Biomolecules

BIOMOLECULES 1

These MCQs are intended for checking your Biology Chapter BIOMOLECULES​,  knowledge.

Which type of bond present in ribose sugar and pyrimidine in
nucleoside-

Deamination of cytosine give .............. Base

Specificity of a digestive enzyme depends on its

Which type of bond present in deoxyribose adenosine
monophosphate and phosphate in nucleotide-

For .Ribose sugar have all correct except -

Type of linkage present in a polynucleotide chain is -

Which of the following can have ribose sugar and
phosphoester bond -

In a 100 base pair linear DNA number of phosphodiester
bond and glycosidic bond is respectively

Which of these is not a trace element in plants?

The minerals responsible for the maintenance of fluid
balance in the body are :

In an experiment to study fermentation by yeast,
temperature was increased from 20°C to 30°C, rate of
enzyme catalysed reaction increases by

Accumulation of glucose 6-PO4
inhibits the activity of
gluco hexokinase. This is an example of

Coenzyme is

which is correct about ribose sugar

which of the following have negative charge

Which of the following is a purine

Mark the correctly matched -

Type of bond absent in ATP is -

Energy released from enzyme-substrate interaction is

Niacin is precursor of coenxyme :

Which of the following can be monomer which join to form
polynucleotide chain as monomer -

Which of the following statement is not true for allosteric
inhibition?

Presence of competitive inhibitor

Phosphoric acid link with AMP by ............. Bond

Purine ring have nitrogen at position -

Which type of bond present in ribose sugar and cytosine in
nucleoside-

Uric acid is derivative of -

Feedback inhibition of enzyme is influenced by

Which of the following have phosphodiester bond

xanthine obtained from deamination from-

Number of nucleotide present in linear DNA having 50
phosphodiester bond-

Iron storing protein found in animal tissues is

Which of the following is having phosphoester bond

Which type of bond present in deoxyribose adenosine and
phosphate in nucleotide-

Which type of bond present in deoxyribose sugar and adenine
in nucleoside-

Diameter of B-type DNA is -

Lysozyme occurs in

Which of the following have phosphodiester bond

A plasmid DNA having 300 phosphodiester bond per strand
have -

Which is incorrect about DNA

Which of the following is nucleotide -

Which of the following type of DNA is left handed coil

Which elements provide rigidity to teeth & bones?

Zymogens are

Which is most harmful for an enzyme?

Which of the following statements is incorrect regarding
enzymatic activity?

Enzymatic activity of salivary amylase stops on reaching
stomach due to change in

What will happen to an enzyme when apoenzyme is
separated from its metal component?

6-amino purine is another name for -

Which of the nitrogenous base have name 5-methyl uracil-

Which type of bond present in ribose sugar and purine in
nucleoside-

In a 680 nm DNA if 20 percent is Adenine than number of
guanine is

which is uncommon between sugar of ribose and deoxyribose

Which vitamin forms coenzymes FAD and FMN.

Which enzyme/s do not follow km constant?

Three DNA P ,Q and R have 20 percent A , 20 percent G and
30 percent G respectively if all three have length 340nm than
which is denature at highest temperature

Which of the following is not nucleoside

Glycosidic linkage absent in -

In a 200 base pair DNA if 25 percent in A than number of
hydrogen bond is -

Which of the following present in DNA

At temperature near freezing point, the enzymes are

Hypoxanthine obtained from deamination from-

Maximum concentration of enzymes (69-70%) in a cell
occur in

Higher value of Km constant for an enzyme indicates

Dry seeds can endure higher temperature than the
germinating seeds because

IN a polynucleotide chain with 10 nucleotide which is
correct-

Cyanide is a metabolic poison as it :

Which of the following position in sugar have OH group in
both ribose and deoxyribose-

In any linear DNA if 55 A and 35 G present than number of
H-bond present is-

Which type of bond present in deoxyribose adenosine
diphosphate and phosphate in nucleotide-

Niacin is precursor of coenxyme :

Action of bacterial antibiotics sulpha drugs is due to

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BIOMOLECULES 2

These MCQs are intended for checking your Biology Chapter BIOMOLECULES​,  knowledge.

Which amino acid not contain OH group in side chain-

Which of the following is absent in nucleotide-

Glycoproteins are known to play an important role in cell
recognition. The specificity of this recognition is provided
largely by

Sweetest sugar is –

Which of the following sequence is correct on the basis of
increasing molecular weight?

which of the following is aldose-

Which of the following is an amino acid contains sulphur ?

