Question 1

Male pine cones commonly take four years to mature.

Accepted Answer

A) True 
 B)False

Question 2

The sporophylls of pines are usually spirally arranged in strobili.

Accepted Answer

A) True 
 B)False

Question 3

The seeds of ginkgoes have a fleshy covering and look plumlike.

Accepted Answer

A) True 
 B)False

Question 4

Giant redwoods are easily damaged in forest fires because of their thin bark.

Accepted Answer

A) True 
 B)False

Question 5

Most of the pulpwood for paper today comes from pines.

Accepted Answer

A) True 
 B)False

Question 6

In pines a pollen grain reaches the nucellus via the

Accepted Answer

A)   archegonium.
B)   micropyle.
C)   pollen tube.
D)   embryo.
E)   megasporangium.

Question 7

Gymnosperms generally have broad leathery leaves.

Accepted Answer

A) True 
 B)False

Question 8

This is the largest group of living gymnosperms, comprising about 50 genera and 550 species.

Accepted Answer

A)   cycads
B)   gnetophytes
C)   conifers
D)   ginkgos
E)   none of these answers are correct

Question 9

A strobilus (pl.strobili) is ________________________.

Accepted Answer

A)   an asexual reproductive structure
B)   part of the gymnosperm gametophyte
C)   compact, spirally-arranged group of sporophylls
D)   found in liverworts
E)   found in flowering plants

Question 10

Which statement about the nucellus is INCORRECT?

Accepted Answer

A)   Nucellus tissue is found within the ovule of the gymnosperms.
B)   The nucellus is covered by the integuments.
C)   The nucellus plays a role in both male and female gametophytes.
D)   The food stored in the nucellus is used by the developing megagametophyte.
E)   The ovule, nucellus, and integument are diploid tissues.

Question 11

Pine leaf fascicles (clusters) usually

Accepted Answer

A)   remain for most of the life of the tree.
B)   are angular on all sides.
C)   all fall off, a few at a time, every growing season.
D)   consist of four to eight leaves or needles in all except one or two species.
E)   fall off within two to five years of their maturing.

Question 12

Which of the following is NOT a gnetophyte?

Accepted Answer

A)   Ephedra
B)   Podocarpus
C)   Welwitschia
D)   Gnetum
E)   joint fir

Question 13

In the life cycle of a typical conifer (e.g., a pine)

Accepted Answer

A)   pollen is produced in woody cones.
B)   pollen is produced in inconspicuous flowers.
C)   seeds are produced in woody cones.
D)   the pollen tube grows down through the style to reach the archegonium.
E)   there are two integuments surrounding the embryo sac. C

Question 14

The female gametophyte of pines usually contains two to six

Accepted Answer

A)   pollen grains.
B)   integument cells.
C)   archegonia.
D)   micropyles.
E)   pollen chambers.

Question 15

With the exception of a few woody vines, the growth form of the gymnosperms are __________________.

Accepted Answer

A)   woody trees or shrubs
B)   herbaceous
C)   parasitic on flowering plants
D)   seed-producing
E)   flower-producing A

Question 16

Early explorers in North America found numbers of pines stripped of their bark by Native Americans.The primary reason Native Americans did this was

Accepted Answer

A)   they wanted the bark for fuel.
B)   they were tapping the resin for various uses.
C)   they were trying to kill bark borer beetles.
D)   they used the phloem for food.
E)   they used the bark for shelter thatching.

Question 17

Edible or otherwise useful gymnosperms do not include

Accepted Answer

A)   horsetails.
B)   cycads.
C)   Ephedra (joint fir) .
D)   ginkgoes.
E)   kauri pines.

Question 18

The phylum Gingophyta is represented by _________ living species.

Accepted Answer

A)   three genera and 30
B)   one
C)   approximately 100, primarily north of the equator
D)   approximately 90, primarily in the tropics
E)   zero

Question 19

The mature male gametophyte of a pine consists of a germinated pollen grain with a pair of sperms in the pollen tube.

Accepted Answer

A) True 
 B)False

Question 20

Fungi play an important role in the growth of pines.

Accepted Answer

A) True 
 B)False  True

Exam 22: Introduction to Seed Plants: Gymnosperms

Male pine cones commonly take four years to mature.

Correct AnswerverifiedShow Answer

The sporophylls of pines are usually spirally arranged in strobili.

Correct AnswerverifiedShow Answer

The seeds of ginkgoes have a fleshy covering and look plumlike.

Correct AnswerverifiedShow Answer

Giant redwoods are easily damaged in forest fires because of their thin bark.

Correct AnswerverifiedShow Answer

Most of the pulpwood for paper today comes from pines.

Correct AnswerverifiedShow Answer

In pines a pollen grain reaches the nucellus via the

Correct AnswerverifiedShow Answer

Gymnosperms generally have broad leathery leaves.

Correct AnswerverifiedShow Answer

This is the largest group of living gymnosperms, comprising about 50 genera and 550 species.

Correct AnswerverifiedShow Answer

A strobilus (pl.strobili) is ________________________.

Correct AnswerverifiedShow Answer

Which statement about the nucellus is INCORRECT?

Correct AnswerverifiedShow Answer

Pine leaf fascicles (clusters) usually

Correct AnswerverifiedShow Answer

Which of the following is NOT a gnetophyte?

Correct AnswerverifiedShow Answer

In the life cycle of a typical conifer (e.g., a pine)

Correct AnswerverifiedC

The female gametophyte of pines usually contains two to six

Correct AnswerverifiedShow Answer

With the exception of a few woody vines, the growth form of the gymnosperms are __________________.

Correct AnswerverifiedA

Early explorers in North America found numbers of pines stripped of their bark by Native Americans.The primary reason Native Americans did this was

Correct AnswerverifiedShow Answer

Edible or otherwise useful gymnosperms do not include

Correct AnswerverifiedShow Answer

The phylum Gingophyta is represented by _________ living species.

Correct AnswerverifiedShow Answer

The mature male gametophyte of a pine consists of a germinated pollen grain with a pair of sperms in the pollen tube.

Correct AnswerverifiedShow Answer

Fungi play an important role in the growth of pines.

Correct AnswerverifiedTrue

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C

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A

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True