Ch 5+6 Biology Part 1 MCQs
1.
Unit of classification in
between class and family
a) Genus b)
Species c)
Order d)
Phylum
2.
The class of corn is
a)
Zea b)
Mays c)
Poaceae d) Monocotyledonae
3.
in 1866 Ernst Hackle
divided living organisms into
a)
Two kingdoms b)
Three kingdoms
c) Six kingdoms d)
Five kingdoms
4.
Which of the following mode
nutrition was used by Robert Whittaker for the classification
a)
Photosynthesis b) Absorption c) Ingestion d) All of
these
5.
Which scientist used
cytology genetics and organelles of symbiotic origin along with mode of
nutrition for classification
a)
Robert Whittekar b)
Margulis and Schwartz
c) Ernst Hackle d)
Carolous Linnaeus
6.
One of the following is
considered ancestor of all other
a)
Plantae b) Fungi
c) Protista
d)
Animalia
7.
Mature non enveloped virus
is composed of
a)
Genome only b)
Prion only c)
Genome and capsid
d) Nucleic acid + Protein coat + memberane of the host cell
8.
The structure of virus
which belongs to the host cell
a)
Envelope b) The capsid c) The genome d) All of these
9.
Prion is A / An
a)
Infections part of
virion b)
Infectious proteins only
c) A piece of RNA d)
A piece of DNA
10. The first virus to be isolated in crystal from by Stanley
a)
Bacteriophage b)
Cowpox virus
c) Tobaccomosaic virus d)
Polio virus
11. Tail fibers are attached to which one of the following component
of tail
a)
Sheath b) Core c) Collar
d)
End plate
12. The structure of virus injected by bacteriophage during lytic
cycle
a)
Tail fibers b) Tail
c)
Protein coat d) DNA
13. The process of separation of prophage to start Lytic cycle is
known as
a)
Adsoption b)
Lysogeny c)
Induction d)
Penetration
14. The statement not tru about lysogenic bacteria
a)
They can be attached by any
virus
b)
They have prophage and are
resistant to infection by the same virus
c)
Virus not related to
infection virus can attack
d)
Can not be attacked by
related virus 15. Polio virus is
|
a)
Rod shaded b) tadpole like c) Rick like d)
16. Disease caused by the smallest known virus
a)
Herpes simplex b)
Polio
c)
Mumps d)
Smallpox
17.
All of the following are
the characteristics or virus except
a)
Have both DNA and RNA
b)
Have no membrane bonded
organelle
c)
Cannot reproduce out side
living cell
d)
Gave no membrane to exit
entry of substances
18.
Out side the living cell
virus exist in the form known as
|
Spherical
|
|
a)
Viroid b)
Capsid c)
Virion d)
19. Reverse transcriptase is an enzyme contained
by
|
Prion
|
|
a)
All viruses b)
Retrovirus c)
Bacteriophage
|
d) Plant virus
|
20. Viruses are considered non living because
|
a) They produce variations
|
b) They form crystals
|
|
c) Their nucleis acid code for protein synthesis
|
d) They can reproduce
|
21. Which of the following are found in all virus
a)
Envelope, capsid and
nucleic acid b) DNA, RNA
and protein
c) Protein and nucleic acid
d)
Protein, nucleic acids
carbohydrates and lipids
22. Which one of the following is the only infections protein
a)
Viroid b)
Virion c)
Prion d) Envelop
23. Which of the following information transfer is catalyzed by an
enzyme reverse transcritpase
a)
RNA ----RNA b)
RNA ------ DNA
c) DNA-----RNA d)
DNA-------DNA
24. Which of the following is common in both bacteria and virus
a)
Nucleic acid as genetic
material b) Binary fision
c) Mitosis d)
Ribosomes
25. Which one of the following is not included in the envelope of
bacteria
a)
Cell wall b) Pilli
c)
Capsule d)
Slime
26. All of the followings are true about cysts of bacteria
except
a)
Heat resistant b)
Thick walled
c)
Desiccation Resistant d)
Formed during differentiation of
vegetative cells
27. The protoplast of bacterial cell lack which of the
following
|
a)
Nucleus b)
Ribosome c)
Plasmid
28. Substance used to kill microbes in
living tissues
|
d)
|
Mesosome
|
|
a)
Antiseptics b)
Disinfectants c) Antibiotics
29. Which of the following is sterilized by
membrane filters
|
d)
|
All of
these
|
|
a)
Sera b)
Antibiotics c)
hormones
30. One of the following is not used as
chemotherapeutic
|
d)
|
All of
these
|
|
a)
Alcohol b)
Sulfonamides c) Tetracycline d)
|
Penicillin
|
|
31. Microaerophlic bacteria can grow in
a)
In the absence of free
oxygen
b)
In the presence of free
oxygen
c)
In the absence or presence
of free oxygen
d)
In the presence of very low
concentration of oxygen
32. Coli is a / an
a)
Aerobic bacteria b)
Anaerobic bacteria
c) Facultative bacteria d)
Microaerophilic
33. Which of the following bacteria can grow in the presence of very
low concentration of oxygen
a)
Pseudomonas b)
Spirochete c)
Coli d) Campylobacter
34. Sulphur is produced as a by product during the activity of which
type of bacteria
a)
Photosynthetic b)
Chemosynthetic
c) Saprophytic d)
Parastic
35. During which phase of reproduction death rate becomes equal to
new formed bacteria
a)
Lag b) Log c)
Stationary d)
Decline
36. Rigid spiral bacteria is called
a)
Vibrio b)
Spirillum c)
Spirochete d) Sarcina
37. Hyphomicrobium is a bacteria shaped like
a)
Spiral b)
Rod c)
Sphere d)
Ladder
38. Gram positive or negative bacteria grouping is on the bases of
their
a)
Capsle b) Cyst c) Cell wall d) Cell
membrane
39. In which bacteria flagella are surrounding the whole bacterial
cell
a)
Atrichous b) Amphitrichous c)
Peritrichous d) Lophotrichous
40. The structure which is chemo taxis in bacteria
a)
Capsule b) Pilli
c)
Cyst d) Flagella
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