, embryo, and food supply. 
D)  apical meristems, lateral meristems, and seed coat. 
E)  spore coat, embryo, and vascular system. 
A)  root, stem, and leaves. 
B)  xylem, phloem, and seed coat. 
C)  seed coat, embryo, and food supply. 
D)  apical meristems, lateral meristems, and seed coat. 
E)  spore coat, embryo, and vascular system.

Exam 1: Botany: an Introduction

Humans first appeared about ______ years ago.

Xylem transports water through the plant body.

In annuals, the stem becomes woody and covered with cork.

Perennials have a life-span of only one year.

The first cells on Earth were most likely:

In all ecosystems, heterotrophs are completely dependent on the productivity of all the following groups of organisms EXCEPT:

Respiration refers to the process by which organisms:

Carbon dioxide is the limiting factor for plant growth in the seas.

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

A heterotroph:

The development of agriculture started at least ______ years ago.

The function of phloem is to ______.

The function of stomata is:

Cytology is the study of:

Which of the following statements concerning stomata is FALSE?.

Which are prokaryotic organisms?

Primary growth results in a thickening of the stem and root.

The activity of the ______ results in a thickening of stems, branches, and roots.

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

A seed is composed of three parts:

The Molecular Composition of Plant Cells

The Plant Cell and the Cell Cycle

The Movement of Substances Into and Out of Cells

The Flow of Energy

Respiration

Photosynthesis, Light, and Life

Sexual Reproduction and Heredity

The Chemistry of Heredity and Gene Expression

Recombinant Dna Technology, Plant Biotechnology, and Genomics

The Process of Evolution

Systematics: the Science of Biological Diversity

Prokaryotes and Viruses

Fungi

Protists: Algae and Heterotrophic Protists

Bryophytes

Seedless Vascular Plants

Gymnosperms

Introduction to the Angiosperms

Evolution of the Angiosperms

Plants and People

Early Development of the Plant Body

Cells and Tissues of the Plant Body

The Root: Structure and Development

The Shoot: Primary Structure and Development

Secondary Growth in Stems

Regulating Growth and Development: the Plant Hormones

External Factors and Plant Growth

Plant Nutrition and Soils

The Movement of Water and Solutes in Plants

The Dynamics of Communities and Ecosystems

Global Ecology

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