Tag: basics of roots and stem

Questions Related to basics of roots and stem

Match the column I with column II and select correct option.

Column-I Column-II
(a) Pedicel i Reduced leaf
(b) Peduncle ii Stalk of the flower
(c) Bract iii Stalk of the leaf
(d) Petiole iv Inflorescence axis
evs roots and leaves leaves root, stem, and leaves basics of roots and stem plant adaptation and modification

  1. a-ii, b-iv, c-i, d-iii

  2. a-iii, b-iv, c-i, d-ii

  3. a-i, b-iii, c-iv, d-ii

  4. a-iv, b-i, c-ii, d-iii

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Correct Option: A

Which of the following part of the plant performs photosynthesis?

evs roots and leaves leaves root, stem, and leaves basics of roots and stem plant adaptation and modification

  1. Leaves

  2. Stem

  3. Roots

  4. Root nodules

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Correct Option: A
Explanation:

The plant is morphologically divided into roots, stem and leaves.

  1. Root that forms from the radicle of the embryo and is positively geotropic helps in the absorption of water and mineral from the soil.
  2. The stem that forms from the plumule of the embryo and holds various different part of the plant is positively phototrophic and provide mechanical support to stem.
  3. Leaves that originate from the stem and have a green coloured pigment called chlorophyll is the kitchen of plant and helps to convert the inorganic substance into organic substance.
  4. Root nodules are present in legume plants for the nitrogen fixation.
So, the correct answer is 'Leaves'.

Epiphyllous buds develop from

evs roots and leaves leaves root, stem, and leaves basics of roots and stem plant adaptation and modification

  1. Leaf surface

  2. Leaf axil

  3. Leaf base

  4. Stipule

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Correct Option: A

Which part of the leaf is useful for exchanging gases between the plant and the atmosphere?

evs roots and leaves leaves root, stem, and leaves basics of roots and stem plant adaptation and modification

  1. Midrib

  2. Stomata

  3. Veins

  4. Petiole

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Correct Option: B
Explanation:

A)The midrib is the large strong the central vein in the middle of the leaf.
B)Stomata are the part of leaf present on the epidermis and help in the gaseous change.
C)Veins are the vascular tissue of leaf located at the mesophyll part.
D)The petiole is the part of a leaf that joins the lamina to the base.
So the correct option is 'Stomata'

Which one of these is not a part of a leaf?

evs roots and leaves leaves root, stem, and leaves basics of roots and stem plant adaptation and modification

  1. Midrib

  2. Lamina

  3. Leaf Base

  4. Stamen

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Correct Option: D
Explanation:

A) The midrib is the large strong central vein in the middle of the leaf.
B) The lamina is the broad green part of the leaf in which photosynthesis takes place.
C) Leaf base is the lowermost part of the leaf from where it attaches to stem or branch.
D) Stamen is the male reproductive part present on a flower.
So the correct option is 'Stamen'.