Plants are killed in water by frost due to:

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) When the temperature drops below freezing,the water inside the plant cells freezes. This leads to the formation of ice crystals,which cause mechan

Vedclass · Accepted Answer

Desiccation and mechanical damage

Vedclass · Answer

(A) When the temperature drops below freezing,the water inside the plant cells freezes. This leads to the formation of ice crystals,which cause mechanical damage to the cell walls and membranes. Furthermore,the freezing of water outside the cells creates a water potential gradient that draws water out of the cells,leading to severe desiccation (dehydration) of the plant tissues. Both these factors combined result in the death of the plant.

Column $I$	Column $II$
$a.$ Auxin	$(i)$ Root hair formation
$b.$ Cytokinin	$(ii)$ Seed development
$c.$ Ethylene	$(iii)$ Xylem differentiation
$d.$ $ABA$	$(iv)$ Nutrient mobilisation

Similar Questions

Match the following:

Column $I$ Column $II$

$a.$ Auxin $(i)$ Root hair formation

$b.$ Cytokinin $(ii)$ Seed development

$c.$ Ethylene $(iii)$ Xylem differentiation

$d.$ $ABA$ $(iv)$ Nutrient mobilisation

Essential oils are made of:

The leaf of $Mimosa$ $pudica$ droops down upon touching due to:

Both nyctinasty and thigmonasty are observed in

On touching the leaves of $Mimosa \text{ } pudica$ droop down because of:

Vedclass Test Series

Exam Paper Generator

Online Exam Module