객관식
Which best explains why blood and the cytoplasm of cells are mainly composed of liquid water?
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3. Water
Properties of Water- The Universal Solvent
객관식
Which statement best explains why the body can obtain water from sources such as milk, juices, fruits, and vegetables?
A
Water is a universal solvent and is present in many foods and beverages.
B
Water in foods is chemically different from the water in beverages.
C
Only pure water can be absorbed by the body; other sources must be converted first.
D
The body cannot extract water from foods, only from liquids.
검증된 단계별 안내1
Step 1: Begin by understanding the concept of water as a universal solvent. Water is capable of dissolving a wide variety of substances, which makes it present in many foods and beverages, including milk, juices, fruits, and vegetables.
Step 2: Recognize that water in foods and beverages is chemically the same as pure water. The molecular structure of water (H₂O) does not change whether it is in a liquid or solid form, or mixed with other substances.
Step 3: Clarify that the body can absorb water from various sources, including foods and beverages. Water does not need to be converted into a different form before absorption; it is extracted during digestion and absorbed by the intestines.
Step 4: Eliminate incorrect statements. For example, the statement 'Only pure water can be absorbed by the body; other sources must be converted first' is false because the body can extract water from foods and beverages without conversion.
Step 5: Conclude that the correct explanation is: 'Water is a universal solvent and is present in many foods and beverages,' as this aligns with the biological understanding of water's role in the body.
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