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Main Concepts of Life Science

1. 

Consider the following statements:
I. The DNA controlls all the activities of the cell
II. It transfers the hereditary characters from one generation to the next
III. It controls protein synthesis
IV. It produces RNA

A. I alone is correct B. I and II are correct C. I,II and III are correct D. All the above

Answer : D. All the above

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2. 

Autotrophs in an ecosysytem are called

A. Producers B. Consumers C. Decomposers D. Aboitic constituents

Answer : A. Producers

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3. 

An ecosystem has two components, namely

A. Weeds and trees B. Biotic and abiotic C. Frogs and man D. Plants and animals

Answer : B. Biotic and abiotic

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4. 

Match the following using the codes given below

List I List II
a) Fungus 1) Physiology
b) Classification 2) Taxonomy
c) Shape and Structure 3) Mycology
d) Functional Movements 4) Morphology

A. a-2,b- 4,c- 1,d- 3 B. a-3,b- 4,c- 2,d- 1 C. a-2,b- 1,c- 4,d- 3 D. a-3,b- 2,c- 4,d- 1

Answer : D. a-3,b- 2,c- 4,d- 1

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5. 

Founder of Binomial nomenclature is

A. Bentham and Hooker B. Cronquist C. Linnaeus D. Tippo

Answer : C. Linnaeus

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6. 

1. Match List I correctly with List II and select your answer using the codes given below:

List I List II
a) Virus 1) Robert Hooke
b) Bacteria 2) Robert Brown
c) Nucleus 3) Dimitry Ivanowsky
d) Cell 4) Leeuwenhoek

A. a-3,b- 2,c- 1,d- 4 B. a-3,b- 4,c- 2,d- 1 C. a-1,b- 2,c- 3,d- 4 D. a-2,b- 3,c- 4,d- 1

Answer : B. a-3,b- 4,c- 2,d- 1

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