WorksheetsUnit - 1 Diversity of Living World Part 1
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
Which of the following are found in extreme saline conditions?
a)
Archaebacteria
b)
Eubacteria
c)
Cyanobacteria
d)
Mycobacteria
2.
Select the mismatch
a)
Frankia - Alnus
b)
Rhodospirillum - Mycorrhiza
c)
Anabaena - Nitrogen fixer
d)
Rhizobium - Alfalfa
3.
Which among the following are the smallest living cells, known without a definite cell wall, pathogenic to plants as well as animals and can survive without oxygen?
a)
Bacillus
b)
Pseudomonas
c)
Mycoplasma
d)
Nostoc
4.
Read the following statements ( A to E ) and select the option with all correct statements
A. Mosses and Lichens are the first organisms to colonise a bare rock.
B. Selaginella is a homosporous pteridophyte.
C. Coralloid roots in Cycas have VAM.
D. Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic.
E. In gymnospermsmale and female gametophytes are present within sporangia located on sporophyte.
a)
B, C and E
b)
A, C and D
c)
B, C and D
d)
A, D and E
5.
An example of colonial alga is
a)
Chlorella
b)
Volvox
c)
Ulothrix
d)
Spirogyra
6.
Five kingdom system of classification suggested by R.H. Whittaker is not based on
a)
Presence or absence of a well defined nucleus
b)
Mode of reproduction
c)
Mode of nutrition
d)
Complexity of body organisation
7.
Mycorrhizae are the example of
a)
Fungitasis
b)
Antibiosis
c)
Amensalism
d)
Mutualism
8.
Which of the following shows coiled RNA strand and capsomeres?
a)
Polio virus
b)
Tobacco mosaic virus
c)
Measles viru
d)
Retrovirus
9.
Viroids differ from viruses in having
a)
DNA molecules with protein coat
b)
DNA molecules without protein coat
c)
RNA molecules with protein coat
d)
RNA molecules without protein coat
10.
Select the mismatch
a)
Pinus - Dioecious
b)
Cycas- Dioecious
c)
Salvinia - Heterosporous
d)
Equisetum - Homosporous
11.
Life cycle of Ectocarpus and Fucus respectively are
a)
Haplontic, Diplontic
b)
Diplontic, Haplodiplontic
c)
Haplodiplontic, Diplontic
d)
Haplodiplontic, Halplontic
12.
Zygote meiosis is characterisitic of
a)
Marchantia
b)
Fucus
c)
Funaria
d)
Chlamydomonas
13.
Which of the following is correctly matched for the product produced by them?
a)
Acetobacter acetic : Antibiotics
b)
Methanobacterium : Lactic acid
c)
Penicillium notatum : Acetic acid
d)
Saccharomyces cerevisiae : Ethanol
14.
Which of the following components provides sticky character to the bacterial cell?
a)
Cell wall
b)
Nuclear membrane
c)
Plasma membrane
d)
Glycocalyx
15.
Which of the following statements is wrong for viroids?
a)
They lack a protein coat
b)
They are smaller than viruses
c)
They causes infections
d)
Their RNA is a high molecular weight
100 %
