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Set 25 Plant Nutrition And Transport

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Question 1

(Multiple Choice)

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Macronutrients

A) are so called because they are more essential than micronutrients.
B) include manganese,boron,and zinc,among others.
C) function as catalysts.
D) are required in concentrations of at least 1 gram per kilogram of plant dry matter.
E) are obtained by the process of photosynthesis.

Answer

Question 2

(Multiple Choice)

Free
Micronutrients are _______ in concentration than macronutrients by a factor of at least _______.

A) higher;100
B) lower;100
C) lower;10
D) higher;50
E) lower;50

Answer

Question 3

(Multiple Choice)

Free
A botanist performs a series of experiments in which different possible sources of hydrogen to be used by plants are radioactively labeled.When photosynthetically derived compounds from the plants are later examined,their hydrogen will be found to have come from which source?

A) The atmosphere
B) Soil minerals
C) Water
D) Other plants
E) Fungi

Answer