Cells GCSE

State 4 common features of a plant and animal cell

State 4 common features of a plant and animal cell

Cell membrane, nucleus, mitochondria, cytoplasm

State 3 features of a plant cell that are not in an animal cell

Cell wall, vacuole, chloroplasts

What is the function of the nucleus?

Contains the genetic information for the organism

What is the function of the cell membrane?

Controls what enters and leaves the cell

What is the function of the mitochondria?

Aerobic respiration (chemical reactions of respiration)

What does the nucleus contain?

DNA (deoxyribonucleic acid)

What is the function of the chloroplasts?

Site of photosynthesis

Why do muscle cells have many mitochondria?

Muscles require a lot of energy

What is the function of the cell wall?

Provides support and stops the cell from bursting when there is too much water

What is the function of the cytoplasm?

Where the chemical reactions take place

What is the function of the vacuole?

Provides support and contains cell sap

What do chloroplasts contain?

Chlorophyll

Why do all plant cells not have chloroplasts?

Not all cells need to carry out photosynthesis so not all need to trap light

Where are the mitochondria located?

In the cytoplasm of the cell

What is a plant cell wall made of?

Cellulose

How is the DNA arranged in a bacterial cell?

Circular chromosome, loose in the cell

Why would we use the high power lens?

When we need to view cells in greater detail

What do we call the sample we are viewing under the microscope?

Specimen

What can we use to see specimens more clearly?

Stains

Why must the coverslip be lowered carefully?

To avoid air bubbles

What do we use to view cells?

Microscope

Why do we start viewing through the low power lens?

Allows you to find the specimen more easily

State the names of the 2 types of lens

Eye piece lens and objective lens

What process happens to cells to allow them to be specialised?

Differentiation

What is formed when cells with the same specialised structure and function are grouped together?

Tissues

What name is given to organs that are grouped together?

Organ systems