MEDIUM
Diploma
IMPORTANT
Earn 100

Explain what feature of the structure of glycerol (propane-1,2,3-triol) allows fatty acid molecules to become attached to it to make fats, and state the name of the reaction by which this occurs.

Important Questions on Biochemistry

MEDIUM
Diploma
IMPORTANT

Lactose is a typical disaccharide. Suggest a reason why fatty acids can be attached to it.

MEDIUM
Diploma
IMPORTANT

The fatty acids in olestra are smaller than those in cooking fats. Suggest a reason for this.

MEDIUM
Diploma
IMPORTANT

State the name of the two polymeric forms of starch.

MEDIUM
Diploma
IMPORTANT

Describe, in terms of polarity and solubility, the most common properties of vitamins A and D.

MEDIUM
Diploma
IMPORTANT

The formulae of vitamin B3 (niacin) and vitamin E (α-tocopherol) are given below.

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Identify two functional groups in vitamin B3 and two functional groups in vitamin E.

MEDIUM
Diploma
IMPORTANT

In the human body, vitamin E acts as antioxidant. Identify the functional group or groups that are responsible for anti oxidative properties of this vitamin.

MEDIUM
Diploma
IMPORTANT

Predict, with reference to functional groups and polarity, whether each of the following vitamins is water-soluble or fat soluble.

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MEDIUM
Diploma
IMPORTANT

Suggest which vitamin (B3 or E) must be ingested regularly in small quantities and which one can be taken at much longer intervals but in larger amounts without any detrimental health effects.

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