QuestionJune 1, 2025

Which of the following factors influence membrane fluidity? Temperature at which phospholipids are synthesized Presence of cholesterol within the membrane Concentration of DNA in the nucleus Length of hydrocarbon tails in phospholipids Degree of saturation (presence of double bonds) in fatty acid chains

Which of the following factors influence membrane fluidity? Temperature at which phospholipids are synthesized Presence of cholesterol within the membrane Concentration of DNA in the nucleus Length of hydrocarbon tails in phospholipids Degree of saturation (presence of double bonds) in fatty acid chains
Which of the following factors influence membrane fluidity? Temperature at which phospholipids are synthesized Presence of cholesterol within the membrane Concentration of DNA in the nucleus Length of hydrocarbon tails in phospholipids Degree of saturation (presence of double bonds) in fatty acid chains

Solution
4.0(180 votes)

Answer

Temperature at which phospholipids are synthesized, Presence of cholesterol within the membrane, Length of hydrocarbon tails in phospholipids, Degree of saturation (presence of double bonds) in fatty acid chains. Explanation 1. Identify relevant factors Membrane fluidity is influenced by temperature, cholesterol presence, hydrocarbon tail length, and saturation degree. 2. Analyze each factor - **Temperature** affects how tightly phospholipids pack. - **Cholesterol** modulates fluidity by preventing tight packing at low temperatures and restricting movement at high temperatures. - **Hydrocarbon tail length**: Shorter tails increase fluidity. - **Degree of saturation**: Unsaturated (double bonds) increase fluidity. 3. Exclude irrelevant factors Concentration of DNA in the nucleus does not affect membrane fluidity.

Explanation

1. Identify relevant factors<br /> Membrane fluidity is influenced by temperature, cholesterol presence, hydrocarbon tail length, and saturation degree.<br /><br />2. Analyze each factor<br /> - **Temperature** affects how tightly phospholipids pack.<br /> - **Cholesterol** modulates fluidity by preventing tight packing at low temperatures and restricting movement at high temperatures.<br /> - **Hydrocarbon tail length**: Shorter tails increase fluidity.<br /> - **Degree of saturation**: Unsaturated (double bonds) increase fluidity.<br /><br />3. Exclude irrelevant factors<br /> Concentration of DNA in the nucleus does not affect membrane fluidity.
Click to rate:

Similar Questions