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Biology Class 9 Chapter 8 Nutrition-6
1.
Which one of the following is a trace mineral?
a) Chromium
b) Potassium
c) Chloride
d) Calcium
2.
Fluoride is a?
a) Trace mineral
b) Major mineral
c) Big mineral
d) Large mineral
3.
Which one of the following acts as a cofactor for enzymes?
a) Potassium
b) Sodium
c) Calcium
d) Iodine
4.
Which one of the following is helpfull in the maintenance of bones and teeth?
a) All of these
b) Calcium
c) Magnesium
d) Phosphorus
5.
Which one of the following is essential for normal thyroid function?
a) Iodine
b) Copper
c) Zinc
d) Fluoride
6.
Calcium is essential for?
a) All of these
b) Maintenance of bones and teeth
c) Maintenance of cell membranes
d) Activation of enzymes
7.
Tetany is caused due to the deficiency of?
a) Calcium
b) Iodine
c) Zinc
d) Iron
8.
Which one of the following is Not corelated with the deficiency of calcium?
a) Hard bones
b) Slow blood cloting
c) Soft bones
d) Wounds heal slowly
9.
Haemoglobin in RBCs contains?
a) Iron
b) Magnesium
c) Copper
d) Zinc
10.
Myoglobin is present in?
a) Muscle cells
b) RBCs
c) WBCs
d) Platelets
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