Tag: basics of roots and stem

Questions Related to 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 

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

  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

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Correct Option: B
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'

Axillary buds develop

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

  1. Endogenously from plerome

  2. Endogenously from pericycle

  3. Exogenously from outer cortex

  4. Exogenously from epidermis

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Correct Option: C
Explanation:
Axillary buds develop from the outside, that is exogenously from outer layers of the cortex.
So, the correct answer is 'Exogenously from outer cortex'

Which is not a characteristic feature of the stem?

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

  1. Arises from plumule and is ascending

  2. Growing apex is having a bud

  3. Hairs are multicellular

  4. Branches arise endogenously

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Correct Option: A

Primary phloem, secondary phloem, internal phloem and included phloem, occur in the stem of ______________.

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

  1. Salvadora

  2. Leptadenia

  3. Aristolochia

  4. Nyctanthes

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Correct Option: A

Ginger is

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

  1. Stem

  2. Root

  3. Fruit

  4. Bulb

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Correct Option: A

Hardest leaves are found in?

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

  1. Victoria regia

  2. Rafflesia

  3. Raphia vinifera

  4. Metasequoia

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Correct Option: A

The primary function of leaf is ________.

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

  1. Growth

  2. Reproduction

  3. Photosynthesis

  4. Protection

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Correct Option: C
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'.

The petiole is also known as _________.

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

  1. Peduncle

  2. Hypopodium

  3. Mesopodium

  4. Epipodium

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Correct Option: C
Explanation:
The petiole also called the mesopodium is a cylindrical or sub-cylindrical smooth or grooved stalk of the leaf which lifts the lamina above the level of the stem. 
So, the correct option is 'Mesopodium'.

________ is taken as leaf cutting in Peperomia.

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

  1. Only Leaf petiole

  2. Part of the leaf

  3. Entire leaf including petiole

  4. Leaf blade

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Correct Option: C

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

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. Flowers

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Correct Option: A
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.