HORTICULTURE

HORTICULTURE SCIENCE

ULTRA STRUCTURE OF PLANT CELLS AND ORGANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
This vascular tissue is alive and is controlled by the associated companion cells:
A
pallisade mesophyll
B
phloem
C
stomata
D
xylem
Explanation: 

Detailed explanation-1: -Phloem (/ˈfloʊ. əm/, FLOH-əm) is the living tissue in vascular plants that transports the soluble organic compounds made during photosynthesis and known as photosynthates, in particular the sugar sucrose, to the rest of the plant. This transport process is called translocation.

Detailed explanation-2: -The phloem tissue consists of several types of cells, including sieve elements, companion cells, and phloem parenchyma cells.

Detailed explanation-3: -Phloem parenchyma and companion cells are elements of phloem and both are living cells.

Detailed explanation-4: -Companion cells are found in the phloem of flowering plants. These are specialized parenchyma cells They are nucleated cells with ribosomes and mitochondria.

There is 1 question to complete.