Biology questions and answers for university Year I

BIOLOGY QUESTIONS AND
ANSWERS

1. What is the powerhouse of the cell?
A) Nucleus
B) Ribosome
C) Mitochondrion
D) Golgi apparatus
Answer: C) Mitochondrion


2. Which macromolecule stores genetic information?
A) Proteins
B) Lipids
C) Carbohydrates
D) Nucleic acids
Answer: D) Nucleic acids


3. Which process produces the most ATP?
A) Glycolysis
B) Krebs cycle
C) Electron transport chain
D) Fermentation
Answer: C) Electron transport chain


4. What type of bond holds the two DNA strands together?
A) Ionic bonds
B) Hydrogen bonds
C) Covalent bonds
D) Peptide bonds
Answer: B) Hydrogen bonds


5. Which cells fight infections?
A) Red blood cells
B) White blood cells
C) Platelets
D) Plasma

, Answer: B) White blood cells


6. What organelle is responsible for protein synthesis?
A) Ribosome
B) Lysosome
C) Mitochondrion
D) Vacuole
Answer: A) Ribosome


7. Which of these is a prokaryotic organism?
A) Amoeba
B) Bacterium
C) Yeast
D) Algae
Answer: B) Bacterium


8. Which stage of mitosis comes first?
A) Anaphase
B) Metaphase
C) Telophase
D) Prophase
Answer: D) Prophase


9. Where does photosynthesis occur?
A) Mitochondria
B) Chloroplast
C) Ribosome
D) Golgi body
Answer: B) Chloroplast


10. Which molecule is most directly responsible for enzyme activity?
A) DNA
B) Protein
C) Lipid
D) RNA
Answer: B) Protein


11. What is the basic unit of life?