EDEXCEL GCSE BIOLOGY 2025/2026 EXAM
CURRENTLY TESTING QUESTIONS WITH
DETAILED CORRECT ANSWERS (VERIFIED) FOR
GUARANTEED PASS TOP-RATED A+.
EDEXCEL GCSE BIOLOGY
Ace your Edexcel GCSE Biology exam with this targeted revision
guide. It covers all key topics, from cell biology to genetics and
ecology, with clear explanations and practice questions. Boost your
confidence and improve your exam technique to achieve the best
possible grade.
In which type of cell would you find a cell wall, chloroplasts
and a vacuole? ...... ANSWER ....... plant cell
What does an animal cell have? ...... ANSWER ....... -
cytoplasm
- nucleus
- ribosomes
- cell membrane
- mitochondria
What does the nucleus do? ...... ANSWER .......
contains genetic material that controls the activities of the
cell
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What is the cytoplasm? ...... ANSWER ....... gel-like
substance where most of the chemical reactions happen. It
contains enzymes which control these chemical reactions
What is the cell membrane ...... ANSWER ....... holds
the cell together and controls what goes in and out
What happens in the mitochondria? ...... ANSWER .......
these are where most of the reactions for respiration take
place. Respiration releases energy that the cell needs to
work
What happens in the ribosomes? ...... ANSWER .......
these are where proteins are made in the cell
What does a bacterial cell NOT have? ...... ANSWER
....... a nucleus- genetic material floats in the cytoplasm
What is a yeast cell an example of? ...... ANSWER .......
a single cell organism
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What does a yeast cell have? ...... ANSWER ....... -
nucleus
- cytoplasm
- cell membrane
- surrounding cell wall
How is a leaf cell different from a yeast cell? ......
ANSWER ....... leaf cells have chloroplasts and a
cellulose cell wall. yeast cells have neither
What is the definition of diffusion? ...... ANSWER .......
the Net movements of PARTICLES from an area of HIGH
CONCENTRATION to an area of LOW
CONCENTRATION down a CONCENTRATION
GRADIENT
What substances can diffuse through cell membranes? ......
ANSWER ....... small molecules like oxygen, glucose,
amino acids and water
What substances can't diffuse through cell membranes?
...... ANSWER ....... big molecules like starch and
proteins
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What are some examples of diffusion? ...... ANSWER
....... - the diffusion of oxygen into the cells of the body
from the bloodstream as the cells are respiring (and using
up oxygen)
- the diffusion of carbon dioxide into actively
photosynthesising plant cells
- the diffusion of simple sugars and amino acids for the gut
through cell membranes
When, and in which direction, will diffusion take place in
solutions and in gases? ...... ANSWER ....... - if two
solutions are separated by a cell membrane, particles will
move from a region of high concentration to a region of
low concentration
- gases will also diffuse through the air from a region of
high concentration to a region of low concentration
How is a leaf cell adapted to carry out photosynthesis? ......
ANSWER ....... - the leaf has mesophyll tissue
- the mesophyll cells contain chloroplasts which can
photosynthesise