Secondary Growth in Cork Cambium

Q. Lenticels help in

1. protection of the plant
2. checking evaporation of water
3. facilitating gaseous exchange
4. secondary growth of the plant

Q. Anatomically, the bark of a tree consists of

1. cork and the secondary cortex
2. all tissues outside the secondary cortex
3. all tissues outside the vascular cambium
4. phellem and the cork cambium

Q.

Where do primary tissues develop?

Q. Secondary growth results in the formation of lens-shaped pores on the barks, which aids in

1. exchange of gases
2. transpiration
3. photosynthesis
4. both a and b

Q. Phellogen, phellem, and phelloderm are collectively known as

1. prederm
2. hypoderm
3. paraderm
4. periderm

Q. How many of the following tissues are secondary in origin?
Interfascicular cambium, Phellem, Intrafascicular cambium, Phelloderm, Phellogen

1. 2
2. 3
3. 4
4. 5

Q. cambium is found within the vascular bundles of dicots, which eventually grows out of it during secondary growth.

1. Interfascicular
2. Cork
3. Primary
4. Intrafascicular