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Multiple Choice
Which example best demonstrates how the chemistry of water benefits plants?
A
Water's low specific heat makes plant leaves heat up rapidly during the day.
B
Water's high density causes it to sink below plant roots, preventing absorption.
C
Water's polarity allows it to dissolve minerals and transport them from soil to plant roots.
D
Water's inability to form hydrogen bonds limits nutrient movement in plants.
Verified step by step guidance
1
Step 1: Begin by understanding the unique chemical properties of water that are relevant to plants. Water is a polar molecule, meaning it has a partial positive charge on the hydrogen atoms and a partial negative charge on the oxygen atom. This polarity allows water to interact with and dissolve various substances, including minerals and nutrients.
Step 2: Consider the role of water in transporting nutrients within plants. Water's polarity enables it to dissolve minerals in the soil, forming a solution that can be absorbed by plant roots. This process is essential for delivering nutrients to different parts of the plant.
Step 3: Evaluate the incorrect options to clarify why they do not demonstrate the chemistry of water benefiting plants. For example, water's low specific heat does not cause plant leaves to heat up rapidly; instead, it helps regulate temperature. Similarly, water's high density does not prevent absorption, and its ability to form hydrogen bonds actually facilitates nutrient movement rather than limiting it.
Step 4: Focus on the correct answer: Water's polarity is the key property that allows it to dissolve minerals and transport them from the soil to plant roots. This process is vital for plant growth and survival.
Step 5: Summarize the importance of water's polarity in plant biology. By dissolving and transporting essential nutrients, water supports various physiological processes, including photosynthesis, cellular respiration, and overall plant development.