Question # 1

Which of the following is NOT a function of proteins.

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Fight against pathogen

Carry genetic information

Transport oxygen in the blood

Help in digesting food

The amout of energy obtained from one gram of fat is.

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9 Kcal/g

5 Kcal/g

13 Kcal/g

17 Kcal/g

All the nucleotides of RNA differ from the nucleotides of DNA in having different

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Nitrogen base

Phosphate group

Pentose sugar, nitrogen base

Carboxylic group

Different amino acids differ from each othe ron the basis of their .........group

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Amino

Phosphate

Alkyl

Carboxylic

This is a heredity materials .

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rRNA

RNA

tRNA

DNA

Which of the following statements regardign genes is false.

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Genes are located on chromosomes

Genes consist of a long sequence of DNA

A gene contains information for the production of a protein

Each cell contains a sigle copy of every gene

Which is not a function of carbohydrates.

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Providing energy

Forming the primary structure of cell membranes

Breaking down into glucose

Serving as building blocks for complex carbohydrates

Both strands of DNA are held together by hydrogenbonding double hydrogen bonds are present between

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Adenine and guanine

Adenine and thymine

Cytosine and guanine

Cytosine and thymine

Genes conatain instuctions for the synthesis of.

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Fats

Protens

Vitamins

Carbohydrates

How do understand fatty acids differ from saturated fatty acids.

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They are found only in animal fats

They contains double bonds in their hydrocarbon chains

They have more hydrogen atoms

They are solid at room temperature.

%age of protein is dry mass of protoplasm.

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15

50

10

18

Which nitrogenous base is found in RNA but not in DNA.

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Adenine

Uracil

Guanine

Thymine

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