Secondary Growth in Stem

Q.

Wood is a common name for

1. Cambium

2. Vascular bundles

3. Phloem

4. Secondary xylem

Q. How many STRUCTURAL PROTEINS are Synthesized by Mitochondria ?

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.

list some of the tissues in a woody dicotyledenous plant that are the products of redifferentiation?

Q. Phloem is active in all directions within a cell. How does its components helps to do its functions?

Q.

Wood is a common name for

1. cambium

2. vascular bundles

3. phloem

4. secondary xylem

Q. For an increase in girth of the stem and thickness of the root,

1. meristem located at the base of nodes and internodes is responsible
2. meristem located in the root apex and the shoot apex is responsible
3. meristem located on the sides of the root and shoot tissues are responsible
4. only vascular bundle is responsible

Q.

Which of the following forms the part of the root where cells divide rapidly?

1. The root apical meristem

2. Root hair

3. The root cap only

4. Depending on the plant, either only a or only b

Q. Which of the following is/are present in periderm?

1. Cork
2. Cork cambium
3. Secondary cortex
4. All the above

Q.

The annular and spirally thickened conducting elements generally develop in the protoxylem when the root or stem is

1. maturing

2. elongating

3. widening

4. differentiating

Q.

The youngest secondary phloem in a dicot stem is

1. Inside the primary phloem

2. Just outside the xylem.

3. Just outside vascular cambium

4. Inside vascular cambium

Q. Interfascicular cambium develops from the cells of:

1. Medullary rays
2. Xylem parenchyma
3. Endodermis
4. Pericycle