Course

Biology Science

Study Pack

Set 36 Plant Nutrition

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Question 1

(Multiple Choice)

Free
Which elements are responsible for the greater part of plant wet weight?

A) oxygen, hydrogen, nitrogen
B) carbon, nitrogen, oxygen
C) carbon, oxygen, hydrogen
D) oxygen, hydrogen, phosphorus
E) carbon, nitrogen, phosphorus

Answer

Question 2

(Multiple Choice)

Free
The micronutrient iron is abundant in soil, but often unavailable to plants due to insolubility. Knowing that the reaction FeOH)3 + 3H+ -Fe3+ + 3H2O occurs, and assuming all soil samples have same total amount of iron in them, which type of soil would you predict to have the highest amount of soluble iron?

A) acidic
B) neutral
C) alkaline
D) The amount of iron in soil does not depend on pH.

Answer

Question 3

(Multiple Choice)

Free
A scientist observed a plant where only the young leaves are deteriorating. What nutrient is likely in short supply?

A) nitrogen
B) potassium
C) a mobile nutrient
D) iron
E) phosphorous

Answer