SCS Year 7 Tissues and Organs

The specimen is placed in this place

• A

• B

• C

• A or B

Part B is called

• The objective lens

• The stage

• The light source

• The wheel

What is the total magnification if the eyepiece lens is 10x and the objective lens is 4x?

• 4x

• 14x

• 40x

• x400

When preparing cells to view under the microscope they are stained to

• nourish the cell

• highlight the cell organelles

• keep the cell turgid

• none of the above

Which cell does not contain a nucleus?

• Red blood cell

• Nerve cell

• Egg cell

• Leaf cell

Some specialised cells have a large surface area to

• carry nerve impulses a long way

• remove particles from the trachea (windpipe)

• absorb more water from the soil

• let them grow bigger

What is the job of the mitochondria?

• To release energy for movement

• To release chemicals to help it penetrate the egg

• To release chemicals to help it find the egg

• To carry the genetic information to the egg

What is the correct order of organisation?

• tissues-cells-organs-organ systems-organism

• cells-organism-organs-organ systems-tissues

• organism-cells-organs-organ systems-tissues

• cells-tissues-organs-organ systems-organism

A group of similar cells (nervous, muscle and epithelial) are known as

• cells

• organs

• tissues

• atoms

This is an example of

• a cell

• an organ

• an organ system

• a tissue