Phylloclade

Q.

What is meant by organs of perennation?

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

Q. Cladode is

1. one internode long modified stem capable of photosynthesis
2. a specialized reproductive shoot
3. a perennial fleshy underground stem
4. flattened green stem of unlimited growth

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. In succulent plants like Opuntia , the RQ value will be

1. More than 1
2. Infinity
3. Zero
4. Less than 1

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

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

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

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

Q. Eichhornia is the example of

1. stolon
2. sucker
3. offset
4. runner

Q. Choose the option with correct identification of A, B, C, D and E given below:

1. A - Tuber, B - Rhizome, C - Eyes, D - Leaf Bud, E - Offset
2. A - Offset, B - Eyes, C - Leaf Bud, D - Stolon, E - Sucker
3. A - Offset, B - Leaf Buds, C - Eyes, D - Stolen, E - Sucker
4. A - Tuber, B - Rhizome, C - Bulbil, D - Leaf Buds, E - Offset

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

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

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. 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. Which of the following parts are used for reproduction in Pistia?

1. Runner
2. Offsets
3. Suckers
4. Stolen

Q. Phyllode is present in _____.

1. Asparagus
2. Euphorbia
3. Australian Acacia
4. Opuntia

Q. _______ is a modified stem which is green, flat, fleshy and the leaves are modified into spines.

1. Cladode
2. Phylloclade
3. Phyllode
4. Bulbils

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

Q.

Cylindrical phylloclades are found in

1. Opuntia
2. Euphorbia
3. Cactus
4. All of these

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

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

Q. Read the following statements about adaptations in desert plants and select the correct ones.
(i) They have a thick cuticle on their leaf surface
(ii) They have stomata present in deep sunken pits.
(iii) They use CAM pathway for photosynthesis.
(iv) They have flattened stems and large sized leaves.
(v) Their stomata remain closed during the day.

1. (i), (ii) and (iii)
2. (i), (ii) and (iv)
3. (ii), (iii) and (v)
4. (i), (ii), (iii) and (v)

Q. Following are the comparisons between phylloclades and cladodes (cladophylls).

	Phylloclade	Cladode
(i)	Both main stem and branches are modified to function like leaves.	Only the branches are modified to take over the function of leaves.
(ii)	Phylloclade has limited or definite growth.	Cladode has unlimited or indefinite growth.
(iii)	It consist of several nodes and internodes.	It is usually one internode long
(iv)	True leaves are commonly caducous.	True leaves are either reduced to scales or modified to spines.
(v)	Example: Rescus aculeatus, Asparagus etc.	Example: Opuntia, Euphorbia royleana etc.

Pick up the wrong difference and select the correct option.

1. (i) and (ii)
2. (ii) and (v)
3. (iii) and (v)
4. (ii) and (iv)

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 only

2. 1, 2, 3 and 4

3. 3 and 4

4. 1 and 2

Q. Match Column-I with Column-II and select the correct option from the codes given below:

Column-I	Column-II
A. Thorns	I. Vegetative propagation
B. Phylloclades	II. Defensive mechanism
C. Runners	III. Mechanical support
D. Stilt roots	IV. Absorption of nutrition
E. Haustoria	V. Photosynthesis

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

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. Consider the following statements.
a. Bamboos produce new plants vegetatively through their rhizomes.
b. Strawberries can reproduce asexually by runners.
Which of the statements given is/are correct?

1. $1$ only
2. $2$ only
3. Both $1$ and $2$
4. Neither $1$ nor $2$

Q. Phylloclade and cladode is found in

1. Ruscus
2. Opuntia
3. Strawberry
4. Chrysanthemum
5. C and D

Q. Phyllode is present in _____.

1. Asparagus
2. Euphorbia
3. Australian Acacia
4. Opuntia

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.

Cylindrical phylloclades are found in

1. Cactus
2. All of these
3. Opuntia
4. Euphorbia

Q. In Dianthus, placentation is :-

1. Basel
2. Free central
3. Axile
4. Marginal

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