Cambium Rings

Q.

Differentiate between parenchyma, collenchyma and sclerenchyma

Q.

What is bryophyllum?

Q.

What constitutes the cambial ring?

Q. In which of the following plants, vegetative propagation occurs by rhizome?

1. 
2. 
3. None of these
4. 

Q.

What are the types of simple tissue?

Q. In which of the following plants root bud is involved in vegetative propagation?

1. Ginger
2. Dahlia
3. Sugarcane
4. Banana

Q.

Why are open vascular bundles called so?

Q.

Is Phellogen a type of cambium?

Q.

Close type of vascular bundle lacks?

1. Xylem

2. Sclerenchyma

3. Phloem

4. Cambium

Q.

The tissue that commonly forms ground tissue is

1. Epidermis

2. Parenchyma

3. Collenchyma

4. Sclerenchyma

Q.

A transverse section of the trunk of a tree shows concentric rings which are known as growth rings. How are these rings formed? What is the significance of these rings?

Q. Which among the following is not formed as a result of redifferentiation process?

1. Phellem
2. Phelloderm
3. Secondary xylem
4. Interfascicular cambium

Q. In dicotyledonous plants and gymnosperms, the lateral meristems-vascular cambium and cork cambium appear later in life. They are the meristems that cause increase in the girth of the organs in which they are active. This is known as

Q.

What is the stem of Teak?

Q. Name seven types of cells found in the stem of a sunflower.

Q. Match column I (plant) with column II (vegetative propagule) and select the correct option.
[1 mark]

	Column I		Column II
1	Onion	P	Corms
2	Agave	Q	Bulb
3	Pistia	R	Bulbil
4	Colocasia	S	Offset

1. 1 - Q, 2 - R, 3 - S and 4 - P
2. 1- P, 2 - R, 3 - S and 4 - Q
3. 1 - R, 2 - Q, 3 - P and 4 - S
4. 1 - S, 2 - R, 3 - Q and 4 - P

Q.

Why is parenchyma known as the ground level tissue?(2 points)

Q.

How is cambium formed in dicot stems?

Q. What is the difference between concentric amphivasal and concentric amphicribal?

Q. Given below are assertion and reason. Point out if both are true with reason being correct explanation (A), both true but reason is not correct explanation (B), assertion true but reason wrong (C), and both wrong (D),
Assertion. Vascular cambium is considered as lateral meristem.
Reason. It gives rise to lateral shoots.

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

Q. Intrafascicular cambium, interfascicular cambium and cork cambium constitutes?

1. Primary meristem
2. Lateral meristem
3. Wound meristem
4. Intercalary meristem

Q.

Plants that produce asexually do not produce flower.

1. True
2. False

Q. What are medullary rays and what are their functions?

Q. Pycnoxylic wood is:

1. Porous
2. Thick
3. Soft and loose
4. Compact and hard

Q. As secondary growth proceeds, in a dicot stem, the diameter

1. heartwood increases
2. sapwood increases
3. both sapwood and heartwood increases
4. both sapwood and heartwood remains the same

Q. Which of the following statements is or are not true?
1. Cork cambium is otherwise called as phellogen.
2. Cork is otherwise called as phellem.
3. Secondary cortex is otherwise called as periderm.
4. Cork cambium, cork and secondary-cortex are collectively called as phelloderm.

1. 1 and 2 only
2. 3 and 4 only
3. 2 and 3 only
4. 2 and 4 only

Q. Which of the following is/are not true?
(A) cork cambium is otherwise called phellogen
(B) Cork is otherwise called phellem
(C) Secondary cortex is otherwise called periderm
(D) Cork cambium, cork and secondary cortex are collectively called phelloderm.

1. b and d only
2. a and b only
3. a and d only
4. c and d only
5. b and c only

Q.

How does phellem differ from phelloderm?

Q.

1. Redifferentiation
2. Cell dedifferentiation
3. Cell division
4. Cell differentiation

Q. Which tissue is responsible for secondary growth in the plants?

1. Vascular cambium
2. Xylem
3. Phloem
4. Cork