AP BIOLOGY PRACTICE EXAMINATION 3
COMPREHENSIVE ASSESSMENT OF CORE
BIOLOGICAL CONCEPTS
SPRING EXAMINATION MAY 2026
Time Allowed 3HRS
SECTION I — MULTIPLE CHOICE QUESTIONS
Choose the best answer for each question.
1.
Which organelle contains hydrolytic enzymes used for intracellular digestion?
A. Nucleus
B. Lysosome
C. Ribosome
D. Chloroplast
2.
What is the primary source of energy for most ecosystems?
1|Page
, A. Water
B. Soil minerals
C. Sunlight
D. Oxygen
3.
Which process occurs in the ribosome?
A. DNA replication
B. Protein synthesis
C. Lipid digestion
D. Photosynthesis
4.
Which molecule stores and transmits hereditary information?
A. ATP
B. Protein
C. DNA
D. Glucose
5.
What is the function of stomata in plants?
A. Water absorption
B. Gas exchange
2|Page
COMPREHENSIVE ASSESSMENT OF CORE
BIOLOGICAL CONCEPTS
SPRING EXAMINATION MAY 2026
Time Allowed 3HRS
SECTION I — MULTIPLE CHOICE QUESTIONS
Choose the best answer for each question.
1.
Which organelle contains hydrolytic enzymes used for intracellular digestion?
A. Nucleus
B. Lysosome
C. Ribosome
D. Chloroplast
2.
What is the primary source of energy for most ecosystems?
1|Page
, A. Water
B. Soil minerals
C. Sunlight
D. Oxygen
3.
Which process occurs in the ribosome?
A. DNA replication
B. Protein synthesis
C. Lipid digestion
D. Photosynthesis
4.
Which molecule stores and transmits hereditary information?
A. ATP
B. Protein
C. DNA
D. Glucose
5.
What is the function of stomata in plants?
A. Water absorption
B. Gas exchange
2|Page
