Question

which of the following is a characteristic of saturated fatty acids? always liquid at room temperature found only in plants contain double bonds solid at room temperature

Explanation:

To determine the characteristic of saturated fatty acids, we analyze each option:

• "Always liquid at room temperature": Unsaturated fatty acids (like oils) are often liquid at room temp; saturated ones (like fats) are usually solid. Eliminate this.
• "Found only in plants": Saturated fatty acids are found in animal products too (e.g., butter), while unsaturated are more common in plants. Eliminate this.
• "Contain double bonds": Saturated fatty acids have single bonds between carbon atoms; unsaturated have double bonds. Eliminate this.
• "Solid at room temperature": Saturated fatty acids (e.g., animal fats, coconut oil) tend to be solid at room temperature due to their straight, tightly packed molecular structure. This matches their properties.

Answer:

D. Solid at room temperature (assuming the options are labeled A - D with A: Always liquid at room temperature, B: Found only in plants, C: Contain double bonds, D: Solid at room temperature)