Question 1

What is the purpose for the endosperm found within a seed?

Accepted Answer

A) Endosperm is the tissue specialized to form roots. 
B) It creates a waterproof covering that permits the seed to become dormant. 
C) It is a water-storage tissue. 
D) It is used as a food source for the developing embryo. 
A) Endosperm is the tissue specialized to form roots. 
B) It creates a waterproof covering that permits the seed to become dormant. 
C) It is a water-storage tissue. 
D) It is used as a food source for the developing embryo. D

Question 2

Which of the following would not be derived from vascular cambium?

Accepted Answer

A) bark 
B) xylem 
C) more undifferentiated cells 
D) phloem 
A) bark 
B) xylem 
C) more undifferentiated cells 
D) phloem A

Question 3

When you prune a rose plant by cutting off the tips of all the branches, the plant becomes more bushy because

Accepted Answer

A) auxins are then produced by the shoot to promote secondary growth. 
B) the auxins normally produced by the shoot tip were inhibiting the growth of lateral buds. 
C) pruning would stimulate the production of auxin that increases apical meristem growth. 
D) removing the source of auxin leads to the formation of new lateral buds. 
A) auxins are then produced by the shoot to promote secondary growth. 
B) the auxins normally produced by the shoot tip were inhibiting the growth of lateral buds. 
C) pruning would stimulate the production of auxin that increases apical meristem growth. 
D) removing the source of auxin leads to the formation of new lateral buds. B

Question 4

Growth of the cells of the lateral meristem is responsible for increasing the

Accepted Answer

A) number of lateral roots. 
B) number of formant buds. 
C) thickness of the stem. 
D) length of the stem. 
A) number of lateral roots. 
B) number of formant buds. 
C) thickness of the stem. 
D) length of the stem.

Question 5

Anthers are typically attached to filaments and elevated within the flower to

Accepted Answer

A) improve the transfer of pollen to a pollinator. 
B) improve the transfer of pollen to the adjacent stigma. 
C) prevent pollen from becoming stuck in the nectar. 
D) prevent the pollen from being blown away from the flower. 
A) improve the transfer of pollen to a pollinator. 
B) improve the transfer of pollen to the adjacent stigma. 
C) prevent pollen from becoming stuck in the nectar. 
D) prevent the pollen from being blown away from the flower.

Question 6

Mature pollen grains contain ____________________ sperm cells.

Accepted Answer

The answer of Mature pollen grains contain ____________________ sperm cells....

Question 7

Plant growth is indeterminate and animal growth is determinant. Why is indeterminate growth more beneficial to plants than to animals?

Accepted Answer

A) Plants are stationary in their habitat, whereas animals can move; indeterminate growth allows a plant to respond to environmental conditions. 
B) Plants are commonly eaten by animals, whereas animals are rarely eaten by plants. 
C) Indeterminate growth allows plants to become larger than animals. 
D) Indeterminate growth allows plants to avoid reproducing when environmental conditions are unfavorable. 
A) Plants are stationary in their habitat, whereas animals can move; indeterminate growth allows a plant to respond to environmental conditions. 
B) Plants are commonly eaten by animals, whereas animals are rarely eaten by plants. 
C) Indeterminate growth allows plants to become larger than animals. 
D) Indeterminate growth allows plants to avoid reproducing when environmental conditions are unfavorable.

Question 8

In plants double fertilization means that

Accepted Answer

A) the zygote has twice the diploid number of chromosomes. 
B) two pollen grains are needed to fertilize an egg. 
C) one sperm fertilizes two eggs. 
D) one sperm fertilizes an egg, another sperm fertilizes another cell in the embryo sac. 
A) the zygote has twice the diploid number of chromosomes. 
B) two pollen grains are needed to fertilize an egg. 
C) one sperm fertilizes two eggs. 
D) one sperm fertilizes an egg, another sperm fertilizes another cell in the embryo sac.

Question 9

Some plants can sense the duration of light or dark during a 24-hour period.

Accepted Answer

A) True 
 B)False

Question 10

If you were to drive a nail into the trunk of a tree and come back 10 years later, where would you find the nail?

Accepted Answer

A) Higher than where you drove it in because, as the trunk lengthens, the nail will move upward. 
B) At the same height that you originally placed it because trees grow in length only at their tips. 
C) Lower than where you drove it in because plants grow down from their shoot apical meristems, continuously pushing the trunk underground. 
D) In the branches because the dermal tissues move up the trunk, whereas the ground tissues move down as a result of growth. 
A) Higher than where you drove it in because, as the trunk lengthens, the nail will move upward. 
B) At the same height that you originally placed it because trees grow in length only at their tips. 
C) Lower than where you drove it in because plants grow down from their shoot apical meristems, continuously pushing the trunk underground. 
D) In the branches because the dermal tissues move up the trunk, whereas the ground tissues move down as a result of growth.

Question 11

Which of the following would be haploid?

Accepted Answer

A) pollen 
B) guard cells 
C) root hairs 
D) all of the above 
A) pollen 
B) guard cells 
C) root hairs 
D) all of the above

Question 12

In order to fertilize an egg, a pollen grain must first arrive at the ____________________.

Accepted Answer

The answer of In order to fertilize an egg, a...

Question 13

Sexual reproduction in mosses and angiosperms result in a zygote and seed, respectively. In what way(s)is the seed superior to the zygote?

