Questions: Week 8 Homework (Chapter 19) Question 8 of 11 (1 point) I Question Attempt: 1 of Unlimited Which value in each pair corresponds to an LDL particle? Select the single best answer for each part. Part 1 of 3 Percent cholesterol by mass: 2% versus 8% 8% cholesterol by mass 2% cholesterol by mass Part 2 of 3 Percent protein by mass: 22% versus 51% 22% protein by mass 51% protein by mass

Week 8 Homework (Chapter 19) Question 8 of 11 (1 point) I Question Attempt: 1 of Unlimited Which value in each pair corresponds to an LDL particle? Select the single best answer for each part. Part 1 of 3 Percent cholesterol by mass: 2% versus 8% 8% cholesterol by mass 2% cholesterol by mass Part 2 of 3 Percent protein by mass: 22% versus 51% 22% protein by mass 51% protein by mass
Transcript text: Week 8 Homework (Chapter 19) Question 8 of 11 ( 1 point) I Question Attempt: 1 of Unlimited Which value in each pair corresponds to an LDL particle? Select the single best answer for each part. Part 1 of 3 Percent cholesterol by mass: $2 \%$ versus $8 \%$ $8 \%$ cholesterol by mass $2 \%$ cholesterol by mass Part 2 of 3 Percent protein by mass: $22 \%$ versus $51 \%$ $22 \%$ protein by mass $51 \%$ protein by mass
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Solution

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To determine which values correspond to an LDL (Low-Density Lipoprotein) particle, we need to understand the typical composition of LDL particles in terms of cholesterol and protein content.

Part 1 of 3: Percent cholesterol by mass

LDL particles are known for having a relatively high cholesterol content compared to other lipoproteins. Typically, LDL particles have a higher percentage of cholesterol by mass.

  • $8 \%$ cholesterol by mass: This is a higher percentage and is more characteristic of LDL particles.
  • $2 \%$ cholesterol by mass: This is a lower percentage and is less characteristic of LDL particles.

The answer is: $8 \%$ cholesterol by mass

Part 2 of 3: Percent protein by mass

LDL particles have a lower percentage of protein compared to other lipoproteins like HDL (High-Density Lipoprotein), which have a higher protein content.

  • $22 \%$ protein by mass: This is a lower percentage and is more characteristic of LDL particles.
  • $51 \%$ protein by mass: This is a higher percentage and is more characteristic of HDL particles.

The answer is: $22 \%$ protein by mass

In summary, for LDL particles, the correct values are $8 \%$ cholesterol by mass and $22 \%$ protein by mass.

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