B.Sc. I (Semester (CBCS) Examination, 2017
BIOTECHNOLOGY
Ecology and Microbiology
Paper I Ecology
Day and Date Wednesday, 1-11-2017 Total Marks 70
Time 10.30 a.m. to 1.00 p.m.
1. Rewrite the sentences using correct alternatives given below 14
The multilayered gaseous envelope surrounding the planet earth is called
Biosphere Lithosphere Hydrosphere Atmosphere
ii) Ozonosphere situated in zone.
Stratosphere Troposphere Mesosphere Ionosphere
iii) Upper region of the troposphere has a narrow boundary called the
which has constant region
Stratopause Tropopause Mesopause Mesosphere
iv) Plants growing in abundant water are called as
Mesophytes Hydrophytes Xerophytes Halophytes
Ecology deals with study of
Living things
Non living things
Interaction of living and non living things
Environment
vi) In an ecosystem shows one way passage.
Nitrogen Carbon Potassium Free energy
vii) of the following is primary consumer.
Producer Top carnivore Carnivore Herbivore
viii) The ecological succession begins from the primitive substratum called as
succession.
Primary Secondary Autogenic Heterotrophic
ix) Crop plant ecosystem is type of ecosystem.
Natural Artificial Marine Limnic
is type of In situ conservation.
Zoo Nurseries Forest Laboratories
xi) is a type of sedimentary cycle.
Hydrological Carbon Oxygen Sulphur
P.T.O.
Set P
Set P
SLR-SX 2
xii) Organisms feed on dead and detritus matters are called as
Autotrophes Heterotrophes Saprophytes Phytoplankton
xiii) The term ecology was coined by
E.P. Odum A.G. Tansley Charles elton Juday
xiv) The term biodiversity was coined by
Walter G. Rosen Cox and Atkins
McNaughton and Wolf Funk and Wagnales
2. Define and explain any seven of the given below 14
Ecosystem
ii) Hydrosphere
iii) Decomposition
iv) Producer
Biogeochemical cycle
vi) Endemic species
vii) Net productivity
viii) Biodiversity
ix) Estuarine.
3. Answer any two of the given below 10
Write a short note on lithosphere.
ii) Explain energy transfer in ecosystem.
iii) Explain about Chipko Andolan.
Explain in detail functions of ecosystem. 4
4. Answer any two of the given below 14
Give a detailed account on Biosphere.
ii) Explain in brief ecological succession with types.
iii) Explain different conservation methods.
5. Answer any two of the given below 14
Explain forest as natural resources with its conservation and management.
ii) Write a note on aquatic ecosystem.
iii) Explain in detail sedimentary cycle and its importance.