Question 1

Nitrate reductase is an enzyme that changes nitrogen gas into nitrate.

Accepted Answer

A) True 
 B)False

Question 2

Certain fungi help make available minerals such as nitrogen.

Accepted Answer

A) True 
 B)False

Question 3

Most plant dry mass originates from:

Accepted Answer

A)   oxygen
B)   chlorophyll
C)   carbon dioxide
D)   water
E)   soil mineralsF) None of the above
G) A) and B)

Question 4

The main forms of nitrogen taken up by plant roots and useful to plants is:

Accepted Answer

A)   N-N
B)   nitrite
C)   nitrite and nitrate
D)   ammonia and N-N
E)   nitrate and ammoniaF) All of the above
G) D) and E)

Question 5

One reason organic farming is used is because in contrast to other farming methods certain inorganic fertilizers may be easily:

Accepted Answer

A)   leached from soils
B)   bound by soil particles
C)   not useful as minerals at all
D)   lack the essential minerals needed for plant growth
E)   too high acid contentF) A) and E)
G) B) and D)

Question 6

Xanthophyll is a pigment found in plants that helps protect the photosynthetic protein D 1 from:

Accepted Answer

A)   water reactions
B)   chlorophyll
C)   damage by high temperatures
D)   damage by excess light energy
E)   membranesF) A) and D)
G) A) and E)

Question 7

When stomata are closed plants CANNOT absorb CO2, therefore photosynthesis is limited.

Accepted Answer

A) True 
 B)False

Question 8

Plants that are called C4 plants are better able to utilize ________ than C3 plants.

Accepted Answer

A)   oxygen
B)   minerals
C)   water
D)   carbon dioxide
E)   chlorophyllF) D) and E)
G) C) and E)

Question 9

Fertilizers are essentially made up of:

Accepted Answer

A)   mostly organic matter
B)   different types of soil
C)   deficiency amendments
D)   minerals
E)   plant foodsF) None of the above
G) C) and E)

Question 10

Plants are unable to use nitrogen gas directly.

Accepted Answer

A) True 
 B)False

Question 11

Aluminum is not an essential mineral for plants and therefore may cause toxicity.

Accepted Answer

A) True 
 B)False

Question 12

An example of a mineral known as a micronutrient that may be toxic to plants is:

Accepted Answer

A)   aluminum
B)   cadmium
C)   chromium
D)   lead
E)   all of the choicesF) A) and B)
G) All of the above

Question 13

Since ________ binds CO2 more readily than does rubisco, scientists would want to incorporate this compound into agricultural plants.

Accepted Answer

A)   chlorophyll
B)   a four-carbon organic acid
C)   phosphoenolpyruvate carboxylase
D)   cam photosynthesis
E)   oxygenF) A) and D)
G) All of the above

Question 14

One method plants use to obtain phosphorus when it is in limited supply is:

Accepted Answer

A)   by roots adhering to soil particles
B)   by roots growing deeper in the ground
C)   by roots associating with certain fungi
D)   by roots using passive uptake methods
E)   by roots binding the phosphorusF) A) and B)
G) A) and C)

Question 15

Soil nutrients that are leached from soils into ponds or other bodies of water can contribute to such phenomena as:

Accepted Answer

A)   overproduction of water plants that could block waterways
B)   excess growth of certain algae
C)   loss of those nutrients for plant growth
D)   reduced fertility of the soils
E)   All of these could be trueF) A) and B)
G) B) and E)

Question 16

One of the reasons study of nitrogen use in plants is of special interest is because:

Accepted Answer

A)   Nitrogen is limited in our atmosphere.
B)   Nitrogen in its atmospheric form is not useable by plants.
C)   Nitrogen is often toxic to plants.
D)   None of the forms of nitrogen are easily absorbed by plants.
E)   Nitrogen is not an essential element for plant growth.F) None of the above
G) C) and D)

Question 17

Inexpensive sources of phosphorus fertilizers are nearly exhausted.

Accepted Answer

A) True 
 B)False

Question 18

One reason certain plants grow well as houseplants is because they may be adapted to:

Accepted Answer

A)   dry growing conditions
B)   areas that normally lack direct sunlight
C)   areas that get very little mineral content in the soils
D)   growing short branches
E)   lack of temperature changesF) A) and E)
G) B) and E)

Exam 37: Flowering Plants: Nutrition

When stomata are closed plants CANNOT absorb CO₂, therefore photosynthesis is limited.

