Page 107 - SUBSEC October 2017_Neat

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1. Water provides a constant external environment for many aquatic organisms. The specific
property of water which allows for this is its

(A) high heat capacity
(B) high heat of vaporisation
(C) high surface tension
(D) high heat of fusion

Item 2 refers to the diagram below.

2. The 3-unit molecular structure shown above is found in which of the following polymers?

(A) Glycogen
(B) Cellulose
(C) Starch
(D) Collagen

3. Which of the following numbers represent Item 4 refers to the amino acid alanine which
the correct number of fatty acid residues has the following moelcular formula.
normally present in a phospholipid molecule?
1
CH
3
(A) 1
(B) 2 2 NH2 – C – COOH 4
(C) 3
(D) 4 H
3
4. Which of the following functional groups
must combine to form a peptide bond?

(A) 1 and 2
(B) 3 and 4
(C) 2 and 4
(D) 2 and 3

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02107010/SPEC 2017