Question 1

Which of the following gymnosperms is a cycad native to the United States?

Accepted Answer

A) Gnetum 
B) Zamia 
C) Tsuga 
D) Taxus 
E) Metasequoia 
A) Gnetum 
B) Zamia 
C) Tsuga 
D) Taxus 
E) Metasequoia

Question 2

Which of the following was NOT a step in the evolution of the ovule?

Accepted Answer

A) Retention of the megaspores in the megasporangium 
B) Production of only four megaspore mother cells per megasporangium 
C) Formation of a highly reduced endosporic megagametophyte 
D) Production of only one functional megaspore per megasporangium 
E) Development of the embryo within the megagametophyte 
A) Retention of the megaspores in the megasporangium 
B) Production of only four megaspore mother cells per megasporangium 
C) Formation of a highly reduced endosporic megagametophyte 
D) Production of only one functional megaspore per megasporangium 
E) Development of the embryo within the megagametophyte

Question 3

______ is a gnetophyte characterized by two strap-shaped leaves growing from a massive woody disk.

Accepted Answer

A) Rhopalotria 
B) Zamia 
C) Ephedra 
D) Welwitschia 
E) Gnetum 
A) Rhopalotria 
B) Zamia 
C) Ephedra 
D) Welwitschia 
E) Gnetum

Question 4

In pines, the immature male gametophyte consists of:

Accepted Answer

A) two prothallial cells, one generative cell, and one tube cell. 
B) one prothallial cell, two generative cells, and one tube cell. 
C) one prothallial cell, one generative cell, and two tube cells. 
D) two prothallial cells, two generative cells, and one tube cell. 
E) one prothallial cell, one generative cell, and one tube cell. 
A) two prothallial cells, one generative cell, and one tube cell. 
B) one prothallial cell, two generative cells, and one tube cell. 
C) one prothallial cell, one generative cell, and two tube cells. 
D) two prothallial cells, two generative cells, and one tube cell. 
E) one prothallial cell, one generative cell, and one tube cell.

Question 5

The exposed part of Welwitschia consists of a concave disc that produces only two strap-shaped leaves.

Accepted Answer

A) True 
 B)False

Question 6

The progymnosperms were unique among the woody plants of the Devonian period in producing secondary phloem.

Accepted Answer

A) True 
 B)False

Question 7

The seed-scale complex of an ovulate cone consists of:

Accepted Answer

A) a megasporophyll and two ovules. 
B) a megasporophyll and one bract. 
C) an ovuliferous scale and two ovules. 
D) two ovules and two bracts. 
E) an ovuliferous scale, two ovules, and one bract. 
A) a megasporophyll and two ovules. 
B) a megasporophyll and one bract. 
C) an ovuliferous scale and two ovules. 
D) two ovules and two bracts. 
E) an ovuliferous scale, two ovules, and one bract.

Question 8

In the pine life cycle, meiosis occurs in:

Accepted Answer

A) archegonia. 
B) microspores. 
C) microsporocytes. 
D) pollen grains. 
E) sporophylls. 
A) archegonia. 
B) microspores. 
C) microsporocytes. 
D) pollen grains. 
E) sporophylls.

Question 9

Cyanobacteria typically inhabit coralloid roots.

Accepted Answer

A) True 
 B)False

Question 10

The Bennettitales is an extinct group of gymnosperms.

Accepted Answer

A) True 
 B)False

Question 11

In cycads and Ginkgo, male and female gametophytes are produced on the same plant.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following statements about pine seeds is FALSE?

Accepted Answer

A) They are often shed from the cones during the first year following pollination. 
B) They are often dispersed by the wind. 
C) Some are dispersed only after the cones are scorched by fire. 
D) Some are dispersed by birds. 
E) Some are winged. 
A) They are often shed from the cones during the first year following pollination. 
B) They are often dispersed by the wind. 
C) Some are dispersed only after the cones are scorched by fire. 
D) Some are dispersed by birds. 
E) Some are winged.

Question 13

Which of the following statements concerning pollination drops is FALSE?

