Question 1 of 10 10 total questions
The chemical process that releases energy from food in cells is
A respiration
B photosynthesis
C fermentation
D transpiration
Explanation Answer: A
Respiration releases energy from food.
Which sense organ is used for hearing?
Explanation Answer: D
The ear is for hearing.
The third tier of cell organisation after cells is
A organ
B organism
C system
D tissue
Explanation Answer: D
Cells ?¸tissues ?¸organs ?¸systems.
Which of these is an infectious disease?
A diabetes
B malaria
C cancer
D asthma
Explanation Answer: B
Malaria is caused by a parasite.
What do plants release during photosynthesis?
A carbon dioxide
B nitrogen
C hydrogen
D oxygen
Explanation Answer: D
Plants release oxygen.
The part of a plant that absorbs water from the soil is the
A flower
B leaf
C root
D stem
Explanation Answer: C
Roots absorb water.
Which is a vertebrate?
A crab
B fish
C snail
D insect
Explanation Answer: B
Fish have a backbone.
Which organ removes waste from the blood?
A skin only
B stomach
C kidney
D heart
Explanation Answer: C
The kidney filters the blood.
The colour of blood is due to which pigment?
A chlorophyll
B melanin
C keratin
D haemoglobin
Explanation Answer: D
Haemoglobin makes blood red.
Which of these is needed for photosynthesis?
A nitrogen
B sunlight
C urea
D oxygen
Explanation Answer: B
Sunlight is a raw material for photosynthesis.
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