Nat 5 Biology Revision - Multicellular Organisms Questions and Answers | Latest Version | 2025/2026 | Correct & Verified

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 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) 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 4 What is the name of the hormone that triggers ovulation? LH (Luteinising Hormone) What type of cell division creates gametes? Meiosis What do we call the union of a sperm and an egg? Fertilisation