Solved MCQs of Biology Class 9
In carbohydrates the ratio of hydrogen two oxygen atoms is ……………. .
1:2
2:1
2:2
3:2
In the stomach pepsinogen is converted into:
Pepsin
Bicarbonate
HCl
GAstrin
Plants lacking ………… appear chlorotic.
Ca
Mg2
Mn
All
Dietary deficiency of ………………… is quite common.
Vitamin A
Vitamin B
Vitamin D
Vitamin E
The wavelike movement of muscle that pushes food through digestive system is called:
Churning
Emulsification
Absorption
Peristalsis
Which of the following macro nutrient is the part of chlorophyll?
Calcium
Magnesium
Sulphur
Iron
Saliva is alkaline and contains an enzyme:
Pepsine
Rennin
Ptyalin
Amylase
In which group of the following is present Mg?
Chlorophyll
Cytochrome
Haemoglobin
None of these
In adult human, the esophagus is about _____________ long.
25 cm
25 mm
25 m
25 ft
The pancreas produces digestive enzymes and releases them into;
Colon
Gallbladder
LIver
Duodenum
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