Question # 1

In deoxyribose, oxygen is removed from carbon number

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1

2

3

4

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

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Wax

Glucose

Acyl glycerol

Phospholipids

Glycerol, fatty acids and phosphoric acid give rise to:

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Phospholipid

Phosphatidic acid

Phosphatidyl choline

Phosphatidylethnoline

RNA and Proteins are components of

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Chromosomes

Receptors

Secretions

Ribosome

Insulin is a/an:

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Osmotic Protein

Transport Protein

Regulatory Protein

Catalytic Protein

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

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1

2

Both

3

______ are important components of brain and plasma membrane:

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Nucleoproteins

Glycolipids

Lipoproteins

Phospholipids

The next to simplest amino acid is

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Alanine

Glycine

Serine

Glutamine

Nucleotide is to ___ as amino acid is to ___

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Nucleic acids, Lipids

Nucleic acids, Proteins

Proteins, Lipids

Lipids, proteins

Chemical formula of pentose sugar present in DNA

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C₅H₉O₅

C₅H₁₀O₅

C₅H₁₀O₄

None

Monosaccharides are major component of

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DNA, ATP, RuBP, Lecithin

DNA, NAD, Insulin

DNA, NAD, ATP, RuBP

DNA, RNA, Myosin

The simplest mono saccharide containing keto group is:

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Glyceraldehyde

Glucose

Dihydroxyacetone

Ribose

Which of the following nitrogenous base have methyl group

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Adenine

Guanine

Uracil

Thymine

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

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1

2

3

4

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

In free state Glucose is present in:

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Grapes

Dates

Figs

All Fruits

Pick the odd one

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Cellulose

Galactose

Agar

Pectin

Which of the following is not a homopolysccharide?

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Starch

Chitin

Pectin

Glycogen

Which of the following is dimer of glucose

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Sucrose

Fructose

Maltose

Cellulose

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Other Links

MDCAT Biology Chapter 3 Biological Molecules Online Test MCQs With Answers

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