Deck 24: Plants: the Diversity of Life 4

Question 1

Elaborate leaves called "fronds" are found in which group of seedless vascular plants?

A)green algae
B)gymnosperms
C)mosses
D)ferns

Answer 1

D

Question 2

Plants are different from all other photosynthetic organisms in that they:

A)are eukaryotic.
B)are green.
C)have photosynthetic pigments.
D)develop from embryos.

Answer 2

D

Question 3

In all plants,the diploid (2n)phase produces:

A)sperm and/or eggs.
B)flowers.
C)spores.
D)roots.

Answer 3

C

Question 4

Bryophytes lack:

A)chlorophyll.
B)spores.
C)gametes.
D)vascular tissue.

Question 5

Woody plants have which two compounds in their cell walls?

A)chlorophyll and cellulose
B)cellulose and lignin
C)chitin and cellulose
D)chitin and lignin

Question 6

Pollen grains contain:

A)spores.
B)eggs.
C)sperm.
D)wings.

Question 7

In general,a seed is a:

A)protected plant embryo with a food supply.
B)reproductive structure that requires pollen to become active.
C)a large spore that grows into the gametophyte.
D)plant ovary.

Question 8

In alternation of generations in all plants,the multicellular haploid (1n)organism is referred to as the:

A)zygote.
B)gamete.
C)sporophyte.
D)gametophyte.

Question 9

An advantage that pollen grain evolution gave gymnosperms was:

A)less energy to produce than gametes.
B)airborne sperm transport over great distances.
C)spores with a small food supply inside.
D)eggs no longer had to swim.

Question 10

A major difference between gymnosperm and angiosperm seeds is that:

A)gymnosperm seeds are haploid.
B)angiosperm seeds are haploid.
C)gymnosperm seeds are larger.
D)angiosperm seeds are larger.
E)gymnosperm seeds are not surrounded by fruit.

Question 11

Besides cell walls,features often found in plant cells but not in animal cells are:

A)spindle-shaped centrioles.
B)water-filled central vacuoles.
C)mitochondria.
D)nuclei.
E)cell membranes.

Question 12

Both mosses and ferns "show their aquatic ancestry" because they:

A)lack a water-repellent cuticle.
B)typically require water for sperm delivery to the egg.
C)have roots that must remain wet at all times.
D)require water for egg laying.

Question 13

Which of the following is characteristic of plants?

A)chloroplasts
B)hyphae
C)a mycelium
D)a cell wall made of chitin

Question 14

Which of the following weather conditions would you expect to have the greatest negative impact on the sexual reproduction of mosses and ferns?

A)cool, damp, and windy conditions
B)above-average temperatures for a few days
C)a long dry period
D)excessively wet and rainy conditions

Question 15

What trend do we observe as we look at alternation of generations and plant kingdom evolution?

A)The sporophyte generation is dominant in more advanced plants.
B)The gametophyte generation is dominant in more advanced plants.
C)Only ferns show a significant gametophyte generation.
D)Only gymnosperms show a significant sporophyte generation.

Question 16

Which evolutionary plant innovation eliminated the need for sperm to swim through water to fertilize an egg,resulting in plants being truly adapted for reproduction on land?

A)independent gametophyte
B)rhizoids
C)fruit
D)pollen

Question 17

Gymnosperms were the dominant form of plant life on land:

A)around the time the dinosaurs came to dominance.
B)until the discovery of fire by humans.
C)before ferns evolved.
D)about 20 million years ago.

Question 18

You are a naturalist traveling with a group of explorers in a valley of the Amazon rainforest.In a particularly wet area,you see a beautiful carpet of small plants.You notice tiny flowers on most of the plants.To which group do these plants belong?

A)hornworts
B)mosses
C)seedless vascular plants
D)gymnosperms
E)angiosperms

Question 19

You are a naturalist traveling with a group of explorers in the higher elevations of a jungle.You see an unfamiliar-looking,tall,tree-like plant.It is producing seeds that are attached directly to a stem,but there appears to be no evidence of flowers associated with the seeds.To which group of plants does the tree belong?

A)hornworts
B)angiosperms
C)ferns
D)gymnosperms

Question 20

Which statement about conifers such as the spruce tree is most accurate?

A)They comprise a small percentage of angiosperm species.
B)They are rare, fruit-bearing gymnosperms.
C)They comprise about three-fourths of all gymnosperm species.
D)They are the largest seedless vascular plants.
E)Male conifers produce cones while female trees produce flowers.

