Question 1

What tissue conducts water through a plant?

Accepted Answer

A)  phloem 
B)  xylem 
C)  meristematic tissue 
D)  epidermal tissue 
A)  phloem 
B)  xylem 
C)  meristematic tissue 
D)  epidermal tissue

Question 2

Why do plants containing nitrogen-fixing bacteria in their roots need less nitrogen-based fertilizer than others?

Accepted Answer

A)  The plants break down the bacteria as a source of nitrogen-rich nutrients. 
B)  The bacteria convert nitrogen in the air into a form that can be taken up by the plants. 
C)  The plants and bacteria work together to attract birds, which deposit nitrogen-rich droppings near the plant. 
D)  The bacteria kill and digest earthworms and other animals in the soil, providing excess nitrogen to the plants. 
A)  The plants break down the bacteria as a source of nitrogen-rich nutrients. 
B)  The bacteria convert nitrogen in the air into a form that can be taken up by the plants. 
C)  The plants and bacteria work together to attract birds, which deposit nitrogen-rich droppings near the plant. 
D)  The bacteria kill and digest earthworms and other animals in the soil, providing excess nitrogen to the plants.

Question 3

If a nail is pounded into the trunk of a tree, what plant structure would it encounter first?

Accepted Answer

A)  phloem 
B)  xylem 
C)  cork 
D)  cork cambium 
A)  phloem 
B)  xylem 
C)  cork 
D)  cork cambium

Question 4

Plants grow taller from their growing tips, or ________. This form of growth is also known as ________ growth.

Accepted Answer

A)  apical meristems; primary 
B)  apical meristems; secondary 
C)  axillary buds; primary 
D)  axillary buds; secondary 
A)  apical meristems; primary 
B)  apical meristems; secondary 
C)  axillary buds; primary 
D)  axillary buds; secondary

Question 5

-As shown here, what is a bean/bean pod actually?

Accepted Answer

A)  stem 
B)  fruit 
C)  axillary bud 
D)  petiole 
A)  stem 
B)  fruit 
C)  axillary bud 
D)  petiole

Question 6

What is the loss of fertilizer and pesticides from soil by water moving through it?

Accepted Answer

A)  the pesticide treadmill 
B)  biomagnification 
C)  soil erosion 
D)  runoff 
A)  the pesticide treadmill 
B)  biomagnification 
C)  soil erosion 
D)  runoff

Question 7

What type of growth does a plant exhibit when its trunk gets thicker?

Accepted Answer

A)  primary 
B)  secondary 
C)  tertiary 
D)  determinate 
A)  primary 
B)  secondary 
C)  tertiary 
D)  determinate

Question 8

How are plants that grow from a seed and produce new seeds within the course of one year classified?

Accepted Answer

A)  monocots 
B)  dicots 
C)  annuals 
D)  perennials 
A)  monocots 
B)  dicots 
C)  annuals 
D)  perennials

Question 9

What are the embryonic leaves emerging from the seed of a plant?

Accepted Answer

A)  monocots 
B)  dicots 
C)  cotyledons 
D)  anthers 
A)  monocots 
B)  dicots 
C)  cotyledons 
D)  anthers

Question 10

What is the emergence of a plant embryo from a seed?

Accepted Answer

The answer of What is the emergence of a plant...

Question 11

From what food source do most of the calories in a typical American diet come?

Accepted Answer

A)  meat 
B)  cereal grains 
C)  legumes 
D)  plant leaves 
A)  meat 
B)  cereal grains 
C)  legumes 
D)  plant leaves

Question 12

What evidence was used by scientists to deduce the climate conditions that existed thousands of years ago?

Accepted Answer

A)  plant remains trapped in sediments 
B)  fossilized fruits and seeds 
C)  DNA in crop plants 
D)  deep layers in soils 
A)  plant remains trapped in sediments 
B)  fossilized fruits and seeds 
C)  DNA in crop plants 
D)  deep layers in soils

Question 13

What are staple crops?

