Question

MATCHING. Choose the item in column 2 that best matches oach item in column 1.(2 pto 00) Select the correct carbohydrate for each doseription 1) a disaccharide found in milk and milk A) maltose products B) lactose 2) an unbranched carbohydrate that stores glucose in plants • C) cellulose 3) a carbohydrate that stores energy in the human body D) fructose 4) a carbohydrate that is used to build cell walls in plants glycogen F) amylose 5) a monosaccharide found in fruit juices and honey, the sweetest carbohydrate 6) a disaccharide that occurs as a breakdown product of starch Match the following 7) the most abundant nudec acid in the ribosomes A) ERNA B) mRNA 8) the nucleic acid that contains a single anticodon for a specific amino acid C) rRNA 9) picks up the specific amino acids for protein synthesis 10) the nucleic acid that contains the codons for the arnino acids of a protein 11) synthesized by the DNA to carry the genetic message to the ribosomes

Answer 1

Q1.

1) Lactose is the disaccharide found in milk and milk products. Therefore option B)

2) Starch is a carbohydrate that stores glucose in plants. Starch is made up of glucose monomers. Amylose is a starch formed by unbranched chains of glucose monomers. Therfore option F)

3) carbohydrate that stores energy in the human body is glycogen, option E). Glycogen is stored form of glucose, present mainly in liver and muscles.

4) a carbohydrate that is used to build cell walls in plants is cellulose. Therefore option C)

5) Fructose is the sweetest carbohydrate and is also found in fruit juices, honey. Also, it is found in sweet potato and onion. Option D)

6) Maltose is the main product of the breakdown of starch. It is composed of two glucose units. Therefore option A).

Q 2.

7) The most abundant ( nearly 80 %) nucleic acid in the ribosome is ribosomal nucleic acid: rRNA, option C)

8) The nucleic acid that contains a single anticodon for a specific amino acid is Transfer RNA or tRNA, option A)

9) Messenger RNA (mRNA) nucleic acid picks up the specific amino acids for protein synthesis.Option B).

10) the nucleic acid that contains the codons for the amino acids of a protein is again mRNA. Option B)

11) mRNA is used to carry the genetic code from DNA to the ribosomes. Option B)

Note that mRNA has the genetic code which is a sequence of codons.

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