Question 1

Plant leaves typically show determinate growth: that is,they reach a certain size and then stop growing.A researcher wishes to determine if leaf growth can be changed from determinate to indeterminate.In setting up an experiment to test this question,the researcher would have to alter the function of which plant part?

Accepted Answer

A)   Blade
B)   Mesophyll
C)   Lateral meristem
D)   Root apical meristem
E)   Shoot apical meristemF) B) and E)
G) A) and B)

Question 2

Herbivorous animals and insects prefer to graze on young,growing stems and leaves rather than on fully grown structures.These tender young plants are non-lignified and flexible,as opposed to the mature structures which have been strengthened by _______tissue.

Accepted Answer

A)   xylem
B)   periderm
C)   sclerenchyma
D)   parenchyma
E)   collenchymaF) A) and B)
G) C) and D)

Question 3

In addition to permitting gas exchange,stomata allow water to evaporate from plant cells.This suggests that a plant,in order to maximize photosynthesis without dehydrating,would typically keep its stomata

Accepted Answer

A)   open day and night.
B)   closed day and night.
C)   open during daylight and closed at night.
D)   open at night and closed during daylight.
E)   open when the cell is high in CO2 and closed when it is low in CO2.F) A) and C)
G) C) and D)

Question 4

A student views a cross section of a plant stem under a microscope.She decides that the plant must be a monocot,rather than a eudicot,because its vascular tissue

Accepted Answer

A)   is arranged in vascular bundles.
B)   contains phloem but not xylem.
C)   contains xylem but not phloem.
D)   has vascular bundles arranged in a circle.
E)   has vascular bundles scattered throughout.F) A) and B)
G) A) and C)

Question 5

The veins of a leaf consist of

Accepted Answer

A)   stomata.
B)   guard cells.
C)   vascular cells.
D)   epidermal cells
E)   mesophyll cells.F) B) and C)
G) B) and E)

Question 6

The repeating unit from which the shoots of flowering plants are constructed is the _______.

Accepted Answer

The answer of The repeating unit from which the shoots...

Question 7

A plant that produces protoderm,ground meristem,and procambium,but does not produce lateral meristems,undergoes

Accepted Answer

A)   primary growth only.
B)   secondary growth only.
C)   primary and secondary growth.
D)   secondary and tertiary growth.
E)   primary and secondary,but not woody,growth.F) C) and E)
G) A) and B)

Question 8

The original purpose of artificial selection in domesticated crop plants was to

Accepted Answer

A)   learn more about plant genetics.
B)   select for desirable food characteristics.
C)   prevent the loss of wild plant species.
D)   develop many new plants from a single wild plant.
E)   create brighter colored vegetables.F) A) and B)
G) A) and C)

Question 9

Because plants are unable to move,they must be able to perform a number of functions.Which is not one of those functions?

Accepted Answer

A)   Using the resources in their immediate environment
B)   Adapting to a stationary (sessile) lifestyle
C)   Developing and growing throughout their lives
D)   Regulating their growth to respond to the environment
E)   Developing an external skeleton to divert predatorsF) B) and D)
G) A) and B)

Question 10

An agriculture lab is trying to improve a type of tomato so that it produces large fruits even under very hot,dry conditions.To do this,they must first identify the genes responsible for the tomato's response to temperature and moisture.Which experimental approach would be most helpful in doing this?

Accepted Answer

A)   Comparing the target tomato's genome with those of all tomatoes having large fruits
B)   Comparing the target tomato's genome with that of a mutant having all desired characteristics
C)   Locating other plants that grow at high temperature and low moisture levels and looking for unusual genes
D)   Growing the target tomato at a variety of temperature and moisture levels and planting several generations of seeds from the largest fruits
E)   Growing the target tomato at a variety of temperature and moisture levels and planting several generations of seeds from the fruits at the highest temperature and lowest moisture levelsF) A) and D)
G) A) and B)

Exam 24: The Plant Body

Herbivorous animals and insects prefer to graze on young,growing stems and leaves rather than on fully grown structures.These tender young plants are non-lignified and flexible,as opposed to the mature structures which have been strengthened by _______tissue.

Correct Answer
verified

In addition to permitting gas exchange,stomata allow water to evaporate from plant cells.This suggests that a plant,in order to maximize photosynthesis without dehydrating,would typically keep its stomata

Correct Answer
verified

The original purpose of artificial selection in domesticated crop plants was to

Correct Answer
verified

The repeating unit from which the shoots of flowering plants are constructed is the _______.

Correct Answer
verified

A plant that produces protoderm,ground meristem,and procambium,but does not produce lateral meristems,undergoes

Correct Answer
verified

A student views a cross section of a plant stem under a microscope.She decides that the plant must be a monocot,rather than a eudicot,because its vascular tissue

Correct Answer
verified

The veins of a leaf consist of

Correct Answer
verified

Correct Answer
verified

Because plants are unable to move,they must be able to perform a number of functions.Which is not one of those functions?

Correct Answer
verified

Correct Answer
verified

Exam 24: The Plant Body

Herbivorous animals and insects prefer to graze on young,growing stems and leaves rather than on fully grown structures.These tender young plants are non-lignified and flexible,as opposed to the mature structures which have been strengthened by _______tissue.

Correct AnswerverifiedShow Answer

In addition to permitting gas exchange,stomata allow water to evaporate from plant cells.This suggests that a plant,in order to maximize photosynthesis without dehydrating,would typically keep its stomata

Correct AnswerverifiedShow Answer

The original purpose of artificial selection in domesticated crop plants was to

Correct AnswerverifiedShow Answer

The repeating unit from which the shoots of flowering plants are constructed is the _______.

Correct AnswerverifiedShow Answer

A plant that produces protoderm,ground meristem,and procambium,but does not produce lateral meristems,undergoes

Correct AnswerverifiedShow Answer

A student views a cross section of a plant stem under a microscope.She decides that the plant must be a monocot,rather than a eudicot,because its vascular tissue

Correct AnswerverifiedShow Answer

The veins of a leaf consist of

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Because plants are unable to move,they must be able to perform a number of functions.Which is not one of those functions?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
verified