Plants, which survive by withdrawing water from their cells to prevent ice formation during extreme cold up to -40 ° C, are known as:
[amp_mcq option1=”Frost sensitive” option2=”Frost tolerant” option3=”Frost resistant” option4=”Chilling resistant” correct=”option2″]
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UPSC Geoscientist – 2021
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.