Accepted Answer

A) The zygote must grow immediately, but the seed can lie dormant until growth conditions are favorable. 
B) The seed carries its own food to start life, whereas the zygote is nourished by the female gametophyte. 
C) The seed has a coat, which protects it from the environment, whereas the zygote lacks a coat. 
D) all of the above 
A) The zygote must grow immediately, but the seed can lie dormant until growth conditions are favorable. 
B) The seed carries its own food to start life, whereas the zygote is nourished by the female gametophyte. 
C) The seed has a coat, which protects it from the environment, whereas the zygote lacks a coat. 
D) all of the above

Question 14

After plant gametes fuse, they undergo mitosis to produce the

Accepted Answer

A) spore. 
B) sporophyte. 
C) gametophyte. 
D) flower. 
A) spore. 
B) sporophyte. 
C) gametophyte. 
D) flower.

Question 15

The outer bark on trees often appears cracked and uneven because

Accepted Answer

A) different regions of the bark grow at different rates. 
B) the cork cambium reabsorbs some of the bark. 
C) increases in stem length stretch the bark. 
D) increases in stem thickness stretch the bark. 
A) different regions of the bark grow at different rates. 
B) the cork cambium reabsorbs some of the bark. 
C) increases in stem length stretch the bark. 
D) increases in stem thickness stretch the bark.

Question 16

The gene-for-gene recognition immune response involves

Accepted Answer

A) plant alleles that attack matching alleles in pathogens. 
B) crossing-over between plant alleles and pathogen alleles. 
C) production of antibodies by plants in response to antigens produced by pathogens. 
D) production of proteins by plants that protect against pathogens with a particular genetic makeup. 
A) plant alleles that attack matching alleles in pathogens. 
B) crossing-over between plant alleles and pathogen alleles. 
C) production of antibodies by plants in response to antigens produced by pathogens. 
D) production of proteins by plants that protect against pathogens with a particular genetic makeup.

Question 17

Most flowering plants rely on animals rather than wind to transport pollen.

Accepted Answer

A) True 
 B)False

Question 18

How might the observation that the percentage of plant species with red foliage is greatest among high-elevation plants be explained?

Accepted Answer

A) Atmospheric composition at high elevation reduces the strength of the wavelengths that normally support photosynthesis. 
B) High-elevation soils have above-average concentrations of iron, which accumulated to produce iron oxide within the foliage. 
C) The red wavelengths exacerbate dehydration at high elevation, so mountain plants reflect it from their surfaces. 
D) Red pigments absorb ultraviolet radiation, which is more intense at high elevation. 
A) Atmospheric composition at high elevation reduces the strength of the wavelengths that normally support photosynthesis. 
B) High-elevation soils have above-average concentrations of iron, which accumulated to produce iron oxide within the foliage. 
C) The red wavelengths exacerbate dehydration at high elevation, so mountain plants reflect it from their surfaces. 
D) Red pigments absorb ultraviolet radiation, which is more intense at high elevation.

Question 19

During pollination, pollen is moved from

Accepted Answer

A) stigmas to sepals. 
B) anthers to stigmas. 
C) ovules to anthers. 
D) carpels to stamens. 
A) stigmas to sepals. 
B) anthers to stigmas. 
C) ovules to anthers. 
D) carpels to stamens.

Question 20

Meristem cells in plants are similar to ____________________ cells in vertebrates.

Accepted Answer

The answer of Meristem cells in plants are similar to...

Exam 36: Plant Growth and Reproduction

What is the purpose for the endosperm found within a seed?

Which of the following would not be derived from vascular cambium?

When you prune a rose plant by cutting off the tips of all the branches, the plant becomes more bushy because

Growth of the cells of the lateral meristem is responsible for increasing the

Anthers are typically attached to filaments and elevated within the flower to

Mature pollen grains contain ____________________ sperm cells.

Plant growth is indeterminate and animal growth is determinant. Why is indeterminate growth more beneficial to plants than to animals?

In plants double fertilization means that

Some plants can sense the duration of light or dark during a 24-hour period.

If you were to drive a nail into the trunk of a tree and come back 10 years later, where would you find the nail?

Which of the following would be haploid?

In order to fertilize an egg, a pollen grain must first arrive at the ____________________.

Sexual reproduction in mosses and angiosperms result in a zygote and seed, respectively. In what way(s)is the seed superior to the zygote?

After plant gametes fuse, they undergo mitosis to produce the

The outer bark on trees often appears cracked and uneven because

The gene-for-gene recognition immune response involves

Most flowering plants rely on animals rather than wind to transport pollen.

How might the observation that the percentage of plant species with red foliage is greatest among high-elevation plants be explained?

During pollination, pollen is moved from

Meristem cells in plants are similar to ____________________ cells in vertebrates.

The Nature of Science and the Characteristics of Life

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Stem Cells, Cancer, and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

Dna and Genes

From Gene to Protein

Dna Technology

How Evolution Works

Evolution of Populations

Speciation and the Origins of Biological Diversity

The Evolutionary History of Life

The Biosphere

Growth of Populations

Ecological Communities

Ecosystems

Global Change

Internal Organization and Homeostasis

Nutrition and Digestion

Circulation and Gas Exchange

Animal Hormones

Nervous and Sensory Systems

Skeletons, Muscles, and Movement

Defenses Against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

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