1
Nat 5 Biology Revision - Multicellular Organisms Questions and Answers | Latest Version | 2025/2026 | Correct & Verified
What type of cell division is responsible for growth and repair in multicellular organisms?✔✔Mitosis
What part of the brain controls heart rate and breathing?✔✔Medulla
What are the structures that carry electrical impulses in the nervous system?✔✔Neurons
What type of blood vessel has walls that are one cell thick?✔✔Capillary
What is the name of the hormone that controls water concentration in the body?
✔✔ADH 1 / 3
2
What type of reproduction involves only one parent and produces identical offspring?✔✔Asexual reproduction
Which structure in the eye focuses light onto the retina?✔✔Lens
What is the function of insulin in the body?✔✔To lower blood glucose levels
Which organ produces eggs in females?✔✔Ovary
What is the name of the male gamete in animals?✔✔Sperm
Where does fertilisation occur in humans?✔✔Oviduct (fallopian tube) 2 / 3
3
Which organ in plants transports water from the roots to the leaves?✔✔Xylem
Which organ in plants transports sugar produced during photosynthesis?✔✔Phloem
What is the function of guard cells in a leaf?✔✔To open and close stomata
What gas enters the leaf through the stomata for photosynthesis?✔✔Carbon dioxide
Which type of cell is responsible for detecting stimuli in the environment?✔✔Receptor cell
What is the name of the gap between two neurons?✔✔Synapse
- / 3