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SAI International School
Cl-X Subject- Biology
Chapter- Life Processes
Subtopic- Nutrition in Human Beings I
Module-3
Home Assignment I
Objective - MCQ
Q.1 Only two of the following Statements accurately describe what happens
in the mouth.
1. Amylase breaks down larger starch molecules into smaller maltose
molecules.
2. Chewing increases the surface area of food for digestion
3. Saliva emulsifies fats into smaller droplets.
4. Teeth breakup large insoluble molecules into smaller soluble
molecules.
Which statements are correct?
a) 1 and 2
b) 2 and 3
c) 3 and 4
d) 1 and 4
Q.2 Dental caries damages the
a) pulp
b) enamel
c) dentine
d) root canal
Q.3 In which order do these events occur in human nutrition?
a) Digestion"ingestion"absorption"assimilation
b) Digestion"ingestion"assimilation"absorption
c) Ingestion"digestion"absorption"assimilation
d) Ingestion"digestion"assimilation"absorption
Q.4 What structure prevents food from entering the trachea when you swallow?
a) oesophagus
b) tonsils
c) epiglottis
d) tongue
Q.5 Thediagramshowsthehumangut.Whichnumbered structures secrete
digestiveenzymes?
