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1046. Reaction of alcohol, with a carboxylic acid is known as
A. Subsitution Reaction
B. Addition Reaction
C. Esterification
D. Hydrogenation
Explanation:
1047. The source of immediate energy for cellular activity is :
A. FAD
B. RNA
C. NAD
D. ATP
Explanation:
1048. Which of the following are involved in the making up of a DNA nucleotide ?1. Phosphoric acid2. Deoxyribose sugar3. Nitrogenous base
A. 1 and 2
B. 2 and 3
C. 1 and 3
D. 1, 2 and 3
Explanation:
1049. Chromosomes are :
A. present only in the nucleus of a cell
B. the biggest in number in human cells
C. made up of DNA as a main component
D. visible in all cells at every time
Explanation:
1050. Which one of the following statements is correct ?
A. All enzymes are proteins
B. All proteins are enzymes
C. Some enzymes are proteins
D. Only bacterial enzymes are not proteins
Explanation:
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