AP Biology 8.2.B: Energy Flow and Matter Cycles
Practise AP Biology 8.2.B questions by tracing energy through trophic levels and matter through water, carbon, nitrogen and phosphorus cycles.
- Syllabus
- Effective Fall 2025
- Course
- AP Biology
Exam points
- trace energy flow through food webs and trophic levels and calculate transfer between levels
- trace reservoirs and processes in the water, carbon, nitrogen and phosphorus cycles
- predict how decomposers, human activities or environmental changes alter matter cycling and ecosystem conditions
8.2.B—Explain how energy flows and matter cycles through trophic levels question 1
[Maximum number: 1]
Which of the following best describes the process by which gas from the atmosphere is obtained by plants and used to build lipids?
A
Gas is fixed by plants as part of the sulfur cycle.
B
Gas is fixed by plants as part of the nitrogen cycle.
C
Gas is directly obtained by plants as part of the carbon cycle.
D
Gas is directly obtained by plants as part of the magnesium cycle.
C
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