State True (T) or False (F) to the given statements and
select the correct option
(A) All tissue layers exterior to the vascular cambium
constitute bark.
(B) Root hypodermis is sclerenchymatous.
(C) Ground tissue of leaves is called mesophyll.
(D) Due to presence of casparian strips, endodermis
is impervious to water.
    (A)  (B)   (C)  (D)
1. T    F      F     T 
2. T    F      T     T
3. F    T      T     F
4. T    F      T     F

State True (T) or False (F) to the given statements and select the correct option
(A) Annual rings are distinct in plants growing in temperate regions.
(B) Lenticels occur in most woody trees and permit the exchange of gases.
(C) Due to stellar secondary growth, central cylinder of wood surrounded by secondary phloem is formed.
(D) The cells of endodermis opposite to protoxylem divide to give rise vascular cambium in dicot roots.

    (A) (B)  (C)  (D)
1.  T    T     F    F
2.  T    T     T    F 
3.  T    F     T    F
4.  F    F     T    T

The intrafascicular cambium

1. is a simple permanent tissue

2. is a meristematic tissue

3. is a complex permanent tissue

4. is secondary meristem

The feature which is common to both heartwood and sapwood is

1. Both are the regions of secondary xylem

2. Both are involved in the conduction of water.

3. Both comprise dead elements with the accumulation of aromatic compounds.

4. Both are located in the central layers of the stem.

In a dicot stem, the interfascicular cambium strip arises 

1. Between xylem and phloem

2. From medullary rays

3. From pith

4. From pericycle

Cylindrical meristem is term used for?
1. Lateral meristem.
2. Promeristem.
3. Intercalary meristem.
4. Primary meristem.

Which of the following is correct statement for intercalary meristems?
1. They lie at tip of root apex
2. They lie at base of stem always
3. They are short lived and consumed during primary growth
4. They are long lived and cause increase in length

Regeneration of damaged growing grass following grazing is largely due to:

1. Lateral meristem

2. Apical meristem

3. Intercalary meristem

4. Secondary meristem

Which of the statements given below is not true about the formation of Annual Rings in trees?
 

For a critical study of secondary growth in plants, which one of the following pairs is suitable:

1. Sugarcane and sunflower

2. Teak and pine

3. Deodar and Fern

4. Wheat and maidenhair fern