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Plant Anatomy - 2 (Class XI/XII)

Questions covering plant anatomy including leaf types (dorsiventral/isobilateral), vascular tissue, cambium, guard cells, wood structure, and plant cells

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Bulliform cells are located in

  1. dorsiventral leaf
  2. isobilateral leaf
  3. phyllode
  4. roots of grasses
Question 2 Multiple Choice (Single Answer)

Which of the following statements about upper epidermis of a dorsiventral leaf is false?

  1. It is cutinised.
  2. It lacks stomata.
  3. It contains chlorophyll.
  4. It is made up of parenchymatous cells.
Question 3 Multiple Choice (Single Answer)

Where is stomata located in an isobilateral leaf?

  1. At upper epidermis
  2. At lower epidermis
  3. Both the epidermal layers
  4. No stomata is present in an isobilateral leaf.
Question 4 Multiple Choice (Single Answer)

Which of the following sentences about a dorsiventral leaf is true?

  1. Both the surfaces of a leaf are equally green.
  2. The upper surface is dark, while the lower surface is light green.
  3. Stomata are equally distributed on both sides.
  4. Mesophyll is undifferentiated.
Question 5 Multiple Choice (Single Answer)

Which type of cells make the bundle sheath extension in a dorsiventral leaf?

  1. Sclerenchyma
  2. Parenchyma
  3. Collenchyma
  4. Chlorenchyma
Question 6 Multiple Choice (Single Answer)

Cambium ring in vascular bundles is formed by

  1. cork cambium
  2. intrafascicular cambium
  3. interfascicular cambium
  4. intra- and inter-fascicular cambium
Question 7 Multiple Choice (Single Answer)

Dumb-bell-shaped guard cells are found in a

  1. pea leaf
  2. sunflower leaf
  3. maize leaf
  4. mango leaf
Question 8 Multiple Choice (Single Answer)

Which of the following sentences about a pea leaf is/are true?

  1. Protoxylem is indistinguishable.
  2. Stomata have kidney-shaped guard cells.
  3. Bundle sheath is formed of colourless cells.
  4. All of the above
Question 9 Multiple Choice (Single Answer)

Which of the following statements pertaining to plant structure is incorrect?

  1. Cork lacks stomata, but lenticels carry out transpiration.
  2. The bulliform cells cause rolling of leaves in water-starved conditions.
  3. Casparian strip prevents water and minerals from passively seeping between cells.
  4. Pith is less developed and made of parenchymatous cells in dicots.
Question 10 Multiple Choice (Single Answer)

The secondary structure of wood formed during autumn season is called

  1. early wood
  2. late wood
  3. heart wood
  4. sap wood
Question 11 Multiple Choice (Single Answer)

In a leaf, where does food production take place?

  1. Spongy mesophyll
  2. Pallisade mesophyll
  3. Bundle sheath
  4. Substomatal cavity
Question 12 Multiple Choice (Single Answer)

Which of the following take(s) part in the storage of food?

  1. Phellem
  2. Phellogen
  3. Durman
  4. Tylosids
Question 13 Multiple Choice (Single Answer)

Sentence A: Heartwood is stronger and more durable than sapwood.
Sentence B: Gums, oils, resins and tannins provides colour to heartwood.

With regard to the above sentences, which of the following options is correct?

  1. A and B both sentences are correct.
  2. A is correct and B is the correct explanation of A.
  3. A is correct, but B is not correct.
  4. A and B both are incorrect.
Question 14 Multiple Choice (Single Answer)

Which of the following plants has dorsiventral leaves?

  1. Maize
  2. Wheat
  3. Pea
  4. Rice
Question 15 Multiple Choice (Single Answer)

In which of the following shapes does trachea appear in transverse section?

  1. Pentagonal
  2. Isodiametric
  3. Cylindrical
  4. Hexagonal
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