AEPA Biology Examination Questions
and Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A | Instant
Download Pdf
1. The basic unit of life is the
A. Atom
B. Tissue
C. Organ
D. Cell
Correct Answer: D. Cell
Rationale: Cells are the smallest structures capable of performing all essential
functions of life.
2. Which organelle contains DNA in eukaryotic cells?
A. Ribosome
B. Mitochondrion
C. Golgi apparatus
D. Nucleus
Correct Answer: D. Nucleus
Rationale: The nucleus stores the cell’s genetic material in the form of
chromosomes.
3. Which organelle produces ATP during cellular respiration?
,A. Chloroplast
B. Ribosome
C. Mitochondrion
D. Lysosome
Correct Answer: C. Mitochondrion
Rationale: Mitochondria convert energy from food molecules into ATP.
4. Ribosomes are responsible for
A. DNA storage
B. Lipid digestion
C. Energy production
D. Protein synthesis
Correct Answer: D. Protein synthesis
Rationale: Ribosomes assemble amino acids into proteins using genetic
instructions.
5. The cell membrane is mainly composed of
A. Cellulose
B. Nucleic acids
C. Phospholipids
D. Starch
Correct Answer: C. Phospholipids
Rationale: The phospholipid bilayer forms the basic structure of the plasma
membrane.
6. The function of the cell membrane is to
A. Produce proteins
B. Store DNA
,C. Produce ATP
D. Control movement of substances
Correct Answer: D. Control movement of substances
Rationale: The cell membrane regulates what enters and leaves the cell.
7. Prokaryotic cells do not contain a
A. Ribosome
B. Cell membrane
C. Cytoplasm
D. Nucleus
Correct Answer: D. Nucleus
Rationale: Prokaryotes lack membrane-bound organelles, including a nucleus.
8. The molecule that carries hereditary information is
A. ATP
B. Protein
C. Lipid
D. DNA
Correct Answer: D. DNA
Rationale: DNA contains the instructions needed for inheritance and cell function.
9. DNA is copied during
A. Translation
B. Transcription
C. Cytokinesis
D. Replication
Correct Answer: D. Replication
, Rationale: DNA replication creates an identical copy of DNA before cell division.
10. Mitosis produces
A. Four different cells
B. Two haploid cells
C. Gametes
D. Two identical daughter cells
Correct Answer: D. Two identical daughter cells
Rationale: Mitosis produces genetically identical cells used for growth and repair.
11. Meiosis produces
A. Body cells
B. Identical cells
C. Sex cells
D. Skin cells
Correct Answer: C. Sex cells
Rationale: Meiosis produces haploid gametes such as sperm and eggs.
12. Chromosomes are composed mainly of
A. Lipids
B. Carbohydrates
C. ATP
D. DNA and proteins
Correct Answer: D. DNA and proteins
Rationale: Chromosomes consist of DNA wrapped around proteins called histones.
13. A gene is a section of
and Correct Answers (Verified Answers)
Plus Rationales 2026 Q&A | Instant
Download Pdf
1. The basic unit of life is the
A. Atom
B. Tissue
C. Organ
D. Cell
Correct Answer: D. Cell
Rationale: Cells are the smallest structures capable of performing all essential
functions of life.
2. Which organelle contains DNA in eukaryotic cells?
A. Ribosome
B. Mitochondrion
C. Golgi apparatus
D. Nucleus
Correct Answer: D. Nucleus
Rationale: The nucleus stores the cell’s genetic material in the form of
chromosomes.
3. Which organelle produces ATP during cellular respiration?
,A. Chloroplast
B. Ribosome
C. Mitochondrion
D. Lysosome
Correct Answer: C. Mitochondrion
Rationale: Mitochondria convert energy from food molecules into ATP.
4. Ribosomes are responsible for
A. DNA storage
B. Lipid digestion
C. Energy production
D. Protein synthesis
Correct Answer: D. Protein synthesis
Rationale: Ribosomes assemble amino acids into proteins using genetic
instructions.
5. The cell membrane is mainly composed of
A. Cellulose
B. Nucleic acids
C. Phospholipids
D. Starch
Correct Answer: C. Phospholipids
Rationale: The phospholipid bilayer forms the basic structure of the plasma
membrane.
6. The function of the cell membrane is to
A. Produce proteins
B. Store DNA
,C. Produce ATP
D. Control movement of substances
Correct Answer: D. Control movement of substances
Rationale: The cell membrane regulates what enters and leaves the cell.
7. Prokaryotic cells do not contain a
A. Ribosome
B. Cell membrane
C. Cytoplasm
D. Nucleus
Correct Answer: D. Nucleus
Rationale: Prokaryotes lack membrane-bound organelles, including a nucleus.
8. The molecule that carries hereditary information is
A. ATP
B. Protein
C. Lipid
D. DNA
Correct Answer: D. DNA
Rationale: DNA contains the instructions needed for inheritance and cell function.
9. DNA is copied during
A. Translation
B. Transcription
C. Cytokinesis
D. Replication
Correct Answer: D. Replication
, Rationale: DNA replication creates an identical copy of DNA before cell division.
10. Mitosis produces
A. Four different cells
B. Two haploid cells
C. Gametes
D. Two identical daughter cells
Correct Answer: D. Two identical daughter cells
Rationale: Mitosis produces genetically identical cells used for growth and repair.
11. Meiosis produces
A. Body cells
B. Identical cells
C. Sex cells
D. Skin cells
Correct Answer: C. Sex cells
Rationale: Meiosis produces haploid gametes such as sperm and eggs.
12. Chromosomes are composed mainly of
A. Lipids
B. Carbohydrates
C. ATP
D. DNA and proteins
Correct Answer: D. DNA and proteins
Rationale: Chromosomes consist of DNA wrapped around proteins called histones.
13. A gene is a section of
