Biological Classification Test

Biological Classification

This is Biological Classification 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
Cellular genes which are known to take part in producing cancer are termed as
  • A
    Proto-oncogenes
  • B
    Inactive oncogens
  • C
    Viral oncogens
  • D
    Cellular oncogens
    Correct
2
Which one is important in nutrient recycle and act as decomposer and mineralisers of the biosphere
  • A
    Amphibians
  • B
    Algae
  • C
    Protozoa
  • D
    Fungi
    Correct
3
In fungus, food reserves is
  • A
    Glycogen and fat
    Correct
  • B
    Lipid
  • C
    Glucose and fat
  • D
    Phosphoglceride
4
In which class of fungi the mushroom belongs to
  • A
    Deuteromycetes
  • B
    Phycomycetes
  • C
    Ascomycetes
  • D
    Basidiomycetes
    Correct
5
Which is the possible region of respiration in bacteria
  • A
    Mesosome
    Correct
  • B
    Cell wall
  • C
    Nucleoid
  • D
    Mitochondria
6
A bacterium capable of tolerating extreme heat, dryness and toxic chemicals is probably having
  • A
    Endogenous buds
  • B
    Endotoxins
  • C
    Endospore
    Correct
  • D
    Thick wall
7
When a fresh water protozoan is placed in marine water----
  • A
    The contractile vacuole increase in size
  • B
    Number of contractile vacuole increases
  • C
    The contractile vacuole disappear
    Correct
  • D
    The contractile vacuole remain same
8
The plant cells differ from animal cells in
  • A
    Having cell membrane and golgibodies
  • B
    None of these
  • C
    Having chloroplast and mitochondria
  • D
    Having cell wall and chloroplast
    Correct
9
Plants complete their life cycle in two phase, saprophytic and gametophytic which occurs alternately called
  • A
    Alternation of generation
    Correct
  • B
    Change in phases
  • C
    None of these
  • D
    Alternation of diploid and haploid
10
Sexual reproduction is by copulation of male and female followed by embryological development is characteristic feature of
  • A
    Mucor
  • B
    Plantae
  • C
    Animalia
    Correct
  • D
    Fungi
11
A plant that is partially heterotrophic is
  • A
    Orange
  • B
    Utricularias
  • C
    Guava
  • D
    Drosera
    Correct
12
Who demonstrated that the extract of the infected plants of tobacco could cause infection in healthy plants?
  • A
    W.M.Stanley
  • B
    D.J.Ivanowsky
  • C
    Pasteur
  • D
    M.W.Beijerinek
    Correct
13
The outer protein covering of virus is
  • A
    Virion
  • B
    Capsid
    Correct
  • C
    Viroid
  • D
    Coat
14
The genetic material of virus is
  • A
    Only RNA
  • B
    Both DNA and RNA
  • C
    Either DNA or RNA
    Correct
  • D
    Only DNA
15
Diener discovered
  • A
    Mycoplasm
  • B
    Lichens
  • C
    Viroids
    Correct
  • D
    Virus