Cambridge science grade 7: unit 2

Which 3 of these are the main charecteristics of a living organism?

• Movement

• Dying

• Respiration

• Nutrition

• Sleeping

Which of these micro-organisms contain chlorophyll?

• Bacteria

• Protozoa

• Algae

• Microscopic fungi

... is when an organic matter is broken down by micro-organisms. This process is both useful, but also is a nuisance.

(a)  

Which of these micro-organisms contain chlorophyll?

• Bacteria

• Protozoa

• Algae

• Microscopic fungi

Bread are made mainly

• By bacteria

• By yeast

• By heat

• By algae

Which of these diseases are made by micro-organisms?

• Tuberculosis

• Malaria

• Asthma

• Influenza(flu)

What does an animal cell has?

• Cell wall

• Cytoplasm

• Cell membrane

• Vacuole

• Nucleus

Which of these does a plant cell has but an animal cell doesn't has?

• Chloroplast

• Cytoplasm

• Cell membrane

• Vacuole

• Cell wall

A...is a group of cell that has similar cells

(a)  

Is bacteria important to human life? Why?

• Yes, because it makes all things

• Yes, because it helps decay dead bodies

• No, because it doesn't help us anyways

• No, because it could make the soil become worse