Grade 9 Revision Test

What is the meaning of SI unit ?

• International Systems of Units

• Systems for Inches

• a system of graphical data

• system to present data

Mass is

• the amount of space in an object

• the amount of matter in an object

• how long something is

• how far you travel

The basic unit of all organisms is

• an organ

• a tissue

• a cell

• a nucleus

What is the main function of the cell membrane ?

• Feeds the cell

• Gives energy to the cell

• Controls the cell

• Protects the cell

When a membrane is selectively permeable this means that

• nothing can get into the cell

• only certain things can get in and out of the cell

• nothing can get out of the cell

• nothing can get in or out of the cell

Photosynthesis is the process by which

• animals make their own food

• plant cells make their own food

• animal cells feed

• nothing happens in the cell

which of the following BEST describes the function of plant roots ?

• Support plants and allow leaves to get sunlight

• Anchor plants and take in water and nutrients from the ground

• Make food for plants and take in air

• Absorb light and energy and make sugar

Diffusion takes place in

• solids and gas

• liquids and gases

• liquids only

• gas only

Osmosis takes place in

• liquids only

• solids only

• gases only

• liquids and gases

What is another name for the circulatory system ?

• Blood system

• Cardiovascular system

• Running system

• Breathing system