Leaf

IMPORTANT

Leaf: Overview

This Topic covers sub-topics such as Leaf, Parts of Leaf, Reticulate Venation, Petiole, Parallel Venation, Lamina, Simple Leaf, Phyllotaxy, Axillary Bud, Compound Leaf, Stipules, Leaf Base, Pulvinus Leaf Base and, Modifications of Leaves

Important Questions on Leaf

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In Opuntia, spines are modification of:

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All of the following are the parts of leaf except:

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Select the set of plants having similar phyllotaxy?

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Identify A to E in the following figure.

 Question Image

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In pitcher plant, pitcher is modified into:

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The following possess alternate phyllotaxy except:

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Select the correct matching.

Column I Column II Column III
A. Alternate X. Single leaf arises at each node. 1. China rose, mustard, sunflower.
B. Whorled Y. More than 2 leaf arises at node. 2. Alstonia
C. Opposite Z. Pair of leaf arises at node. 3. Calotropis and guava.

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Find out the correct matching from the following.

(A) Palmately compound leaves - Leaflet attached to common axis rachis.

(B) Phyllotaxy - Pattern of leaf arrangement on stem or branch.

(C) Pinnately compound leaves - Leaflet attached to a common point, i.e., at the tip of petiole.

(D) Venation - Arrangement of veins and veinlets in the lamina of leaf.

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Which of the following is correct about venation?

(A) Parallel venation is generally found in monocot.

(B) Parallel venation is generally found in dicot.

(C) Reticulate venation is generally found in monocot.

(D) Reticulate venation is generally found in dicot.

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The arrangement of arteries and arterioles in the lamina of leaf is termed as

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Long thin _____ petiole allow lea blade to flutter in wind, thereby cooling of the leaf and bringing _____ air to leaf surfaces.

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Typical leaf consists of

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Which of the following is not a stem modification?

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Leaf tendril is found in

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Pitcher plant is

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Drosera and Sarracenia are

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Assertion : Citrus is a palmate compound leaf.
Reason : Citrus has single functional leaflet.

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Assertion : Phyllotaxy deals with morphology of leaves.
Reason : Foliage denotes all leaves of a plant.

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In Gloriosa (Glory lily) the tendril is formed from

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A monocot showing reticulate venation is

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Venation is a term used to describe the pattern of arrangement of