NATIONAL 5 BIOLOGY - UNIT 1 END OF
UNIT TEST 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
What type of cell(s) contain plasmids? - ANS Bacteria
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
What is the site of aerobic respiration (a chemical reaction which releases energy from food) in
a cell? - ANS Mitochondria
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, Which types of cell(s) have a cell wall? - ANS Plants, Fungal and Bacterial
Where do you call the fluid-filled sac containing water, sugars and salts which is found in a plant
or fungal cell? - ANS Vacuole
What chemical reaction takes place inside a chloroplast uisng energy from the sun? -
ANS Photosynthesis
Name the pigment found in chloroplasts which trap light energy from the sun? -
ANS Chlorophyll
What is a plant cell wall composed of? - ANS Cellulose
Are plant and bacterial cell walls made of cellulose? - ANS No - only plant
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 organelles except ribosomes.
What do bacteria have instead of a nucleus? - ANS A loop of DNA and circular plasmids.
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 (down the concentration gradient). - ANS Diffusion
State two useful substances that cells gain by diffusion - ANS Oxygen, glucose, amino acids
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 2
UNIT TEST 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
What type of cell(s) contain plasmids? - ANS Bacteria
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
What is the site of aerobic respiration (a chemical reaction which releases energy from food) in
a cell? - ANS Mitochondria
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 1
, Which types of cell(s) have a cell wall? - ANS Plants, Fungal and Bacterial
Where do you call the fluid-filled sac containing water, sugars and salts which is found in a plant
or fungal cell? - ANS Vacuole
What chemical reaction takes place inside a chloroplast uisng energy from the sun? -
ANS Photosynthesis
Name the pigment found in chloroplasts which trap light energy from the sun? -
ANS Chlorophyll
What is a plant cell wall composed of? - ANS Cellulose
Are plant and bacterial cell walls made of cellulose? - ANS No - only plant
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 organelles except ribosomes.
What do bacteria have instead of a nucleus? - ANS A loop of DNA and circular plasmids.
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 (down the concentration gradient). - ANS Diffusion
State two useful substances that cells gain by diffusion - ANS Oxygen, glucose, amino acids
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 2
