SS1 second Term biology Past Questions and Answers

SS1 second Term biology Past Questions and Answers

SS1 biology questions with options and answers:

Question: What is the role of the cell wall in plant cells?

a) Protection and support

b) Energy production

c) Protein synthesis

d) Waste elimination

Answer: a) Protection and support

Question: Which organelle is responsible for detoxifying harmful substances in a cell?

a) Nucleus

b) Peroxisome

c) Chloroplast

d) Vacuole

Answer: b) Peroxisome

Question: In which phase of the cell cycle does DNA replication occur?

a) G1 phase

b) S phase

c) G2 phase

d) M phase

Answer: b) S phase

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

a) Cellular respiration

b) Movement of the cell or substances around the cell

c) Protein synthesis

d) ATP synthesis

Answer: b) Movement of the cell or substances around the cell

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

a) Cellular respiration

b) Synthesis of ATP

c) Storage of genetic material

d) Protein synthesis

Answer: c) Storage of genetic material

Question: Which of the following is an example of a unicellular organism?

a) Human

b) Amoeba

c) Rose plant

d) Earthworm

Answer: b) Amoeba

Question: What is the purpose of the mitotic spindle during cell division?

a) Synthesis of DNA

b) Formation of the cell membrane

c) Separation of chromosomes

d) ATP production

Answer: c) Separation of chromosomes

Question: Which gas is primarily involved in the process of respiration?

a) Oxygen

b) Carbon dioxide

c) Nitrogen

d) Hydrogen

Answer: a) Oxygen

Question: What is the function of the stomata in plant leaves?

a) Photosynthesis

b) Gas exchange

c) Water storage

d) Protein synthesis

Answer: b) Gas exchange

Question: In which part of the flower does fertilization take place?

a) Petal

b) Stamen

c) Ovary

d) Sepal

Answer: c) Ovary

Question: What is the main function of red blood cells?

a) Defense against pathogens

b) Transport of oxygen

c) Protein synthesis

d) Storage of nutrients

Answer: b) Transport of oxygen

Question: Which type of reproduction involves the fusion of gametes?

a) Asexual reproduction

b) Sexual reproduction

c) Binary fission

d) Budding

Answer: b) Sexual reproduction

Question: What is the function of the nephron in the kidney?

a) Synthesis of urine

b) Storage of urine

c) Filtration of blood

d) Digestion of nutrients

Answer: c) Filtration of blood

Question: Which part of the human brain is responsible for coordinating muscle movements and balance?

a) Cerebrum

b) Cerebellum

c) Medulla oblongata

d) Hypothalamus

Answer: b) Cerebellum

Question: What is the function of the alveoli in the respiratory system?

a) Gas exchange

b) Filtration of air

c) Production of mucus

d) Oxygen transport

Answer: a) Gas exchange

Question: Which enzyme is responsible for breaking down carbohydrates in the digestive system?

a) Amylase

b) Lipase

c) Protease

d) Nuclease

Answer: a) Amylase

Question: What is the primary function of the endocrine system?

a) Regulation of body temperature

b) Coordination of body movements

c) Secretion of hormones

d) Filtration of blood

Answer: c) Secretion of hormones

Question: What is the function of the trachea in the respiratory system?

a) Oxygen transport

b) Production of mucus

c) Filtration of air

d) Conducting air to the lungs

Answer: d) Conducting air to the lungs

Question: Which part of the plant is responsible for the majority of photosynthesis?

a) Roots

b) Leaves

c) Stem

d) Flowers

Answer: b) Leaves

Question: What is the role of DNA in protein synthesis?

a) Energy production

b) Formation of ribosomes

c) Storage of genetic information

d) Synthesis of ATP

Answer: c) Storage of genetic information