Biomolecules Test-04

Biomolecules Test-04

This is Biomolecules Test-04 for CBSE class 11 Biology.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
How many subunits are there in human adult haemoglobin?
  • A
    2
  • B
    4
    Correct
  • C
    3
  • D
    5
2
The ratio constant for a species is
  • A
    G+C/A+T
    Correct
  • B
    A+C/T+G
  • C
    A+G/C+T
  • D
    T+C/G+A
3
Which one is not a denaturing factor for protein?
  • A
    High temperature
  • B
    High energy radiation
  • C
    High pressure
    Correct
  • D
    Drastic change in pH
4
Which one is an initiation codon for protein synthesis?
  • A
    AUG
    Correct
  • B
    UAA
  • C
    UGA
  • D
    UAG
5
One full turn of DNA strands involves
  • A
    Ten base pairs
    Correct
  • B
    Three base pairs
  • C
    One base pair
  • D
    Two base pairs
6
The formation of both peptide and glycosidic bonds involves
  • A
    Esterification
  • B
    Dehydration
    Correct
  • C
    Acidification
  • D
    Hydration
7
Secondary plant products are of great use in commerce in making
  • A
    Paints and colours
  • B
    None of these
  • C
    Drugs and perfumes
    Correct
  • D
    Poisons and furniture
8
Fevicol is a synthetic sticky substance insoluble in water. It is a type of…
  • A
    Cellulose
  • B
    Steroids
  • C
    Resins
    Correct
  • D
    Polysaccharides
9
The amino acids are linked together serially by
  • A
    Covalent bonds
  • B
    Hydrogen bonds
  • C
    Ionic bonds
  • D
    Peptide bonds
    Correct
10
The energy currency of cell is—
  • A
    NAD
  • B
    GDP
  • C
    ATP
    Correct
  • D
    ADP
11
Blood concentration of glucose in normal healthy individual is
  • A
    2-4.0mM
  • B
    3-5.0mM
  • C
    4.5-5.0mM
    Correct
  • D
    1-4.5mM
12
The chemical compounds under goes changes in shape without breakdown of bonds are called as
  • A
    Chemical process
  • B
    Inorganic chemical process
  • C
    Physical process
    Correct
  • D
    Biological process
13
ATP is
  • A
    Nucleotide
    Correct
  • B
    Nucleoside
  • C
    Nuleosome
  • D
    Purine base
14
What name is given to that part of enzyme where catalytic work is carried out?
  • A
    Active site
    Correct
  • B
    Enzymatic site
  • C
    Pro-active site
  • D
    Reactive site
15
Given graph shows effect of substrate concentration on rate of reaction of enzyme phosphatase. What does given graph indicate?
Question 15 figure 1
  • A
    At high substrate concentration pH changes
  • B
    Formation of E-S complex
  • C
    Rate is proportional to substrate concentration
  • D
    Presence of an enzyme inhibitor
    Correct