Secondary Growth in Cork Cambium

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.

Undifferentiated cells : ______ : : differentiated cells : permanent

Q. Quinine is extracted from the bark of _____ tree.

1. cinchona
2. neem
3. mango
4. giloy

Q.

Do plants absorb water at night?

Q.

In the diagram of lenticel, identify the parts indicated as A, B, C, D

1. A-Phellem, B-Complementary cells, C-Phelloderm, D-Periderm

2. A-Complementary cells, B-Phellogen, C-Phelloderm, D-Periderm

3. A-Complementary cells, B-Phellem, C-Periderm, D-Phelloderm

4. A-Phellem, B-Complementary cell, C-Phellogen, D-Phelloderm

Q. Which of the following statements are not correct?
I. Cork cambium is otherwise called phellogen.
II. Cork is otherwise called phellem.
III. Secondary cortex is otherwise called periderm.
IV. Cork cambium, cork and secondary cortex are collectively called phelloderm.
Select the correct answer using the codes given below:

1. I and IV
2. II and IV
3. I and II
4. II and III
5. III and IV

Q.

The commercial cork is obtained from

1. Teak

2. Banyan

3. Quercus suber

4. Peepal

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. The removal of a ring of bark from the trunk of a tree eventually kills it because

1. the exposed part becomes infected with fundi
2. mineral salts cannot go up
3. phloem is removed, food cannot travel down
4. sapwood is removed, water cannot go up

Q.

When is the Cambium most active in plants of temperate regions?

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

Q. Sporeine is primarily a

1. herbicide
2. insecticide
3. pesticide
4. mycoherbicide

Q. Why are meristematic tissues used for micropropagation? [2 marks]

Q. Main function of lenticel is:

1. Transpiration
2. Guttation
3. Gaseous exchange
4. Bleeding

Q. Bark includes?

1. Primary xylem and periderm
2. Primary phloem and primary xylem
3. Periderm & secondary phloem
4. Periderm and pith

Q. The cork cambium, cork and secondary cortex are collectively called:

1. Phellem
2. Phelloderm
3. Phellogen
4. Periderm

Q. The cork cambium, cork and secondary cortex are collectively called:

1. Phelloderm
2. Phellem
3. Phellogen
4. Periderm

Q. Which of the following statements is or are not true?
a. Cork cambium is otherwise called as phellogen.
b. Cork is otherwise called as phellem.
c. Secondary cortex is otherwise called as periderm.
d. Cork cambium, cork and secondary cortex are collectively called as phelloderm.

1. Both (C) and (D) only
2. Both (A) and (B) only
3. Both (B) and (D) only
4. Both (A) and (D) only
   

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

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

Q. Periderm includes:

1. Cork and secondary cortex
2. Only cork cambium
3. Cork cambium and cork only
4. Cork cambium, phellem and secondary cortex

Q. Commercial cork is obtained from

1. Berberis$/$Barberry
2. Salix$/$Willow
3. Quercus$/$Oak
4. Betula$/$Birch

Q. Scattered fibrovascular bundles are characteristic of which of the following?

1. Diploxylic
2. Dictyostele
3. Eustele
4. Atactostele

Q. Main function of lenticel is:

1. Transpiration
2. Guttation
3. Gaseous exchange
4. Bleeding

Q. Cork cells are impervious due to deposit of

1. Cutin
2. Suberin
3. Chitin
4. Lignin

Q. Lenticels are involved in

1. Transpiration
2. Gaseous exchange
3. Food transport
4. Photosynthesis

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

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

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. Antimalarial drug is obtained from

1. Solidago

2. Artemesia annua

3. Eclipta prostrata

4. Centipeda obcularis

Q. What is the name of aerating pores in the bark of stem?

1. Stomata
2. All of the above
3. Guttation pore
4. Lenticel