Question 1

Gnetophytes have vessels in their xylem.

Accepted Answer

A) True 
 B)False

Question 2

Pines have vessels in the xylem, while all other gymnosperms have tracheids.

Accepted Answer

A) True 
 B)False

Question 3

The oldest known living organisms are believed to be redwoods.

Accepted Answer

A) True 
 B)False

Question 4

Joint firs (Ephedra), which superficially resemble horsetails,

Accepted Answer

A)  are somewhat shrubby inhabitants of drier regions. 
B)  are confined to temperate deserts in southwestern Africa. 
C)  have photosynthetic leaves. 
D)  are in the same division as cycads. 
E)  produce male and female reproductive structures in the same strobili. 
A)  are somewhat shrubby inhabitants of drier regions. 
B)  are confined to temperate deserts in southwestern Africa. 
C)  have photosynthetic leaves. 
D)  are in the same division as cycads. 
E)  produce male and female reproductive structures in the same strobili.

Question 5

The Pacific Yew tree is a source of an anticancer drug called taxol.

Accepted Answer

A) True 
 B)False

Question 6

Which of the following is NOT associated with conifers?

Accepted Answer

A)  hypodermis 
B)  resin canals 
C)  albuminous cells 
D)  vessel elements and fibers 
E)  soft wood 
A)  hypodermis 
B)  resin canals 
C)  albuminous cells 
D)  vessel elements and fibers 
E)  soft wood

Question 7

Which of the following is favored for making archery bows and longbows?

Accepted Answer

A)  junipers 
B)  cedars 
C)  yews 
D)  hemlocks 
E)  spruces 
A)  junipers 
B)  cedars 
C)  yews 
D)  hemlocks 
E)  spruces

Question 8

Conifers (Division Coniferophyta)date back to the

Accepted Answer

A)  Devonian period. 
B)  Permian period. 
C)  Triassic period. 
D)  Carboniferous period. 
E)  Silurian period. 
A)  Devonian period. 
B)  Permian period. 
C)  Triassic period. 
D)  Carboniferous period. 
E)  Silurian period.

Question 9

The chief source of newsprint in North America is

Accepted Answer

A)  white spruce. 
B)  red cedar. 
C)  eastern and western white pines. 
D)  sitka spruce. 
E)  balsam fir. 
A)  white spruce. 
B)  red cedar. 
C)  eastern and western white pines. 
D)  sitka spruce. 
E)  balsam fir.

Question 10

Vascular plants include both seed-producing and seedless groups.Which of the following represents a significant adaptive benefit for seed-producing plants?

Accepted Answer

A)  A protective seed coat surrounding the embryo. 
B)  A supply of food. 
C)  Ability to remain dormant. 
D)  Ability to survive extreme drought. 
E)  All of these. 
A)  A protective seed coat surrounding the embryo. 
B)  A supply of food. 
C)  Ability to remain dormant. 
D)  Ability to survive extreme drought. 
E)  All of these.

Question 11

Two of the original four cells in a pine pollen grain enter a pollen tube; one of these two, which after division eventually gives rise to sperms, is the

Accepted Answer

A)  generative cell. 
B)  sterile cell. 
C)  tube cell. 
D)  nucellar cell. 
E)  spermatogenous cell. 
A)  generative cell. 
B)  sterile cell. 
C)  tube cell. 
D)  nucellar cell. 
E)  spermatogenous cell.

Question 12

Most gymnosperms are wind pollinated.The exception is the __________, where pollen is transferred from microsporangiate strobili to megasporangiate strobili by beetles.

Accepted Answer

A)  pines 
B)  joint firs 
C)  cycads 
D)  juniper 
E)  redwood 
A)  pines 
B)  joint firs 
C)  cycads 
D)  juniper 
E)  redwood

Question 13

Which of the following is an aril?

Accepted Answer

A)  Nutritive tissue surrounding the female gametophyte of conifers. 
B)  An alternate name for a pine needle. 
C)  A fleshy cuplike covering surrounding the ovule of a yew. 
D)  A light, airy seed. 
E)  All of these answers are correct. 
A)  Nutritive tissue surrounding the female gametophyte of conifers. 
B)  An alternate name for a pine needle. 
C)  A fleshy cuplike covering surrounding the ovule of a yew. 
D)  A light, airy seed. 
E)  All of these answers are correct.

