EASY
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Which one of the following carbohydrates is a heteropolysaccharide?

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Important Questions on Biomolecules

EASY
Which of the following are not secondary metabolites in plants?
EASY
Secondary metabolites such as nicotine, strychnine and caffeine are produced by plants for their
MEDIUM

Match List - I with List- II.

Column-I Column-II
(a) Protein (i) C=C double bonds
(b) Unsaturated fatty acid (ii) Phosphodiester bonds
(c) Nucleic acid (iii) Glycosidic bonds
(d) Polysaccharide (iv) Peptide bonds
Choose the correct answer from options given below.
MEDIUM
Match List-I with List-II
List-I
(Biological Molecules)
List-II
(Biological functions)
(a) Glycogen (i) Hormone
(b) Globulin (ii) Biocatalyst
(c) Steroids (iii) Antibody
(d) Thrombin (iv) Storage product

Choose the correct answer from the options given below:

EASY
Which one of the following molecules is a secondary metabolite?
MEDIUM

Select the false statement ?
(i) Living process is a constant effort falling into equilibrium
(ii) Energy can enter and leave a cell
(iii) Matter can enter and leave a cell
(iv) Metabolic pathways are interlinked

MEDIUM

Read the following statements on lipids and find out the correct set of statements:

(a) Lecithin found in the plasma membrane is a glycolipid.

(b) Saturated fatty acids possess one or more C=C bonds.

(c) Gingelly oil has a lower melting point, and hence remains as oil in winter.

(d) Lipids are generally insoluble in water but soluble in some organic solvents.

(e) When a fatty acid is esterified with gIycerol, monoglycerides are formed.

Choose the correct answer from the options given below:

HARD
It is much easier for a small animal to run uphill than for a large animal, because:
EASY
Which one of the following statements is wrong?
MEDIUM
Choose the correct statement
I) Secondary metabolites do not have identifiable physiological processes in plants, fungal and microbial cells
II) Bio macromolecules are acid insoluble organic compounds with mol wt more than 10,000 daltons
III) Uridylic acid and cytidylic acids are derived from uracil and cytosine by esterification
IV) Lecithin and lectin are phospholipids found in cell membrane
EASY

Study the given statements and select the correct option?
(i) Carbohydrates, proteins, nucleic acids and lipids are primary metabolites
(ii) Alkaloids, flavonoids, rubber etc; are secondary metabolites
(iii) Linoleic, linolenic and palmitic acids are the three essential fatty acids

MEDIUM
Match the following lists.
  List-I   List-II   List-III
A Coenzymes are organic compound i No structure similarities I Ribose-5 phosphate isomerase
B Isomerases ii Differ from inorganic catalysis II During catalysis
C Non-competitive enzyme inhibition iii Catalyzing interconversion of optical positional isomers III Operates at high temperatures also
D Enzyme catalysts iv With the apoenzyme only as a transient IV Metal ion of copper

The correct match is:

EASY

Identify the labelled parts 1, 2, 3, 4 in the concept of activation energy shown in the below diagram?

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MEDIUM

Assertion (A): The cellular pool provides all the necessary materials for the structure and functions of a cell
Reason (R): For the survival of a cell steady state within the cell is necessary

EASY
Which one of the following is NOT an unsaturated fatty acid?
MEDIUM
Which of the following is not polymeric?