Multiple Choice
Which of the following is a primary function of membrane transport systems in cells?
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6. The Membrane
Introduction to Membrane Transport
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What would most likely happen to plants if they did not have a waxy outer coating (cuticle)?
A
They would lose water rapidly through evaporation.
B
They would absorb more minerals from the soil.
C
They would be able to photosynthesize more efficiently.
D
They would become less susceptible to fungal infections.
Verified step by step guidance1
Understand the function of the cuticle: The cuticle is a waxy, protective layer on the surface of plant leaves and stems. Its primary role is to minimize water loss through evaporation and provide a barrier against pathogens like fungi.
Analyze the consequences of not having a cuticle: Without this waxy coating, plants would lose water more rapidly because the cuticle prevents excessive water evaporation from the plant's surface.
Consider the role of the cuticle in mineral absorption: The cuticle does not directly influence the absorption of minerals from the soil, as this process occurs through the roots, not the leaf surface.
Evaluate the impact on photosynthesis: The cuticle does not directly enhance photosynthesis efficiency. Photosynthesis depends on factors like light, carbon dioxide, and chlorophyll, not the presence of the cuticle.
Assess susceptibility to fungal infections: Without the cuticle, plants would likely become more susceptible to fungal infections because the cuticle acts as a physical barrier to pathogens.
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