SS2 third Term biology Past Questions and Answers

SS2 third Term biology Past Questions and Answers

Here they are;

Question: What is the primary function of the nucleus in a cell?

A) Energy production

B) Protein synthesis

C) Cell division

D) Waste elimination

Answer: B) Protein synthesis

Question: Which organelle is responsible for cellular respiration?

A) Nucleus

B) Mitochondrion

C) Endoplasmic reticulum

D) Golgi apparatus

Answer: B) Mitochondrion

Question: What is the main function of the chloroplast in plant cells?

A) Photosynthesis

B) Cellular respiration

C) Lipid synthesis

D) Protein synthesis

Answer: A) Photosynthesis

Question: Which of the following is a function of the ribosomes?

A) DNA storage

B) Lipid synthesis

C) Protein synthesis

D) Waste elimination

Answer: C) Protein synthesis

Question: What is the basic structural unit of life?

A) Atom

B) Molecule

C) Cell

D) Tissue

Answer: C) Cell

Question: In which part of the cell does glycolysis occur?

A) Nucleus

B) Mitochondrion

C) Cytoplasm

D) Endoplasmic reticulum

Answer: C) Cytoplasm

Question: What is the function of the cell membrane?

A) Regulates passage of substances into and out of the cell

B) Synthesizes proteins

C) Stores genetic information

D) Produces energy

Answer: A) Regulates passage of substances into and out of the cell

Question: Which gas is primarily involved in photosynthesis?

A) Oxygen

B) Nitrogen

C) Carbon dioxide

D) Hydrogen

Answer: C) Carbon dioxide

Question: What is the purpose of mitosis?

A) Sexual reproduction

B) Growth and repair

C) Genetic recombination

D) Production of gametes

Answer: B) Growth and repair

Question: Which of the following is a function of the vacuole in plant cells?

A) Storage of water and nutrients

B) Synthesis of proteins

C) ATP production

D) Cellular respiration

Answer: A) Storage of water and nutrients

Question: What is the role of DNA in the cell?

A) Energy production

B) Storage of genetic information

C) Synthesis of proteins

D) Regulation of cell shape

Answer: B) Storage of genetic information

Question: Which structure is responsible for the production of ribosomal RNA (rRNA)?

A) Nucleus

B) Endoplasmic reticulum

C) Golgi apparatus

D) Nucleolus

Answer: D) Nucleolus

Question: What is the main function of the endoplasmic reticulum?

A) Synthesis of lipids

B) Synthesis of proteins

C) Storage of genetic information

D) ATP production

Answer: B) Synthesis of proteins

Question: In cellular respiration, which stage produces the most ATP?

A) Glycolysis

B) Krebs cycle

C) Electron transport chain

D) Fermentation

Answer: C) Electron transport chain

Question: Which of the following is a characteristic of prokaryotic cells?

A) Presence of a nucleus

B) Membrane-bound organelles

C) Single-celled organisms

D) Complex internal structure

Answer: C) Single-celled organisms

Question: What is the primary function of the Golgi apparatus?

A) Energy production

B) Protein modification and packaging

C) DNA replication

D) Waste elimination

Answer: B) Protein modification and packaging

Question: Which process involves the exchange of gases between an organism and its environment?

A) Osmosis

B) Respiration

C) Digestion

D) Excretion

Answer: B) Respiration

Question: What is the function of cilia and flagella in cells?

A) Movement

B) Protein synthesis

C) ATP production

D) Waste elimination

Answer: A) Movement

Question: Which macromolecule is the main component of cell membranes?

A) Proteins

B) Nucleic acids

C) Lipids

D) Carbohydrates

Answer: C) Lipids

Question: What is the name of the process by which cells replicate their DNA?

A) Mitosis

B) Meiosis

C) Replication

D) Transcription

Answer: C) Replication