Phyllotaxy

Q.

Each plant has different arrangement of leaves on the stem. This is called as __.

Q.

Which of these options is correct about the leaves at each node in Alstonia?

1. Each node has one leaf

2. Each node has two leaves

3. Each node has more than two leaves

4. All options possible

Q.

In the following question, a statement of assertion is followed by a statement of reason. Mark the correct choice.
Assertion: In opposite phyllotaxy, two leaves are borne on the opposite sides of a single node.
Reason: Opposite phyllotaxy is seen in China rose and Oleander.

1. If assertion is true but reason is false

2. If both assertion and reason are true and reason is the correct explanation of assertion

3. If both assertion and reason are true but reason is not the correct explanation

4. If both assertion and reason are false

Q.

The arrangement of leaves on branches:

1. Inflorescence

2. Vernation

3. Venation

4. Phyllotaxy

Q. The pattern of arrangement of leaves on a stem is called .

1. venation
2. whorls
3. phyllotaxy
4. placentation

Q. While describing a plant, what does the term alternate refer to?

1. Arrangement of veins in the lamina
2. Arrangement of leaves on the stem
3. Arrangement of calyx and the corolla in floral buds
4. None of these

Q. The type of phyllotaxy in guava is

1. alternate
2. whorled
3. opposite decussate
4. opposite superposed

Q. Alstonia has _____________ at each node.

1. single leaf
2. two leaves
3. more than two leaves
4. two terminal buds

Q. The arrangement of leaves on the stem is called

1. phyllotaxy
2. venation
3. circinate vernation
4. heterophylly

Q. The type of phyllotaxy in guava is

1. whorled
2. opposite decussate
3. alternate
4. opposite superposed