Biology NABTEB exam past questions and answers

Biology NABTEB exam past questions and answers

Here they are;

Question: What is the powerhouse of the cell?

a) Nucleus

b) Mitochondria

c) Endoplasmic reticulum

d) Golgi apparatus

Answer: b) Mitochondria

Question: Which organelle is responsible for protein synthesis?

a) Nucleus

b) Ribosome

c) Lysosome

d) Vacuole

Answer: b) Ribosome

Question: What is the function of red blood cells?

a) Transport oxygen

b) Fight infections

c) Produce antibodies

d) Store nutrients

Answer: a) Transport oxygen

Question: What is the role of chlorophyll in plant cells?

a) Storage of nutrients

b) Photosynthesis

c) Cell division

d) Cellular respiration

Answer: b) Photosynthesis

Question: In genetics, what does DNA stand for?

a) Deoxyribonucleic acid

b) Ribonucleic acid

c) Dispersed nucleic acid

d) Deoxyribose nitrogenous acid

Answer: a) Deoxyribonucleic acid

Question: Which gas is essential for photosynthesis?

a) Oxygen

b) Carbon dioxide

c) Nitrogen

d) Hydrogen

Answer: b) Carbon dioxide

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

a) Circulation

b) Digestion

c) Coordination and communication

d) Respiration

Answer: c) Coordination and communication

Question: What is the smallest unit of life?

a) Cell

b) Molecule

c) Atom

d) Organ

Answer: a) Cell

Question: Which process allows cells to divide and multiply?

a) Meiosis

b) Mitosis

c) Binary fission

d) Budding

Answer: b) Mitosis

Question: What is the function of the respiratory system?

a) Pump blood

b) Exchange gases

c) Digest food

d) Filter toxins

Answer: b) Exchange gases

Question: What is the purpose of enzymes in biological reactions?

a) Store energy

b) Speed up chemical reactions

c) Regulate temperature

d) Produce hormones

Answer: b) Speed up chemical reactions

Question: What is the Hardy-Weinberg equilibrium used to study?

a) Population genetics

b) Ecosystem dynamics

c) Cellular respiration

d) DNA replication

Answer: a) Population genetics

Question: Which type of tissue connects muscles to bones?

a) Adipose tissue

b) Connective tissue

c) Epithelial tissue

d) Nervous tissue

Answer: b) Connective tissue

Question: What is the function of the pancreas in the digestive system?

a) Produce insulin

b) Filter blood

c) Absorb nutrients

d) Store bile

Answer: a) Produce insulin

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

a) Transport oxygen

b) Fight infections

c) Clot blood

d) Pump blood

Answer: b) Fight infections

Question: Which of the following is a renewable energy source used by cells?

a) ATP

b) Glucose

c) Fatty acids

d) DNA

Answer: a) ATP

Question: In ecological terms, what is a symbiotic relationship?

a) Competition between species

b) Mutual dependence between species

c) Predator-prey interaction

d) Random association of species

Answer: b) Mutual dependence between species

Question: What is the role of the endocrine system?

a) Produce hormones

b) Digest food

c) Exchange gases

d) Filter toxins

Answer: a) Produce hormones

Question: Which gas is a byproduct of cellular respiration?

a) Oxygen

b) Carbon dioxide

c) Nitrogen

d) Hydrogen

Answer: b) Carbon dioxide

Question: What is the function of the Golgi apparatus?

a) Protein synthesis

b) Energy production

c) Cellular respiration

d) Modifying and packaging proteins

Answer: d) Modifying and packaging proteins