KCSE 2026 Biology Test Bank –
Questions & Answers
1. What is osmosis?
Answer: Movement of water
molecules from a high
concentration to a low
concentration through a semi-
permeable membrane
2. Name one function of the liver.
Answer: Detoxifies chemicals
and produces bile
3. What is the function of red
blood cells?
Answer: Transport oxygen
4. Define transpiration.
Answer: Loss of water vapor
from plant leaves
, 5. Name the process by which
plants make food.
Answer: Photosynthesis
6. State one difference between
plant and animal cells.
Answer: Plant cells have a cell
wall; animal cells do not
7. What is the main function of
roots?
Answer: Absorb water and
mineral salts
8. Name one human body system.
Answer: Circulatory system
9. What is a habitat?
Answer: The natural
environment of an organism
Questions & Answers
1. What is osmosis?
Answer: Movement of water
molecules from a high
concentration to a low
concentration through a semi-
permeable membrane
2. Name one function of the liver.
Answer: Detoxifies chemicals
and produces bile
3. What is the function of red
blood cells?
Answer: Transport oxygen
4. Define transpiration.
Answer: Loss of water vapor
from plant leaves
, 5. Name the process by which
plants make food.
Answer: Photosynthesis
6. State one difference between
plant and animal cells.
Answer: Plant cells have a cell
wall; animal cells do not
7. What is the main function of
roots?
Answer: Absorb water and
mineral salts
8. Name one human body system.
Answer: Circulatory system
9. What is a habitat?
Answer: The natural
environment of an organism