Accepted Answer

A) They contain sugars and amino acids. 
B) They contain proteins that function in pathogen defense. 
C) They prevent pollen grains from contacting the nucellus. 
D) They contain proteins that function in pollen development. 
E) They exude from the open end of ovules. 
A) They contain sugars and amino acids. 
B) They contain proteins that function in pathogen defense. 
C) They prevent pollen grains from contacting the nucellus. 
D) They contain proteins that function in pollen development. 
E) They exude from the open end of ovules.

Question 14

Microspore mother cells divide by mitosis, producing microsporocytes.

Accepted Answer

A) True 
 B)False

Question 15

Which extinct gymnosperms resembled modern cycads?

Accepted Answer

A) Seed ferns 
B) Cordaitales 
C) Bennettitales 
D) Ophioglossales 
E) Trimerophytes 
A) Seed ferns 
B) Cordaitales 
C) Bennettitales 
D) Ophioglossales 
E) Trimerophytes

Question 16

Just before fertilization, a gymnosperm ovule contains:

Accepted Answer

A) an embryo. 
B) antheridia. 
C) archegonia. 
D) megaspores. 
E) a seed coat. 
A) an embryo. 
B) antheridia. 
C) archegonia. 
D) megaspores. 
E) a seed coat.

Question 17

Which of the following statements about pine leaves is FALSE?

Accepted Answer

A) They have a thick cuticle. 
B) They have sunken stomata. 
C) They are spirally arranged and borne singly on the stem. 
D) They are arranged in indeterminate bundles called fascicles. 
E) Their vascular bundles are surrounded by transfusion tissue. 
A) They have a thick cuticle. 
B) They have sunken stomata. 
C) They are spirally arranged and borne singly on the stem. 
D) They are arranged in indeterminate bundles called fascicles. 
E) Their vascular bundles are surrounded by transfusion tissue.

Question 18

_________ is a conifer regarded as a "living fossil."

Accepted Answer

A) Tsuga 
B) Sequoiadendron semperiverens 
C) Metasequoia 
D) Taxodium 
E) Abies 
A) Tsuga 
B) Sequoiadendron semperiverens 
C) Metasequoia 
D) Taxodium 
E) Abies

Question 19

The pollen tube originally developed as a structure that permitted the male gametophyte to absorb nutrients during sperm formation.

Accepted Answer

A) True 
 B)False

Question 20

The tallest living plant is:

Accepted Answer

A) Sequoiadendron giganteum. 
B) Sequoiadendron semperiverens. 
C) Metasequoia. 
D) Taxodium. 
E) Pinus longaeva. 
A) Sequoiadendron giganteum. 
B) Sequoiadendron semperiverens. 
C) Metasequoia. 
D) Taxodium. 
E) Pinus longaeva.

Exam 18: Gymnosperms

Which of the following gymnosperms is a cycad native to the United States?

Which of the following was NOT a step in the evolution of the ovule?

______ is a gnetophyte characterized by two strap-shaped leaves growing from a massive woody disk.

In pines, the immature male gametophyte consists of:

The exposed part of Welwitschia consists of a concave disc that produces only two strap-shaped leaves.

The progymnosperms were unique among the woody plants of the Devonian period in producing secondary phloem.

The seed-scale complex of an ovulate cone consists of:

In the pine life cycle, meiosis occurs in:

Cyanobacteria typically inhabit coralloid roots.

The Bennettitales is an extinct group of gymnosperms.

In cycads and Ginkgo, male and female gametophytes are produced on the same plant.

Which of the following statements about pine seeds is FALSE?

Which of the following statements concerning pollination drops is FALSE?

Microspore mother cells divide by mitosis, producing microsporocytes.

Which extinct gymnosperms resembled modern cycads?

Just before fertilization, a gymnosperm ovule contains:

Which of the following statements about pine leaves is FALSE?

_________ is a conifer regarded as a "living fossil."

The pollen tube originally developed as a structure that permitted the male gametophyte to absorb nutrients during sperm formation.

The tallest living plant is:

Botany: an Introduction

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

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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