19
QuizMultiple Choice

Ecosystem Interactions and Energy — Test

Question 19 • 26-27 - C - RUSD Biology in the Living Earth

Which molecule would be the most affected by limited nitrogen?

Answer
A
fat molecules surrounding organs
B
cellulose molecules in plant cell walls
C
myofibrillar proteins in muscle
D
glucose molecules in starch

Explanation

Nitrogen is a key element in amino acids, the building blocks of proteins. Myofibrils are made largely of proteins, so limited nitrogen would most directly affect their formation. Fats, cellulose, and glucose-based starch do not contain nitrogen as essential structural components.

AI-written and checked against the verified answer.

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