Biology 11 Chapter - 2
Biological Molecules -
1.
1. An amino acid molecule has the following structure:
Which two of the groups combine to form a peptide link?
1 and 2
1 and 3
2 and 3
2 and 4
2.
Which class of molecule is the major component of cell membrane
phospholipid
cellulose
wax
triglyceride
3.
Glycerol is the back bone molecule for
ATP
glucose
triglyceride
enzyme
4.
A fatty acid is unsaturated if it
contains hydrogen
contains double bonds
contains double bonds
contains an acid group
bonds to glycogen
5.
. In RNA the nitrogen base that takes the place of thymine is
adenine
cytosine
guanine
uracil
6.
The ending-ose means a substance is a
sugar
lipid
protein
nucleic acid
7.
Glycolipids and lipoprotein are important components of
Glycolipids and lipoprotein are important components of
Glycolipids and lipoprotein are important components of
proteins
nucleic acids
bone structure
cellular membranes
8.
When two amino acids are linked to form peptide linkage .......... is
removed
hydroxyl
water
carbon
nitrogen
9.
What is the theoretical number of chemically different dipeptides that may
be assembeled from 10 different aminoacids.
400
300
200
100
10.
A polar molecule is ……………….. in water
soluble
insoluble
reactive
a functional group
11.
Estrogen, androgen and cholesterol are all examples of
glycolipids
lipoproteins
terpenes
steroids
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