NATIONAL 5 BIOLOGY - UNIT 1 - CELL
BIOLOGY EXAM 2025 QUESTIONS AND
ANSWERS
Name five parts of an animal cell? - ANS Nucleus, cytoplasm, cell membrane, ribosomes,
mitochondria
Name three structures found in plant cells but not in animal cells? - ANS Chloroplast, Cell
wall, Vacuole
If the eyepiece lens is X10 and the objective lens is X40, what is the total magnification? -
ANS x400
Name five features found in both plant and animal cells? - ANS Nucleus, cytoplasm, cell
membrane, ribosomes, mitochondria
Name the part of the cell that controls the activities of the cell? - ANS Nucleus
What important substances are made by ribosomes? - ANS Proteins
What controls the entry and exit of materials in a cell? - ANS Cell membrane
What is the function of the cytoplasm? - ANS Site of chemical reactions
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, What part of the cell is the site of aerobic respiration and makes ATP for the cell? -
ANS Mitochondria
Why is the cell wall important in plants? - ANS Stops them from bursting, gives shape and
support to the cell.
Where is an extra store of water in a plant cell? - ANS Vacuole
What important chemical reaction takes place inside a chloroplast? - ANS Photosynthesis
Name two type of cells other than animal and plant. - ANS Fungal and bacterial cells
Name two ways in which bacterial cells are different to the other three types. - ANS Bacterial
cells have no nucleus and no internal structures (e.g. mitochondria) except ribosomes.
Which two substances make up the cell membrane? - ANS Phospholipids and proteins
What do you call the movement of MOLECULES from a region of highER concentration to lowER
concentration. - ANS Diffusion
State two useful substances that cells gain by diffusion - ANS Oxygen, glucose, water
State two substances that cells lose by diffusion - ANS Carbon dioxide, waste substances
Iodine is often used to stain cells. What substance can it be used as a test for? - ANS Starch
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BIOLOGY EXAM 2025 QUESTIONS AND
ANSWERS
Name five parts of an animal cell? - ANS Nucleus, cytoplasm, cell membrane, ribosomes,
mitochondria
Name three structures found in plant cells but not in animal cells? - ANS Chloroplast, Cell
wall, Vacuole
If the eyepiece lens is X10 and the objective lens is X40, what is the total magnification? -
ANS x400
Name five features found in both plant and animal cells? - ANS Nucleus, cytoplasm, cell
membrane, ribosomes, mitochondria
Name the part of the cell that controls the activities of the cell? - ANS Nucleus
What important substances are made by ribosomes? - ANS Proteins
What controls the entry and exit of materials in a cell? - ANS Cell membrane
What is the function of the cytoplasm? - ANS Site of chemical reactions
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 1
, What part of the cell is the site of aerobic respiration and makes ATP for the cell? -
ANS Mitochondria
Why is the cell wall important in plants? - ANS Stops them from bursting, gives shape and
support to the cell.
Where is an extra store of water in a plant cell? - ANS Vacuole
What important chemical reaction takes place inside a chloroplast? - ANS Photosynthesis
Name two type of cells other than animal and plant. - ANS Fungal and bacterial cells
Name two ways in which bacterial cells are different to the other three types. - ANS Bacterial
cells have no nucleus and no internal structures (e.g. mitochondria) except ribosomes.
Which two substances make up the cell membrane? - ANS Phospholipids and proteins
What do you call the movement of MOLECULES from a region of highER concentration to lowER
concentration. - ANS Diffusion
State two useful substances that cells gain by diffusion - ANS Oxygen, glucose, water
State two substances that cells lose by diffusion - ANS Carbon dioxide, waste substances
Iodine is often used to stain cells. What substance can it be used as a test for? - ANS Starch
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 2
