Time Allowed: Three
Hours Maximum Marks: 200
Candidates should attempt Questions 1 to 5 which are
compulsory, and any THREE of the remaining questions, selecting at least ONE
question from each Section.
SECTION A
1.
Answer any FOUR of the following in about 150
words each:
(a)
Enumerate the methods of preservation of fruits
and vegetables.
(b)
Write on the technique of preparation of
pineapple squash.
(c)
What are phytohormones? How are they used in
plant propagation and breaking dormancy?
(d)
What is a polyhouse? What are the benefits of
polyhouses?
(e)
List out commonly grown jasmine varieties and
their methods propagation.
2.
Answer the following in about 150 words each:
(a)
Distinguish between auxins and gibberellins.
(b)
Discuss on the psychological effects of
Gibberellins.
(c)
What factors affect the rate of respiration in
plants?
(d)
How do aerobic the rate of respiration in
plants?
3.
Answer the following in about 150 words each:
(a)
What are cell organelles? Describe the structure
and functions of Mitochondria and Golgi bodies.
(b)
What are ergastic substances? Write a note on
them.
(c)
How ribosomes differ from microsomes?
(d)
Define chromosomal aberration. List out
different types of chromosomal aberrations.
4.
Write short notes on:
(a)
Diseases and leaf hoppers by soil
(b)
Plant and leaf hoppers as vectors
(c)
Management of vector borne diseases
(d)
Saw-toothed grain beetle.
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