REVISION (2)

Test Yourself:

1. Are all microorganisms harmful?
2. State two uses of microorganisms.
3. Name one food that needs yeast to produce.
4. How do scabies and conjunctivitis spread?

Answer:

1. No.
2. To produce food and to make fertilisers
3. Bread / tapai / tempe
4. Through direct contact

Checkpoint:

1. Which of the following is not a living thing?

A. Microorganisms              B. Yeast               C. Bread               D. Human

2. Which statement about microorganisms is true?

A. Most microorganisms cannot grow.

B. Microorganisms need air to breathe.

C. Microorganisms are tiny animals.

D. Microorganisms can only be found in water.

3. Most microorganisms are too tiny to be seen with the naked eye. How can they be seen?

A. With spectacles  B. Through a telescope   C. Through a periscope D. Through a microscope

4. Which group of microorganisms are the smallest in size?

A. Viruses                     B. Bacteria                 C. Fungi                    D. Protozoa

5. Diagram 1 show two types of traditional food.

tempe

tapai

 Diagram 1

What do tempe and tapai have in common?

A. They are made from topioca.

B. They are made from soya beans.

C. They are made from glutinous rice.

D. They are made with the use of yeast.

6. * Sore throat      * Fever       * Runny nose         * Itchy skin rashes

Which diseases has these symptoms?

A. Flu                    B. Cough                C. Measles               D. Conjunctivitis

7.Chickenpox, measles and mumps are caused by viruses. They can be prevented through _____.

A. antibiotics          B. medications         C. antiseptics         D. vaccination

8. Diagram 2 shows two pieces of bread after a few days.

Diagram 2 shows the mouldy bread

What will happen if we eat the bread shown in Diagram 2?

A. We will have tooth decay.

B. We will be infected with measles.

C. We will have chickenpox.

D. We will have a stomach upset.