Phylloclade

Q.

The cactus stems are modified into:

1. Phyllodes

2. Phylloclades

3. Cladodes

4. Thorns

Q. Both the main stem and the branches are modified into flat green organs performing the functions of leaves are known as:

1. Cladodes
2. Phyllodes
3. Phylloclades
4. Scales

Q. Read the following statements given below.
1. A fleshy vegetative bud is called bulbil.
2. Multiple root cap is found in screw pine.
3. Root cap is absent in hydrophytes.
4. Phylloclade is found in Opuntia.

How many statements are correct?

1. All are correct statements except 2
2. All are correct statements
3. Only 1 and 2 are correct
4. Only 2 and 3 are correct

Q.

Differentiate between coleorhiza and coleoptile.

Q. Match the stem modifications in column I with their appropriate examples in column II:

Column I	Column II
A. Underground stem	I. Euphorbia
B. Stem tendril	II. Opuntia
C. Stem thorn	III. Potato
D. Flattened stem	IV. Citrus
E. Fleshy cylindrical stem	V. Cucumber

1. A-I, B-II, C-III, D-V, E-IV
2. A-II, B-III, C-IV, D-V, E-I
3. A-III, B-IV, C-V, D I, E-II
4. A-III, B-V, C-IV, D-II, E-I

Q. The plant of arid regions with flat green stem carrying out photosynthesis is ______.

1. Euphorbia
2. Opuntia
3. Colocasia
4. Bougainvillea

Q.

Study the following table
$\begin{array}{ccccc}& Plant& Modifiedpart& Nameofmodification& Purpose\\ 1.& Pistia& Stem& Offset& Reproduction\\ 2.& Pea& Stem& Tendril& Climbing\\ 3.& Opuntia& Leaf& Phyllode& Photosynthesis\\ 4.& Bougainvllea& Leaf& Spine& Protection\end{array}$
Which of the above show the correct combination?

1. 1 and 2

2. 3 and 4

3. 1 only

4. 1, 2, 3 and 4

Q. Modification of stem into leaf-like cladode is observed in some

1. Xerophytes
2. Hydrophytes
3. Halophytes
4. Heliophytes

Q. The difference between phylloclade and cladode is:

1. Cladode is the modification of entire stem but phylloclade is the modification of only single internode of stem
2. Phylloclade is the modification of entire stem but cladode is the modification of only single internode of stem
3. Cladode is found in Casuarina
4. Phylloclade is found in Asparagus