Plants, which survive by withdrawing water from their cells to prevent

Plants, which survive by withdrawing water from their cells to prevent ice formation during extreme cold up to -40 ° C, are known as:

Frost sensitive

Frost tolerant

Frost resistant

Chilling resistant

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This question was previously asked in

UPSC Geoscientist – 2021

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Plants that survive extreme cold by withdrawing water from their cells to prevent intracellular ice formation are known as frost resistant or freeze tolerant.

Frost resistance or freeze tolerance involves various physiological adaptations that allow plants to survive temperatures below freezing. Mechanisms include supercooling (preventing ice formation even below the freezing point) or dehydrating cells to allow ice to form only in extracellular spaces, preventing lethal damage from intracellular ice crystals.

Frost sensitive plants are damaged or killed by freezing temperatures. Chilling resistant plants can tolerate low temperatures above freezing (typically 0-15 °C). The description in the question specifically points to mechanisms that prevent freezing damage at sub-zero temperatures.

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