Question # 1

In a phospholipid molecule, phosphoric acid is attached to the carbon number_____ of glycerol.

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1

2

3

4

Which of the following does not contain peptide bond

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Hemoglobin

Myoglobin

Insulin

Cutin

Which of the following is not a homopolysccharide?

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Starch

Chitin

Pectin

Glycogen

The simplest mono saccharide containing keto group is:

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Glyceraldehyde

Glucose

Dihydroxyacetone

Ribose

Which of the following bond is not present in tertiary structure of proteins

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Peptide

Hydrogen

Ionic

Ester

In deoxyribose, oxygen is removed from carbon number

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1

2

3

4

Monosaccharides are major component of

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DNA, ATP, RuBP, Lecithin

DNA, NAD, Insulin

DNA, NAD, ATP, RuBP

DNA, RNA, Myosin

Glycerol, fatty acids and phosphoric acid give rise to:

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Phospholipid

Phosphatidic acid

Phosphatidyl choline

Phosphatidylethnoline

The bond formed between glucose and fructose to form sucrose

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α 1 , 4 Glycosidic bond

β 1 , 4 Glycosidic bond

α 1 , 2 Glycosidic bond

β 1 , 2 Glycosidic bond

Secondary structure is the ultimate structural level of which of the following proteins?

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Trypsin

Insulin

Keratin

Glucose

When Fructose form ring structure, It is

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6 Cornered

5 cornered

4 cornered

3 cornered

Pick the odd one

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Cellulose

Galactose

Agar

Pectin

In free state Glucose is present in:

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Grapes

Dates

Figs

All Fruits

Glyosidic bond is formed by the

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Removal of Oxygen

Addition of Water

Addition of Oxygen

Removal of Water

Chemical formula of pentose sugar present in DNA

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C₅H₉O₅

C₅H₁₀O₅

C₅H₁₀O₄

None

How many nitrogen atoms are found in lecithin

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1

2

3

4

Glycine can be converted to alanine by

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Addition of carbon and 2 hydrogens

Removal of carbon and 2 hydrogens

Addition of Methyl group

Removal of hydrogen and 2 carbons

Pick up ester bond present in nucleotide

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P-O-C

C-O-C

N-O-C

S-O-C

F. Sanger was the first scientist who determined the ___ structure of a protein molecule

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Primary

Secondary

Tertiary

Quaternary

What is the theoretical number of chemically different dipeptide that can be made from 2 different amino acids

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1

2

4

8

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MDCAT Biology Chapter 3 Biological Molecules Online Test MCQs With Answers

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