Question:
The type of leaf in Daucus carora is
The type of leaf in Daucus carora is
Updated On: Jun 14, 2022
- simple
- bipinnate
- tripinnate
- decompounds
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The Correct Option is D
Solution and Explanation
Daucus carota has decompound type of leaves. In this type, leaf rachis divides more than three times and give resi to small axis, in which leaflets are arranged. This type of leaves are also found in Parthenium, Coriander, Fennel. Simple leaf is a leaf having single or undivided lamina. The lamina can have various types of incisions, which may have to reach upto half, more than half or near the base or midrib, eg, Caster, Cannabis, Luffa etc.
In bipinnate leaf, the pinnate is divide twice pinnately. The leaflets called pinnules are borne on the secondary axis called rachillae or Rachules, eg. Acacia, Mimosa, Deloni, Albizzia. If the secondary axis produces tertiary axis, which bears the leaflets, the leaf is said to be tripinnate. The leaflet or pinnuls are borne on the tertiary axis. eg, Moringa and Melia.
In bipinnate leaf, the pinnate is divide twice pinnately. The leaflets called pinnules are borne on the secondary axis called rachillae or Rachules, eg. Acacia, Mimosa, Deloni, Albizzia. If the secondary axis produces tertiary axis, which bears the leaflets, the leaf is said to be tripinnate. The leaflet or pinnuls are borne on the tertiary axis. eg, Moringa and Melia.
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Concepts Used:
Leaf
A primary function of the leaf is to provide nourishment for a plant. Leaves get this by extracting water from the earth and carbon dioxide from the air with the help of sunshine.
Parts of a leaf
Following are the parts of a leaf:
- The top part of the leaf is the apex or tip that can be round, pointed, and smooth.
- On most leaves, the lamina, or leaf blade, is the broadest part of the leaf.
- A petiole is a leaf that links to the plant stem.
- Stipules, which are little green addendums near the base of the petiole, can also be seen on leaves.
- Most leaves have a midrib that branches out to initiate vascular tissue veins on the sides.
- Margin refers to the leaf's outer border, which varies depending on the plant type.
- At the bottom of the blade, the base is found; it can be flat, heart-shaped, and round.