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801.

Some plants feed upon insects for their nitrogen requirements. They are called insectivorous plants. Which of the following is such a plant ?
(a)Hornwort
(b)Bladderwort
(c)Spiderwort
(d)Liverwort
Comment
Answer is: B

802.

The Red Sea derives its name from the
(a)Red bloom caused by a red alga
(b)Red coloured effluents deposited in it
(c)Profuse growth of a red flowered plant
(d)Red bloom caused by a blue-green alga
Comment
Answer is: D

803.

Which country is called the sugar bowl of the world ?
(a)India
(b)Argentina
(c)Cuba
(d)USA
Comment
Answer is: C

804.

In which of the following are Mitochondria absent ?
(a)Fungi
(b)Green algae
(c)Blue-green algae
(d)Angiosperms
Comment
Answer is: C

805.

Which of the following are procaryotic plants ?
(a)Blue-green algae
(b)Green algae
(c)Sea weeds
(d)Diatoms
Comment
Answer is: A

806.

Eucaryotic organisms are those that contain
(a)DNA threads
(b)True nucleus
(c)Vacuoles
(d)Plastids
Comment
Answer is: B

807.

With which of the following is Azotobacter associated ?
(a)Nitrogen fixation
(b)Carbon fixation
(c)Root nodules
(d)Fermentation
Comment
Answer is: A

808.

The merismatic cells are
(a)Thin walled
(b)Richly protoplasmic
(c)Isodiametric
(d)All of these
Comment
Answer is: D

809.

Which of the following micro nutrients plays an important role in the nitrogen metabolism of plants, especially in the reduction of nitrate ?
(a)Copper
(b)Molybdenum
(c)Zinc
(d)Boron
Comment
Answer is: B

810.

Plant development is influenced by
(a)Quality and quantity of light
(b)Quality of light only
(c)Quality, quantity and duration of light
(d)Quality and duration of light
Comment
Answer is: C

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