Leaf Modifications

Q. Complete leaf is modified into spine in

1. Citrus
2. Aloe
3. cactus
4. Gloriosa

Q.

Find the incorrect statement.

1. Root hair are unicellular elongations.

2. Trichomes are multicellular elongations.

3. Trichomes are unicellular elongations.

4. Root hair absorb water and minerals.

Q.

Name the modification of a leaf in an onion.

Q.

The waxy material deposited in the casparian strip of the endosperm is

1. Cellulose

2. Lignin

3. Hemicellulose

4. Pectin

5. Suberin

Q. Fleshy layers of an onion are modified stem to store food produced by the leaves.

1. True
2. False

Q.

Classify leaves on the basis of margin.

Q.

Is tulsi a compound leaf?

Q.

Thick and woody climbers are called as:

1. Suckers

2. Climbers

3. Lianas

4. Creepers

Q.

___ (simple leaf/compound leaf) is found in mango.

Q.

How is xylem in primitive angiosperm differ from the ones in the advanced angiosperms?

1. Tracheids are absent in xylems of advanced angiosperms

2. Tracheids are restricted to leaf margin in advanced angiosperms

3. Tracheids transport the major amount of water in advanced angiosperms

4. Tracheids transport the major amount of water in primitive angiosperms

Q.

All the leaves have petioles. Do you agree?

Q. Attaching structures of sea lily are known as

1. Cirri
2. Tentacles
3. Holdfasts
4. Rhizines

Q.

How do the various leaf modifications help plants?

Q. Tendrils in pea are modified ______.

1. axillary buds
2. terminal buds
3. leaves
4. lateral buds

Q. The male cone of pinus is modified as

1. Dwarf shoot
2. Long shoot
3. Needle leaves
4. None of the above

Q. Integuments develop into______.

1. cotyledons
2. scutellum
3. pericarp
4. seed coat

Q. The common modification seen both in stems and leaves is presence of

1. tendrils
2. spines
3. thorns
4. phylloclade

Q. How do the various leaf modifications help plants?

Q. Why is the leaf of bombax categorized as palmately compound leaf and multifoliate leaf

Q. In $Euphorbia$

1. Stem modifies into flattened phylloclade
2. Stem modifies into cylindrical phylloclade
3. Stem modifies into cladode
4. Stem modifies into stolons

Q. Axillary buds get modified into

1. thorns
2. tendrils
3. spines
4. both a and b