Ans. (c)
Tooth enamel is the hardest substance in the human body. It protects teeth from wear and tear caused by chewing and grinding.
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1. Enamel is composed of 96% hydroxyapatite (calcium phosphate).
2. It has no living cells and cannot regenerate once damaged.
3. Its strength exceeds that of bone, which contains more organic material.
English
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8 Mins English English100 Questions100 Marks90 Mins English English10 Questions10 Marks8 Mins EnglishBile juice is stored in a sac known as _________.
In the context of digestion, bolus is best described by which of the following options?
What do we call the process through which bacterial and fungal enzymes degrade detritus into simpler inorganic substances?
According to the induced-fit model of enzyme action, substrate binding __________.
A patient lacking bile production would suffer from deficiency in absorption of ______.
In glycolysis, which enzyme catalyses the rate-limiting phosphorylation of fructose-6-phosphate?
Oesophagus belongs to which major organ system in the human body?
What is the chemical name of the substance that forms the tooth enamel in the human body?
Which of the following is NOT a part of the alimentary canal of the human body?
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