Nitrogenous base ‘Choline’ is present with

Which of the following originates from the tyrosine

Which type of bond present in Polysaccharide

which of the following is not heteropolymer-

t-RNA is also known as?

which of the following is not homopolymer-

which of the following is polymer of β-D glucose-

Which of the following is an amino acid contains sulphur ?

RNA responsible for directing proper sequence of amino
acids in protein synthesis is :

Which type of bond present in nucleic acid-

which of the following is not polymer of α-D glucose-

which of the following have helical structure-

Ketone bodies are by products of metabolism of :

One of these is not an amino acid :

Which of the following is strongest bond in the native
tertiary structure of globular protein?

B-DNA which is right-handed double helix contains __
base pairs per turn of the helix and each turn is __ long,

which of the following is pentose-

Which of the following should be present in acid soluble pool
but should be present in acid insoluble pool-

Most abundant protein on earth in plants are-

Which bond present between tertiary structure of protein-

Most abundant protein on earth in animals are-

What is true about glycogen?

Nicotinamide can be synthesised in human body from

Which of the following have heterocyclic ring-

What is common in all of them i.e. NAD, FAD, NADP,
ATP

At isolectric pH of Glycine Which is not true

Cytochromes are

Hydrolysis of sucrose yields :

In globular protein which amino acid probably found
inside of protein-

Which of the following is polar amino acid-

The major part of dry weight of plant is made of

α-D glucose is not present in-

Mark the correct-

Which of the following is optically inactive -

Number of nitrogen bases in a single strand of B-DNA
with 100 turns is

Study the given statements and select the correct answer.
(i) Cellulose is a homopolymer of glucose.
(ii) Inulin is a homopolymer of fructose.
(iii)Starch gives blue colour and glycogen gives red colour
with iodine solution.
(iv) Cellulose gives no colour with iodine solution.

Which of the following polysaccharides is not a polymer of
glucose?

The type of RNA that characteristically contains
methylated purines and pyrimidines is :

The amino acid which gives rise to thyroxine is :

What is Number of peptide bond in a protein with two
subunits each having 30 amino acid -

The enormous diversity of protein molecules is mainly due
to diversity of

Which of the following is not mucopolysaccharide

Protein having both structural and enzymatic traits is

A unit composed of sugar and nitrogen base linked by
glycosidic bond is

A form of amino acid with both positive and negative
charges simultaneously in the same molecule is

The amino acid with lowest molecular weight is :

What will the formula of a polysaccharide formed by the
condensation of 60 ribose sugar units.

Which of the following is not present in acid insoluble pool-

α(1-4) linkage present in –

Which of the following is a trisaccharide?

Examples of aromatic amino acids are:

Which of the following amino acid give pyruvate on
deamination-

Which type of bond present in diasaccharide-

Which of the following are product of sucrose hydroysis-

Which of the following is a chromoprotein?

Amino acid tryptophan gives rise to

Adult human haemolgobin consists of

A fatty acid not synthesized in man is:

Chargaff, in his experiments on the chemistry of DNA
estimated the base composition of human DNA and found
Adenine constitute 31% and Guanine 19%. The quantity of
cytosine in the DNA of a human somatic cell is likely to be

The maximum formation of mRNA occurs in :

Which of the following is monomer of cellulose?

Most abundant protein in human body is

Microtubule are rich in ………… amino acid-

which of the following is not homopolymer-

Hydroxylation of phenylalanine give …… amino acid-

Which of the following is not present in acid soluble pool-

Which is correct about enzyme –

Which type of bond Absent in secondary structure of
protein-

Agar- Agar is polymer of –

For lactose which is true-

Match Column -1 with Column - II and select the correct
option from the codes given below.
Column -1                 Column - II
A. Tetrose sugar      (i) Galactose
B. Pentose sugar     (ii) Maltose
C. Hexose sugar      (iii)Erythrose
D. Disaccharide       (iv) Ribose
(v) Sedoheptulose

which of the following is present in least amount in cell-
(from table)

The polysaccharides made up of glucose monomers are

Which of the following is nucleotide?

Which type of bond present in Carbohydrate -

Anomeric carbon in fructose is

B-DNA turn……….. in double helical structure-

which of the following is heterocyclic ring-

What is Number of peptide bond in a protein with two
subunits each having 30 amino acid -

Which of the following is not correctly matched for amount
of macromolecule in cell –

fructose is present in-

Cellulose the most important constituent of plant cell is
made up of :

The primary structure of a protein is due to

Nucleic acid was discovered as nuclein by :

Which of the following is only a ribose nucleotide?

Essential amino acids include

The cholesterol molecule is :

which of the following have secondary structure-

Which of the following is heterocyclic ring-

β-D glucose is monomer of –

On hydrolysis a nucleoside would not yield

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