SS2 First Term Biology Past Questions And Answers
Question: What is the primary function of the nucleus in a cell?
a) Energy production
b) Protein synthesis
c) Cell structure
d) Waste elimination
Answer: b) Protein synthesis
Question: Which organelle is responsible for breaking down cellular waste and debris?
a) Nucleus
b) Golgi apparatus
c) Lysosome
d) Endoplasmic reticulum
Answer: c) Lysosome
Question: What is the process by which cells replicate and divide?
a) Meiosis
b) Mitosis
c) Photosynthesis
d) Respiration
Answer: b) Mitosis
Question: Which part of the plant cell is responsible for photosynthesis?
a) Chloroplast
b) Vacuole
c) Ribosome
d) Cell membrane
Answer: a) Chloroplast
Question: What is the role of DNA in the cell?
a) Energy storage
b) Genetic information storage
c) Cell movement
d) Waste elimination
Answer: b) Genetic information storage
Question: What is the function of the respiratory system in humans?
a) Pumping blood
b) Breathing and gas exchange
c) Digesting food
d) Producing hormones
Answer: b) Breathing and gas exchange
Question: Which type of blood vessels carries oxygenated blood away from the heart?
a) Veins
b) Arteries
c) Capillaries
d) Lymph vessels
Answer: b) Arteries
Question: What is the purpose of the circulatory system?
a) Breaking down nutrients
b) Providing structural support
c) Transporting nutrients and oxygen
d) Regulating body temperature
Answer: c) Transporting nutrients and oxygen
Question: In which part of the digestive system does nutrient absorption primarily occur?
a) Stomach
b) Small intestine
c) Large intestine
d) Esophagus
Answer: b) Small intestine
Question: What is the role of the nervous system?
a) Regulating hormones
b) Controlling movement and transmitting signals
c) Digesting food
d) Maintaining blood pressure
Answer: b) Controlling movement and transmitting signals
Question: Which substance is primarily responsible for muscle contraction?
a) Insulin
b) Hemoglobin
c) Adenosine triphosphate (ATP)
d) Enzymes
Answer: c) Adenosine triphosphate (ATP)
Question: What is the function of the endocrine system?
a) Producing antibodies
b) Regulating body temperature
c) Producing and secreting hormones
d) Facilitating digestion
Answer: c) Producing and secreting hormones
Question: What is the smallest unit of a chemical element?
a) Atom
b) Molecule
c) Cell
d) Tissue
Answer: a) Atom
Question: Which gas is essential for photosynthesis in plants?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Hydrogen
Answer: b) Carbon dioxide
Question: What is the function of the excretory system?
a) Maintaining body temperature
b) Eliminating waste products
c) Digesting food
d) Producing hormones
Answer: b) Eliminating waste products
Question: What is the purpose of the skeletal system?
a) Producing blood cells
b) Providing support and protection
c) Digesting food
d) Regulating body temperature
Answer: b) Providing support and protection
Question: Which type of cell division results in the formation of gametes?
a) Mitosis
b) Meiosis
c) Binary fission
d) Budding
Answer: b) Meiosis
Question: What is the role of the immune system?
a) Producing insulin
b) Regulating blood pressure
c) Fighting off infections and diseases
d) Maintaining bone density
Answer: c) Fighting off infections and diseases
Question: Which part of the brain is responsible for regulating basic bodily functions such as breathing and heart rate?
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Hypothalamus
Answer: c) Medulla oblongata
Question: What is the function of red blood cells?
a) Carrying oxygen
b) Digesting food
c) Producing antibodies
d) Transmitting nerve signals
Answer: a) Carrying oxygen.
