Section I & II — Comprehensive
Assessment
Advanced Placement Biology Practice Exam
High (AP 4–5 level)
SPRING EXAMINATION MAY 2026
Time: 90 min MCQ + 90 min FRQ
SECTION I — MULTIPLE CHOICE
Choose the best answer.
1.
Which process occurs in the inner mitochondrial membrane?
A. Glycolysis
B. Krebs cycle
C. Electron transport chain
D. Calvin cycle
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, 2.
What is the direct role of oxygen in cellular respiration?
A. Produces glucose
B. Accepts electrons at the end of the chain
C. Breaks down ATP
D. Forms NADH
3.
Which statement about enzymes is correct?
A. They increase activation energy
B. They are consumed in reactions
C. They lower activation energy
D. They permanently change products
4.
Which structure is found in prokaryotes but not eukaryotes?
A. Ribosomes
B. Nucleus
C. Mitochondria
D. Chloroplast
5.
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