HORTICULTURE

HORTICULTURE SCIENCE

PLANT BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The vascular tissue that produces new xylem and phloem is called:
A
rhizoids
B
spores
C
cambium
D
veins
Explanation: 

Detailed explanation-1: -The vascular cambium arises between the primary xylem and phloem of a young stem or root. Parenchymatous cells become meristematic and begin to produce secondary xylem or wood toward the inside of the cambium and secondary phloem toward the outside of the cambium.

Detailed explanation-2: -Secondary xylem (wood) and phloem are the inner and outer derivative products of the vascular cambium. Xylem is mainly comprised with dead cells with thickened cell walls rich in cellulose, hemicelluloses, and lignin and responsible for providing mechanical support and conducting water and minerals for the plant.

Detailed explanation-3: -The cambium present between primary xylem and primary phloem is called the intrafascicular cambium (within vascular bundles).

Detailed explanation-4: -primary xylem and phloem called vascular cambium. This meristem consists of a narrow zone of cells that form new secondary xylem (wood) and secondary phloem (secondary vascular tissues).

Detailed explanation-5: -The cork cambium is also known as phellogen that forms a layer of cells which produces a secondary protective layer of the stem called the periderm. So, the correct answer is ‘Lateral meristem’

There is 1 question to complete.