Accepted Answer

A)  the major agricultural sources of calories in a society 
B)  the plants in which the gametophyte stage is dominant 
C)  the manioc plants eaten by people in Europe 
D)  the vegetative organs of grasses 
A)  the major agricultural sources of calories in a society 
B)  the plants in which the gametophyte stage is dominant 
C)  the manioc plants eaten by people in Europe 
D)  the vegetative organs of grasses

Question 14

The number of embryonic leaves, or ________, differentiates the two main classes of crop plants.

Accepted Answer

A)  cotyledons 
B)  anthers 
C)  carpels 
D)  rhizomes 
A)  cotyledons 
B)  anthers 
C)  carpels 
D)  rhizomes

Question 15

What plant group includes almost all agricultural plants?

Accepted Answer

A)  angiosperms 
B)  gymnosperms 
C)  legumes 
D)  dicots 
A)  angiosperms 
B)  gymnosperms 
C)  legumes 
D)  dicots

Question 16

What evidence exists that suggests modern agriculture is unsustainable?

Accepted Answer

A)  Fresh water is used for irrigating crops. 
B)  Large amounts of nonrenewable fossil fuels are required. 
C)  Fertilizers and pesticides are inexpensive and easy to obtain. 
D)  More food is produced than can be used. 
A)  Fresh water is used for irrigating crops. 
B)  Large amounts of nonrenewable fossil fuels are required. 
C)  Fertilizers and pesticides are inexpensive and easy to obtain. 
D)  More food is produced than can be used.

Question 17

What is a leaf blade attached to a stem by a stalk-like structure?

Accepted Answer

A)  internode 
B)  stoma 
C)  petiole 
D)  node 
A)  internode 
B)  stoma 
C)  petiole 
D)  node

Question 18

Which tissue is part of the wood of a tree, not the bark?

Accepted Answer

A)  cork 
B)  cork cambium 
C)  xylem 
D)  phloem 
A)  cork 
B)  cork cambium 
C)  xylem 
D)  phloem

Question 19

What type of roots do monocot plants often exhibit?

Accepted Answer

A)  no roots at all 
B)  one large taproot 
C)  fibrous, broadly spread roots 
D)  roots that extend deep into the ground 
A)  no roots at all 
B)  one large taproot 
C)  fibrous, broadly spread roots 
D)  roots that extend deep into the ground

Question 20

What plant group includes almost all modern crop plants?

Accepted Answer

A)  gymnosperms 
B)  annual plants 
C)  dicots 
D)  legumes 
A)  gymnosperms 
B)  annual plants 
C)  dicots 
D)  legumes

Exam 24: Feeding the World: Plant Structure and Growth

What tissue conducts water through a plant?

Why do plants containing nitrogen-fixing bacteria in their roots need less nitrogen-based fertilizer than others?

If a nail is pounded into the trunk of a tree, what plant structure would it encounter first?

Plants grow taller from their growing tips, or ________. This form of growth is also known as ________ growth.

-As shown here, what is a bean/bean pod actually?

What is the loss of fertilizer and pesticides from soil by water moving through it?

What type of growth does a plant exhibit when its trunk gets thicker?

How are plants that grow from a seed and produce new seeds within the course of one year classified?

What are the embryonic leaves emerging from the seed of a plant?

What is the emergence of a plant embryo from a seed?

From what food source do most of the calories in a typical American diet come?

What evidence was used by scientists to deduce the climate conditions that existed thousands of years ago?

What are staple crops?

The number of embryonic leaves, or ________, differentiates the two main classes of crop plants.

What plant group includes almost all agricultural plants?

What evidence exists that suggests modern agriculture is unsustainable?

What is a leaf blade attached to a stem by a stalk-like structure?

Which tissue is part of the wood of a tree, not the bark?

What type of roots do monocot plants often exhibit?

What plant group includes almost all modern crop plants?

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Plants grow taller from their growing tips, or . This form of growth is also known as growth.