Question # 1

___ gives blue color with iodine

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Glycogen

Dextrin

Cellulose

Starches

In free state Glucose is present in:

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Grapes

Dates

Figs

All Fruits

Nucleotide is to ___ as amino acid is to ___

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Nucleic acids, Lipids

Nucleic acids, Proteins

Proteins, Lipids

Lipids, proteins

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

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1

2

Both

3

In deoxyribose, oxygen is removed from carbon number

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1

2

3

4

Which of the following reaction is reverse of others

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Hydrolysis

Decondensation

Decomposition

Condensation

Which of the following does not contain peptide bond

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Hemoglobin

Myoglobin

Insulin

Cutin

The simplest mono saccharide containing keto group is:

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Glyceraldehyde

Glucose

Dihydroxyacetone

Ribose

Which of the following is correct option

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Nucleoside does not contain phosphate

Nucleotide has three sub-units

Ester bond is present in acylglycerols

All

Most of the proteins are composed of _____ types of amino acids

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170

150

25

20

The amount of DNA in _____ is one half to that of_____:

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Somatic cells, Germ cells

Osteocytes, Somatic cells

Germ cells, Somatic cells

Somatic cells, Gametocytes

Which part of amino acid give its physical and chemical properties

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Amino group

Carboxylic group

Alpha carbon

Alkyl group

Pick up the example of a dinucleotide:

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ATP

GTP

ADP

NAD

Which level of protein structure is responsible for maintenance of helix shape of an enzyme

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Primary

Secondary

Tertiary

Quaternary

In tertiary structure, presence of hydrophilic amino acids at the surface of proteins and hydrophobic amino acids buried inside, indicate

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Nature of bonding

Function of protein

Nature of medium

Shape of protein

Lipids store double amount of energy as compared to same amount of carbohydrates, because of

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Higher proportion of C-H bonds

Higher proportion of C-N bonds

Higher proportion of C-O bonds

Lower proportion of C-O-P bonds

The Organic biomolecule which is widespread in bacterial animal and plant cells is

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Wax

Glucose

Acyl glycerol

Phospholipids

______ are important components of brain and plasma membrane:

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Nucleoproteins

Glycolipids

Lipoproteins

Phospholipids

In a DNA duplex , what will be distance in between two consecutive base pairs:

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3.4 Angstrom

34 Angstrom

0.34 Angstrom

340 Angstrom

Pick the odd one

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Cellulose

Galactose

Agar

Pectin

Pick out the phospholipid from the following

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Phosphatidylserine

Lecithin

Phosphatidylcholine

All

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MDCAT Biology Chapter 3 Biological Molecules Online Test MCQs With Answers

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