GCSE Biology Cell Biology Flashcards
6 cards from real GCSE practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 GCSE Biology Cell Biology flashcards as text
Which structure is found in plant cells but NOT in animal cells?
Answer: Cell wall
Plant cells have a cellulose cell wall; animal cells do not.
What is the function of ribosomes in a cell?
Answer: Site of protein synthesis
Ribosomes are where proteins are made (protein synthesis).
A cell has a diameter of 0.05 mm. What is this in micrometres (µm)?
Answer: 50 µm
1 mm = 1000 µm, so 0.05 mm × 1000 = 50 µm.
Which of the following is a feature of a prokaryotic cell?
Answer: Genetic material is free in the cytoplasm and not enclosed in a nucleus
Prokaryotes such as bacteria have no nucleus; their DNA is a single loop free in the cytoplasm.
A microscope has an eyepiece lens of ×10 and an objective lens of ×40. What is the total magnification?
Answer: ×400
Total magnification = eyepiece × objective = 10 × 40 = ×400.
Which process moves water across a partially permeable membrane from a dilute solution to a more concentrated solution?
Answer: Osmosis
Osmosis is the diffusion of water through a partially permeable membrane.