Multiple Choice
What can you infer from the fact that nitrogen gas (\(N_2\)) is useless to animals?
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3. Water
Properties of Water- The Universal Solvent
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Which of the following is an important function of water in biological systems?
A
It acts as a universal solvent, facilitating chemical reactions.
B
It directly produces ATP during cellular respiration.
C
It provides structural support to cell walls.
D
It stores genetic information.
Verified step by step guidance1
Understand the role of water in biological systems: Water is essential for life and has unique properties that make it vital for various biological processes.
Focus on the concept of 'universal solvent': Water's polarity allows it to dissolve a wide range of substances, facilitating chemical reactions by enabling reactants to interact in solution.
Eliminate incorrect options: Water does not directly produce ATP during cellular respiration; ATP is produced through processes like glycolysis, the Krebs cycle, and oxidative phosphorylation.
Consider structural support: While water contributes to turgor pressure in plant cells, structural support to cell walls is primarily provided by cellulose, not water itself.
Evaluate genetic information storage: Genetic information is stored in DNA and RNA, not water. Therefore, the correct function of water in biological systems is its role as a universal solvent.
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