Aerial Stem Modifications

Q.

In which plant does stem perform photosynthesis?

Q. Leaves become modified into spines in

1. onion
2. silk cotton
3. opuntia
4. pea

Q. Aerial stem modifications

1. Provide protection and climbing
2. Help in photosynthesis
3. Help in vegetative propagation
4. Only A and B

Q.

Is carrot a non-flowering plant?

Q. In Ruscus, the stem modification is called

1. phylloclade
2. phyllode
3. sucker
4. cladode

Q. Choose the correct options.

A.	Bulb	Aerial	Onion
B.	Bulbil	Aerial	Agave
C.	Offset	Underground	Water Hyacinth
D.	Rhizome	Underground	Ginger

1. A, B and D
2. B and D
3. A, B and C
4. A, C and D

Q.

Which of the following is a rootless aquatic plant in which a portion of the leaf forms a tiny sac for trapping insects?

1. Utricularia

2. Drosera

3. Nepenthes

4. Dionaea

Q. Banana and ginger are:

1. Rhizome
2. Tuber
3. Bulb
4. Corm

Q. A stem with a jointed stem is called a culm. It has distinct nodes and internodes. It is a characteristic of

1. palms
2. bamboo
3. Pinus
4. All correct

Q.

Match the following columns:
$\begin{array}{cc}ColumnI& ColumnII\\ A.Opuntia& 1.Stemthorns\\ B.Asparagus& 2.Phylloclades\\ C.Citrus& 3.Cladodes\end{array}$

1. A-1, B-2, C-3

2. A-2, B-3, C-1

3. A-3, B-2, C-1

4. A-2, B-1, C-3

Q.

In dioecious plants, male and female flowers grow on the same plant.

1. True
2. False

Q. Green leaf-like one internode long stem/branches are called

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

Q. Leaves become modified into spines in

1. onion
2. silk cotton
3. opuntia
4. pea

Q.

Stems modified into flat green organs performing the functions of leaves are known as :

1. Phyllodes

2. Cladodes

3. Phylloclades

4. Scales

Q. What is lamina or leaf blade? What are its functions?

Q.

Phyllode is present in

1. Asparagus

2. Australian Acacia

3. Opuntia

4. Euphorbia

Q.

Match the following columns:
$\begin{array}{cc}ColumnI& ColumnII\\ A.Opuntia& 1.Stemthorns\\ B.Asparagus& 2.Phylloclades\\ C.Citrus& 3.Cladodes\end{array}$

1. A-1, B-2, C-3

2. A-2, B-3, C-1

3. A-3, B-2, C-1

4. A-2, B-1, C-3

Q. Thorns differ from prickles in having :

1. Endogenous origin
2. Bark
3. All of the above
4. Vascular supply

Q. Metamerism is the characteristic of

1. Ascaris
2. Pheretima
3. Periplaneta
4. Hydra

Q. Green leaf-like one internode long stem branches are called as

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

Q. In Ruscus, the stem modification is called

1. phylloclade
2. cladode
3. phyllode
4. sucker

Q. Which of these is not true about bulbils?

1. Found in onion

2. Specialized buds

3. Store food

4. Underground

Q. Which of the following is not a stem modification?

1. Pitcher of Nepenthes
2. Thorns of citrus
3. Tendrils of cucumber
4. Flattened structures of Opuntia

Q. Which of these is not true about bulbils?

1. Found in onion

2. Specialized buds

3. Store food

4. Underground

Q. Cladode is

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

Q. All of the following parts of the plant is present in pitcher plant except.

1. Leaves
2. Roots
3. Stem
4. Seeds

Q.

what is the meaning of dichotomous & ligulate & monopodial ?

Q. Cladodes occur in

1. Opuntia
2. Asparagus
3. Parkinsonia
4. Euphorbia royleana

Q. Why pitcher plant and opuntia are Homologus?

Q. Angle of divergence in tristichous phyllotaxy is

1. ${140}^o$
2. ${135}^o$
3. ${120}^o$
4. ${180}^o$