Biomolecules MCQs

Q. A non reducing sugar is glucose sucrose fructose maltose Answer: sucrose

Which one is fat soluble vitamin?

Q. The ratio between hydrogen and oxygen in a carbohydrate is 5:1 4:3 3:1 2:1 Answer: 2:1

Q. Cellular micromoleules are amino acids, water, minerals, nucleotides and sugar glycogen, amino acids, minerals and nucleotides water, minerals, proteins and nucleotides sugars, water, mineral, nucleotides an d proteins Answer: amino acids, water, minerals, nucleotides and sugar

Q. Number of essential elements in animals are 16 18 20 25 Answer: 25

Q. Enzymes, vitamins and hormones can be classified into a single category of biological chemicals, because all of these Enhance oxidative metabolism Help in regulating metabolism are conjugated proteins are exclusively synthesised in the body of a living organism as at present Answer: Help in regulating metabolism

Q. Cellulose, the most important constituent of plant cell wall is made up of Branched of glucose molecules linked by β-1, 4 glycosidic bond in straight chain and α-1,6 glycosidic bond at the site of branching Unbrached chain of glucose molecules linked by β–1,4 glycosidic bond Branched chain of glucose molecules linked by β-1, 4

Q. Which of the following nucleotide sequences contains four pyrimidine bases? GATCAATGC UAGCGGUAA GCUAGACAA both b and c Answer: GATCAATGC

Which purine base is found in RNA?

Q. In RNA, thymine is replaced by adenine guanine cytosine uracil Answer: uracil