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Biology

Biology
Sugar is a component of which of the following?

Both B & C
Lipids
Carbohydrates
Nucleic acids

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Biology
Which organelle performs cellular respiration?

Chloroplasts
All of these
Mitochondria
Cytolasm

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Biology
To complete one heart beat the time taken is

0.8 second
1.5 sec
1 sec
1 minute

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Biology
Digestion of starch in mouth takes place by

Amylase
Ptyline
Lipase
Pepsin

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Biology
Sickle-cell anaemia is due to

Bacteria
Genes
Hormones
Viruses

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Biology
Deficiency of fluoride leads to Which one of the following health problems?

Stiffening of joints
Bending of bones
Mottling of tooth
Tooth caries

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