National 5 Biology Revision
Where are nuclei found? ️️In the cells of green plants, animals and fungi.
Describe a nucleus's appearance. ️️Large, normally spherical structure containing thread like
chromosomes.
What is the function of a nucleus? ️️To control a cell's activities a...
Where are nuclei found? ✔️✔️In the cells of green plants, animals and fungi.
Describe a nucleus's appearance. ✔️✔️Large, normally spherical structure containing thread like
chromosomes.
What is the function of a nucleus? ✔️✔️To control a cell's activities and passes information from cell
to cell and genetic information (including DNA) from generation to generation.
Where are cell membranes found? ✔️✔️In the cells of green plants, animals and fungi.
Describe a cell membrane's appearance. ✔️✔️A thin layer surrounding the cytoplasm.
What is the function of a cell membrane? ✔️✔️To control the passage of substances into and out of
the cell.
Where are mitochondria found? ✔️✔️In the cells of green plants, animals and fungi.
Describe a mitochondria's appearance. ✔️✔️One of many, tiny, sausage like structures containing
enzymes.
What is the function of mitochondria? ✔️✔️Aerobic respiration.
Where are large central vacuole found? ✔️✔️In the cells of plants and fungi.
Describe a large central vacuole's appearance. ✔️✔️Fluid filled sac-like structure in cytoplasm.
, What is the function of a large central vacuole? ✔️✔️Stores water and solutes as cell sap and
regulates water content by osmosis.
Where are cell walls found? ✔️✔️In the cells of green plants, fungi and bacteria.
Describe a cell wall's appearance. ✔️✔️Outer layer made up of basket like structure of fibers
(structure and composition of cell wall of fungi and bacteria differ from that of green plant cells)
What is the function of a cell wall? ✔️✔️To support the structure of a cell
Where are Chloroplast found? ✔️✔️In the cells of green plants only.
Describe a Chloroplast's appearance. ✔️✔️One of many discus-shaped structures containing
chlorophyll.
What is the function of Chloroplast? ✔️✔️Photosynthesis
Where are Circular chromosomes found? ✔️✔️In the cells of bacteria only.
Describe the appearance of Circular chromosomes. ✔️✔️Single ring of genetic material.
What is the function of Circular chromosomes? ✔️✔️Control cell activities and pass genetic
information from cell to cell.
Where are Plasmids found? ✔️✔️In the cells of bacteria only.
Describe a Plasmid's appearance. ✔️✔️One of several tiny rings of genetic material.
What is the function of a Plasmid? ✔️✔️To control cell activities and pass genetic information from
cell to cell.
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