Question 1

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 2

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 3

In pines a pollen grain reaches the nucellus via the

Accepted Answer

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

Question 4

Resins have a number of uses for human activities but are of no use to the plants that produce the resins.

Accepted Answer

A) True 
 B)False

Question 5

The ginkgo is frequently mistaken for an angiosperm tree because ________.

Accepted Answer

A)   it has broad, fan-shaped deciduous leaves.
B)   it is woody
C)   it is grown as an ornamental
D)   it is grown as a street tree
E)   All of these choices are correct.

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

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

Question 8

Bald cypress trees, like redwoods, are very resistant to decay.

Accepted Answer

A) True 
 B)False

Question 9

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 choices are correct.

Question 10

Gnetophytes have vessels in their xylem.

Accepted Answer

A) True 
 B)False

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

Another term for the megasporangium is the nucellus.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following structures or features is/are a part of pine needles (leaves) ?

Accepted Answer

A)   resin canals
B)   a hypodermis
C)   a thick cuticle
D)   sunken stomata
E)   All of these are correct.

Question 15

A mature seed consists of the seed coat, nutritive tissue, and ________.

Accepted Answer

A)   pollen grain
B)   fruit
C)   integument
D)   embryo
E)   All of these choices are correct.

Question 16

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.

Question 17

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 18

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 19

Meiosis occurs in pines in the microsporangia and in the

Accepted Answer

A)   micropyle.
B)   developing ovule.
C)   pollen grains.
D)   nucellus.
E)   egg.

Question 20

The sporophylls of pines are usually spirally arranged in strobili.

Accepted Answer

A) True 
 B)False

Exam 22: Introduction to Seed Plants: Gymnosperms

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

Correct AnswerverifiedShow Answer

The ginkgo is frequently mistaken for an angiosperm tree because ________.

Correct AnswerverifiedShow Answer

The chief source of newsprint in North America is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Resins have a number of uses for human activities but are of no use to the plants that produce the resins.

Correct AnswerverifiedShow Answer

Another term for the megasporangium is the nucellus.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following structures or features is/are a part of pine needles (leaves) ?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A mature seed consists of the seed coat, nutritive tissue, and ________.

Correct AnswerverifiedShow Answer

Meiosis occurs in pines in the microsporangia and in the

Correct AnswerverifiedShow Answer

A strobilus (pl. strobili) is ________.

Correct AnswerverifiedShow Answer

Pine leaf fascicles (clusters) usually

Correct AnswerverifiedShow Answer

Gnetophytes have vessels in their xylem.

Correct AnswerverifiedShow Answer

The sporophylls of pines are usually spirally arranged in strobili.

Correct AnswerverifiedShow Answer

In pines a pollen grain reaches the nucellus via the

Correct AnswerverifiedShow Answer

Bald cypress trees, like redwoods, are very resistant to decay.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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