HORTICULTURE SCIENCE
ULTRA STRUCTURE OF PLANT CELLS AND ORGANS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Leaf adaptations that help plants survive in dry or cold environments include cactus spines that reduce water loss, thick leaves that store water, and very thick ____
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palisade mesophyll
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spongy mesophyll
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upper epidermis
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cuticle
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Explanation:
Detailed explanation-1: -Xerophytes (Dry) Plant adapted to live in dry conditions. Common adaptations to reduce the rate of transpiration include: Thick waxy cuticle: The cuticle cuts down water loss in two ways: it acts as a barrier to evaporation and also the shiny surface reflects heat and so lowers temperature.
Detailed explanation-2: -Coniferous plant species that thrive in cold environments, like spruce, fir, and pine, have leaves that are reduced in size and needle-like in appearance. These needle-like leaves have sunken stomata and a smaller surface area: two attributes that aid in reducing water loss.
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