Question 14

Which of the following is common to both cycads and pines?

Accepted Answer

A)  leaf form and size 
B)  flagella present on the sperms 
C)  male and female strobili produced on separate plants 
D)  both megaspores and microspores produced 
E)  none of these answers are correct 
A)  leaf form and size 
B)  flagella present on the sperms 
C)  male and female strobili produced on separate plants 
D)  both megaspores and microspores produced 
E)  none of these answers are correct

Question 15

Which of the following is common to both ginkgoes and pines?

Accepted Answer

A)  flagella on the sperms 
B)  broad leaves 
C)  soft wood 
D)  male and female trees 
E)  antheridia 
A)  flagella on the sperms 
B)  broad leaves 
C)  soft wood 
D)  male and female trees 
E)  antheridia

Question 16

The specific cells of pines that develop into pollen grains are

Accepted Answer

A)  sperms. 
B)  megaspores. 
C)  nucellus cells. 
D)  microspores. 
E)  eggs. 
A)  sperms. 
B)  megaspores. 
C)  nucellus cells. 
D)  microspores. 
E)  eggs.

Question 17

Albuminous cells of pines apparently perform the same function as

Accepted Answer

A)  tracheids. 
B)  companion cells. 
C)  laticifers. 
D)  vessel elements. 
E)  parenchyma cells. 
A)  tracheids. 
B)  companion cells. 
C)  laticifers. 
D)  vessel elements. 
E)  parenchyma cells.

Question 18

Conifer resins are a source of which of the following?

Accepted Answer

A)  turpentine 
B)  dammar 
C)  rosin 
D)  amber 
E)  all of these answers are correct 
A)  turpentine 
B)  dammar 
C)  rosin 
D)  amber 
E)  all of these answers are correct

Question 19

Pollen grains of pines are brought through the microphyle onto the nucellus as the fluid from the micropyle evaporates.

Accepted Answer

A) True 
 B)False

Question 20

Some gymnosperms produce only a single seed in their female cones.

Accepted Answer

A) True 
 B)False

Exam 22: Introduction to Seed Plants: Gymnosperms

Gnetophytes have vessels in their xylem.

Pines have vessels in the xylem, while all other gymnosperms have tracheids.

The oldest known living organisms are believed to be redwoods.

Joint firs (Ephedra), which superficially resemble horsetails,

The Pacific Yew tree is a source of an anticancer drug called taxol.

Which of the following is NOT associated with conifers?

Which of the following is favored for making archery bows and longbows?

Conifers (Division Coniferophyta)date back to the

The chief source of newsprint in North America is

Vascular plants include both seed-producing and seedless groups.Which of the following represents a significant adaptive benefit for seed-producing plants?

Two of the original four cells in a pine pollen grain enter a pollen tube; one of these two, which after division eventually gives rise to sperms, is the

Most gymnosperms are wind pollinated.The exception is the __________, where pollen is transferred from microsporangiate strobili to megasporangiate strobili by beetles.

Which of the following is an aril?

Which of the following is common to both cycads and pines?

Which of the following is common to both ginkgoes and pines?

The specific cells of pines that develop into pollen grains are

Albuminous cells of pines apparently perform the same function as

Conifer resins are a source of which of the following?

Pollen grains of pines are brought through the microphyle onto the nucellus as the fluid from the micropyle evaporates.

Some gymnosperms produce only a single seed in their female cones.

What Is Plant Biology

The Nature of Life

Cells

Tissues

Roots and Soils

Stems

Leaves

Flowers, Fruits, and Seeds

Water in Plants

Plant Metabolism

Growth

Meiosis and Alternation of Generation

Genetics

Plant Breeding and Propagation

Evolution

Plant Names and Classification

Domain Kingdombacteria, Domain King-Domarchaea, and Viruses

Kingdom Protista

Kingdom Fungi

Introduction to the Plant Kingdom: Bryophytes

The Seedless Vascular Plants: Ferns and Their Relatives

Seed Plants: Angiosperms

Flowering Plants and Civilization

Ecology

Biomes

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