Food-Source of Energy For Man NDA Questions

NDA BIOLOGY

Food-Source of Energy For Man MCQ Questions


13.
A 'complete protein' is one that:
A.
Contains only essential amino acids
B.
Contains all 20 amino acids in adequate proportions
C.
Cannot be digested by the human body
D.
Has the highest caloric value
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ANSWER :
B. Contains all 20 amino acids in adequate proportions
14.
The energy stored in one gram of protein when completely oxidised is approximately:
A.
2 kcal
B.
9 kcal
C.
7 kcal
D.
4 kcal
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ANSWER :
D. 4 kcal
15.
Which disease is caused by severe protein-energy malnutrition in children, characterised by muscle wasting?
A.
Rickets
B.
Marasmus
C.
Kwashiorkor
D.
Scurvy
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ANSWER :
B. Marasmus
16.
The biological value (BV) of a protein is a measure of:
A.
The caloric value of the protein
B.
The digestibility of protein
C.
The total protein content in food
D.
How efficiently the body utilises absorbed protein for growth and maintenance
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ANSWER :
D. How efficiently the body utilises absorbed protein for growth and maintenance
17.
Triglycerides (triacylglycerols) are composed of:
A.
One glycerol + three fatty acids
B.
Three glucose + one glycerol
C.
Two fatty acids + one cholesterol
D.
Three fatty acids + one phosphate group
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ANSWER :
A. One glycerol + three fatty acids
18.
Saturated fatty acids differ from unsaturated fatty acids in that saturated fatty acids:
A.
Have lower caloric value
B.
Contain one or more C=C double bonds
C.
Are found exclusively in plants
D.
Have no C=C double bonds and are solid at room temperature
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ANSWER :
D. Have no C=C double bonds and are solid at room temperature