Match the macromolecule with the smaller subunits that are used to build up the
ID: 227415 • Letter: M
Question
Match the macromolecule with the smaller subunits that are used to build up the macromolecule. [You will need to match from two lists] You used your excellent skills to isolate a large amount of outer plasma membranes from eukaryotic cells. However, when you analyzed these membranes you discovered that it was lacking one of the 4 major kinds of macromolecules. What was the type of macromolecule that was absent in your membrane preparation? [You will need to choose from a list] Match each DNA nucleotide base to its complementary base with which it can form a base pair. [You will need to match from two lists]Explanation / Answer
Ans. 8. The actual results will depend on the “list” provided in the question. In absence of such information, a hypothetical match is presented below.
Macromolecules Building blocks (smaller subunits)
I. Protein A. Amino acids
II. Nucleic acids B. Nucleotides
III. Lipids C. Mono-, di-acylglycerides, etc.
IV. Carbohydrates (Polysaccharides, Starch) D. glucose
Ans. 9. The missing macromolecule is “nucleic acids”.
The plasma membrane consists of lipids (major component- phospholipids), proteins (intrinsic and extrinsic proteins acting as membrane receptors, ion channels, etc.) and carbohydrates (glucose, fructose, etc. sugar linked to lipids and proteins). However, the membrane lacks nucleic acids (DNA/ RNA) which is present only in nucleus (DNA, RNA) or in cytoplasm (RNA) but not in the membrane.
Ans. 10.
DNA nucleotide base Complementary Base
I. Thymine, T A. Adenine, A
II. Guanine, G B. Cytosine, C
In DNA, T pairs complementarily with A; and G pairs complementarily with C.
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