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Biology Class 11 Chapter 2 - Biological Molecules - Part 3
1.
Which of the following is considered to be neutral:
a) Cytoplasm
b) HCl
c) Urine
d) Pure water
2.
Glyceraldehyde is one example of a group of sugers called:
a) Pentose
b) Tetrose
c) Triose
d) Octose
3.
Nitrogen bases such as choline, ethanolamine and serine are important of:
a) Sphingolipid
b) Phospholipid
c) Phosphatidycholine
d) Phosphodiester
4.
Which molecule is used for short term energy storage:
a) Chitin
b) Fat
c) Cellulose
d) Glycogen
5.
The functional group CooH is:
a) All of these are correct
b) Never ionized
c) Acidic
d) Basic
6.
Which of these is an example of hydrolysis:
a) Depitide + H
2
O + amino acid + amino acid
b) Amino acid + amino acid - dipeptide + H
2
O
c) Neither of these is correct.
d) Both of these A and B are correct.
7.
A fatty acid is unsaturated if it:
a) Contain double bonds
b) Contains an acidic group
c) Bonds to glycogen
d) Contain hydrogen
8.
Which is not a lipid:
a) Polysaccharids
b) Wax
c) Steroid
d) Fat
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