Correct Answer
verified

An example of a mineral known as a micronutrient that may be toxic to plants is:

Correct Answer
verified

Certain fungi help make available minerals such as nitrogen.

Correct Answer
verified

Plants are unable to use nitrogen gas directly.

Correct Answer
verified

One reason organic farming is used is because in contrast to other farming methods certain inorganic fertilizers may be easily:

Correct Answer
verified

One of the reasons study of nitrogen use in plants is of special interest is because:

Correct Answer
verified

The main forms of nitrogen taken up by plant roots and useful to plants is:

Correct Answer
verified

Most plant dry mass originates from:

Correct Answer
verified

Plants that are called C4 plants are better able to utilize ________ than C3 plants.

Correct Answer
verified

Xanthophyll is a pigment found in plants that helps protect the photosynthetic protein D 1 from:

Correct Answer
verified

Aluminum is not an essential mineral for plants and therefore may cause toxicity.

Correct Answer
verified

Fertilizers are essentially made up of:

Correct Answer
verified

Soil nutrients that are leached from soils into ponds or other bodies of water can contribute to such phenomena as:

Correct Answer
verified

One method plants use to obtain phosphorus when it is in limited supply is:

Correct Answer
verified

Since ________ binds CO₂ more readily than does rubisco, scientists would want to incorporate this compound into agricultural plants.

Correct Answer
verified

Nitrate reductase is an enzyme that changes nitrogen gas into nitrate.

Correct Answer
verified

Inexpensive sources of phosphorus fertilizers are nearly exhausted.

Correct Answer
verified

One reason certain plants grow well as houseplants is because they may be adapted to:

Correct Answer
verified

Exam 37: Flowering Plants: Nutrition

When stomata are closed plants CANNOT absorb CO2, therefore photosynthesis is limited.

Correct AnswerverifiedShow Answer

An example of a mineral known as a micronutrient that may be toxic to plants is:

Correct AnswerverifiedShow Answer

Certain fungi help make available minerals such as nitrogen.

Correct AnswerverifiedShow Answer

Plants are unable to use nitrogen gas directly.

Correct AnswerverifiedShow Answer

One reason organic farming is used is because in contrast to other farming methods certain inorganic fertilizers may be easily:

Correct AnswerverifiedShow Answer

One of the reasons study of nitrogen use in plants is of special interest is because:

Correct AnswerverifiedShow Answer

The main forms of nitrogen taken up by plant roots and useful to plants is:

Correct AnswerverifiedShow Answer

Most plant dry mass originates from:

Correct AnswerverifiedShow Answer

Plants that are called C4 plants are better able to utilize ________ than C3 plants.

Correct AnswerverifiedShow Answer

Xanthophyll is a pigment found in plants that helps protect the photosynthetic protein D 1 from:

Correct AnswerverifiedShow Answer

Aluminum is not an essential mineral for plants and therefore may cause toxicity.

Correct AnswerverifiedShow Answer

Fertilizers are essentially made up of:

Correct AnswerverifiedShow Answer

Soil nutrients that are leached from soils into ponds or other bodies of water can contribute to such phenomena as:

Correct AnswerverifiedShow Answer

One method plants use to obtain phosphorus when it is in limited supply is:

Correct AnswerverifiedShow Answer

Since ________ binds CO2 more readily than does rubisco, scientists would want to incorporate this compound into agricultural plants.

Correct AnswerverifiedShow Answer

Nitrate reductase is an enzyme that changes nitrogen gas into nitrate.

Correct AnswerverifiedShow Answer

Inexpensive sources of phosphorus fertilizers are nearly exhausted.

Correct AnswerverifiedShow Answer

One reason certain plants grow well as houseplants is because they may be adapted to:

Correct AnswerverifiedShow Answer

When stomata are closed plants CANNOT absorb CO₂, therefore photosynthesis is limited.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Since ________ binds CO₂ more readily than does rubisco, scientists would want to incorporate this compound into agricultural plants.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified