Tag: basics of roots and stem

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Multiple choice biology types and parts of plants leaves root, stem, and leaves basics of roots and stem

The stem was cut and dipped in water and red ink and colour of the leaves became red due to 

  1. The absorption of red ink by the leaves from the water

  2. The conduction of water and ink by the stem

  3. The loss of green colour from the leaves

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This experiment is done to check the movement of water in stem in which ink is mixed with water and the stem is left in the mixture and after an hour we observe the stem and it shows that the ink is present inside the stem shows that the stem conducted the water and the ink, as well as the colored ink patches, are observing it proves that  the xylem and its elements help stem to conduct the water.

So the correct option is 'The conduction of water and ink by the stem'

Multiple choice biology types and parts of plants leaves root, stem, and leaves basics of roots and stem

Which is not a characteristic feature of the stem?

  1. Arises from plumule and is ascending

  2. Growing apex is having a bud

  3. Hairs are multicellular

  4. Branches arise endogenously
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Stems typically arise from the plumule, are ascending, have buds at their growing apices, and often feature multicellular hairs (trichomes). However, lateral branches on stems arise exogenously from outer cortical or epidermal tissues, not endogenously.

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.