Question 21

As a more recently evolved plant group,angiosperms completely lack a gametophyte generation.

Question 22

A currently accepted hypothesis for gravitropism in plants is that:

A)sedimentation of organelles triggers hormone release.
B)microscopic eyespots trigger upward (skyward)growth.
C)ground contact inhibits stem growth while air stimulates it.
D)bending of leaves in response to gravity triggers growth in the opposite direction.

Question 23

Which of the following would be an example of an adaptation for seed dispersal?

A)phototropism
B)pinecones
C)nectar production
D)seeds wrapped in burrs
E)deciduous cycles

Question 24

A single type of pinecone is responsible for the production of both pollen and eggs.

Question 25

The hormone IAA helps plants to respond to and grow toward a light source by:

A)slowing growth under low light conditions.
B)increasing mitosis on the side of the shoot facing light.
C)elongating cells on the opposite side of the shoot facing light.
D)triggering release of growth factors at the tip of the stem.

Question 26

In plant life cycles,meiosis produces spores.

Question 27

The reserve food in angiosperm seeds is stored in a special tissue called:

A)nectar.
B)the sporophyte.
C)endosperm.
D)the seed coat.

Question 28

The life cycle of mosses contains only a haploid generation.

Question 29

Ferns differ from mosses in that ferns contain vascular tissue and mosses do not.

Question 30

Most angiosperms are pollinated with the help of:

A)animals.
B)wind.
C)water currents.
D)farming techniques.
E)fungi.

Question 31

The life cycle of flowering plants contains both sporophytes and gametophytes.

Question 32

Some species of mosses have pollen that does not have to move through water to reach an egg.

Question 33

Trees that intentionally lose their leaves according to coordinated,seasonal schedules are:

A)deciduous.
B)gametophytes.
C)sporophytes.
D)thigmotropic.

Question 34

Fruit produced by angiosperms is most closely associated with which function?

A)pollination
B)seed dispersal
C)endosperm production
D)nourishing the embryo
E)thigmotropism

Question 35

In plant life cycles,eggs and sperm are produced by mitosis.

Question 36

Horsetails are a type of seedless vascular plant.

Question 37

Endosperm is the nutritional tissue found within a seed.

Question 38

You see a plant stem wrapped around a telephone pole,spiraling upward.This plant is demonstrating:

A)geotropism.
B)thigmotropism.
C)phototropism.
D)photoperiodism.

Question 39

Diminished rewards of photosynthesis in winter along with the negatives of water loss and leaf damage cause many trees to exhibit:

A)photoperiodism.
B)dormancy.
C)thigmotropism.
D)phototropism.

Question 40

Long-night plants that only flower when they encounter a certain minimum number of hours of darkness are an example of:

A)geotropism.
B)thigmotropism.
C)phototropism.
D)photoperiodism.

Question 41

Although they do not possess the nervous and muscular systems animals do,plants are able to physically respond to their environments.Evaluate and support this statement.

Question 42

Refer to the figure below, and then answer the following question(s).

The missing label indicated by a "1" corresponds to the:

A)cell wall.
B)central vacuole.
C)cell membrane.
D)chloroplast.

Question 43

Movement of the hormone ________ to different areas of a plant to promote growth is one of the ways a plant is able to respond to external signals.

Question 44

The story of plant evolution could be described as a story of how plants broke their dependence on aquatic existence.Explain how you could support this statement.

Question 45

Refer to the figure below, and then answer the following question(s).

The missing label indicated by a "2" corresponds to the:

A)cell wall.
B)central vacuole.
C)cell membrane.
D)chloroplast.

Question 46

Ginkgo biloba belongs in the plant group ________.

Question 47

Refer to the figure below, and then answer the question that follows.

The missing label indicated by a "3" corresponds to the:

A)multicellular sporophyte.
B)multicellular gametophyte.
C)gametes.
D)spores.

Question 48

________ is the angiosperm tissue that is intended for nutrition of the embryo and not animal seed dispersal but is nonetheless an important food source for people.________ and ________ are examples of crops in which the endosperm is an important food source for people.

Question 49

In some areas of the world where there are large numbers of pines,everything is covered in the spring with a yellow dust that turns out,upon examination,to be pine pollen.Why must conifers produce so much pollen,and why do we not see as much pollen produced by a field of flowers?

Question 50

The three main kinds of seedless vascular plants are: ________,________,and ________.

Question 51

A spore growing into a plant that will produce sperm or eggs describes the ________ generation of a plant's life cycle.