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811.

All of the following are examples of long day plants, except
(a)Potato
(b)Lettuce
(c)Wheat
(d)Spinach
Comment
Answer is: A

812.

How many sets of members, arranged in successive whorls, does a typical flower show ?
(a)3
(b)4
(c)5
(d)6
Comment
Answer is: B

813.

Edible part of tomato is
(a)Fleshy thalamus
(b)Endocarp
(c)Whole fruit
(d)Mesocarp
Comment
Answer is: C

814.

All of the following statements about the role played by water in the growth of plants are true, except
(a)It serves as the medium for transport of inorganic salts
(b)It helps in the germination of seeds but does not provide turgidity to growing cells
(c)It is a solvent in which several substances are dissolved
(d)It participates as a reagent in many reactions
Comment
Answer is: B

815.

Xylem is a complex tissue, consisting of different types of cells. Which of the following perform the function of conduction of water and minerals ?
(a)Fibers
(b)Tracheary elements
(c)Parenchyma cells
(d)None of these
Comment
Answer is: B

816.

The edible portion of mango is
(a)Embryo
(b)Mesocarp
(c)Endosperm
(d)Endocarp
Comment
Answer is: B

817.

The rice grain is
(a)A seed
(b)Many seeded fruit
(c)Multiple seeded fruit
(d)One seeded fruit
Comment
Answer is: A

818.

The base sequence of the DNA molecules determines
(a)The height of plant
(b)The colour of a flower
(c)The amino acid sequence of protein
(d)None of these
Comment
Answer is: C

819.

In which of the following are plastids not present?
(a)Collenchyma
(b)Parenchyma
(c)Schlerenchyma
(d)Aernechyma
Comment
Answer is: C

820.

Bamboo is a
(a)Herb
(b)Shrub
(c)Tree
(d)Grass
Comment
Answer is: D

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