HORTICULTURE

HORTICULTURE SCIENCE

ULTRA STRUCTURE OF PLANT CELLS AND ORGANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How growth happens in plants
A
feeding it to the worms
B
cell enlargement
C
feeding artificial fertilizer
D
cutting every week
Explanation: 

Detailed explanation-1: -When a plant cell enlarges, most of the increase in volume is due to the uptake of water into an expanding–centrally located vacuole. The direction of the cell expansion depends on the molecular architecture of the wall and can be primarily in one direction or equally in all directions.

Detailed explanation-2: -Expansive growth of cells with walls is the result of two simultaneous and interrelated biophysical processes: water uptake and wall deformation. Water uptake produces turgor pressure, which stresses the wall. The wall deforms in response to the wall stresses.

Detailed explanation-3: -Cell growth (cell enlargement) is as fundamental for growth of organisms as is cell division. Implicit in cell growth is an increase in cell size, i.e., cell enlargement. Without cell enlargement, no organism can continue to grow. Cells unable to enlarge eventually are unable to divide such that growth will cease.

Detailed explanation-4: -Cell growth is the process by which cells accumulate mass and increase in physical size.

Detailed explanation-5: -Expansive growth of plant cells requires simultaneous uptake of water into the cell and irreversible expansion of the cell wall.

There is 1 question to complete.