QUIZ SCIENCE FORM 3 KSSM

What is the part of the eye that prevents the reflection of light?

• Sclera

• Choroid

• Cornea

• Yellow spot

What is the receptor for ear?

• Oval window

• Auditory nerve

• Cochlea

• Ossicles

How many receptors are present in the skin?

• 2

• 3

• 4

• 5

Why do we cannot see an image when it falls on the blind spot?

• Blind spot does not have photoreceptors.

• Blind spot is not sensitive to light.

• Blind spot is the most sensitive to light.

• Blind spot is adjacent to the optic nerve.

What are the causes of short-sightedness? (2 answers)

• Eye lens is too thick.

• Eyeball is too long.

• Eye lens is too thin.

• Eyeball is too short.

What is one of the stimuli for plant to carry out responses?

• Light

• Air

• Mineral salts

• Tropism responses

Humans can only detect sounds in the frequency range of...

• 10 - 10000 Hz

• 20 - 2000Hz

• 20 - 20000 Hz

• 20 - 40000 Hz

What is the part shown in the diagram above?

• Diaphragm

• Rib cage

• Intercostal muscle

• Trachea

Oxygen combines with haemoglobin in red blood cells to form...

• Carboxyhaemoglobin

• Iron

• Oxyhaemoglobin

• Red pigment

What are the adaptations of structure of alveolus to maximise the exchange of gaseous? (3 answers)

• Moist surface

• The wall of alveolus is one-cell thick

• Each alveolus is surrounded by a network of blood capillaries

• Small surface area