Solved MCQs of Biology Class 9
Which of following helps in lowering blood cholesterol and sugar levels?
Roughage
Lipids
Vitamin
Carbohydrates
……………… is most abundant substance in human body.
Water
Carbon
Nitrogen
Phosphorus
Fertilizers are of ……. types.
Two
Three
Four
None
Which group of enzymes breaks up starches and other carbohydrates?
Proteases
Lipases
Amylases
None of these
…………….. produce bile.
Stomach
Liver
Intestine
All
One gram of lipids contains energy:
4 kilocalories
6 kilocalories
9 kilocalories
7 kilocalories
Oral cavity opens into ………….. .
Phyranx
Lyranx
Trachea
Bronchi
Stomach open into …………… .
Small intestine
Large intestine
Both a and b
None
Which of the following is not a macronutrient?
Nitrogen
Oxygen
Carbon
Nickel
The pancreatic juice contains …………. enzymes.
Two
Three
Four
Five
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