Tag: plant adaptation and modification

Quizzes (0) Questions (62)

Questions Related to plant adaptation and modification

Multiple choice evs roots and leaves plant adaptation and modification leaves leaf modification root, stem, and leaves

In Duranta, axillary buds and in Carrisa the apical bud is modified into stem thorns, what is correct for Ulex? It has 

  1. Leaf tendrils and stem spines

  2. Leaf spines

  3. Stem thorns

  4. Both stem thorns as well as leaf spines
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In Duranta, axillary buds and in Carrisa the apical bud is modified into stem thorns, for ulex both stem thorns as well as leaf spines are modified.
Hence, option D is correct.

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

The primary function of leaf is ________.

  1. Growth

  2. Reproduction

  3. Photosynthesis

  4. Protection
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Leaves are those parts of plants that perform the primary function of photosynthesis and transpiration. Growth, Reproduction and Protection are it's secondary or modified functions.

So, the correct option is 'Photosynthesis'.

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

Which of the following are called food factories of the plants?

  1. Leaves

  2. Stem

  3. Roots

  4. Flowers
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
The part of the plant which produces food is a leaf. Leaves prepare food in presence of sunlight by a process called photosynthesis. In this process, food is produced by utilizing water and carbon dioxide in the presence of sunlight. Therefore, leaves are called food factories of the plants.
So, the answer is A.
Multiple choice evs roots and leaves leaves root, stem, and leaves basics of roots and stem plant adaptation and modification

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

  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
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pedicel is the stalk of a flower (a-ii), Peduncle is the inflorescence axis (b-iv), Bract is a reduced leaf (c-i), and Petiole is the stalk of a leaf (d-iii).

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

Which of the following part of the plant performs photosynthesis?

  1. Leaves

  2. Stem

  3. Roots

  4. Root nodules
Reveal answer Fill a bubble to check yourself
A Correct answer
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'.

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

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

  1. Midrib

  2. Stomata

  3. Veins

  4. Petiole
Reveal answer Fill a bubble to check yourself
B Correct answer
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'