Multiple Choice Questions

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Which is present in monocot flowers?

  • Sepals

  • Petals

  • Tepals

  • None of these


C.

Tepals

Tepals are individual parianth segments. The parianth is collective name as undifferentiated sepals and petals. These are found in monocot flowers. The parianth segment of Gramineae are called lodicules.


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Quiescent centre is found in root apex and acts as

  • permanent source of active initiates

  • reservoir of resistant cells

  • reservoir of passive cells to form new root apex if root apex is damaged/ killed

  • all of the above


Which type of meristems allow the fallen stems of cereals/ grasses to become erect?

  • Apical meristem

  • Lateral meristem

  • Intercalary meristem

  • Secondary meristem


An open collateral bundle is one in which :

  • xylem and phloem are seprated by cambium;

  • xylem and phloem lie side by side

  • cambium occurs on the out side of bundle

  • cambium does not occur in the bundle


Cook cambium and vascular cambium are :

  • parts of secondary xylem and phloem

  • parts of pericycle

  • lateral meristems

  • apical meristems


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Phytotron is :

  • a controlled condition chamber for tissue

  • leaf culture process

  • special culture of plants

  • root culture process


P-proteins belong to :

  • xylem parenchyma

  • trichomes

  • sieve tube elements

  • tracheids and vessels


Largest number of chloroplast is found in :

  • palisade tissue

  • spongy tissue

  • transfusion tissue

  • bundle sheath cells


Growth rings are formed due to activity of :

  • extrastelar cambium

  • intrastelar cambium

  • interstelar cambium

  • both 'b' and 'c'


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Passage cells are found in

  • dicot stem

  • monocot root

  • monocot stem

  • all of these


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