Chapter 24, Problem 24.12UKC

(a)

Interpretation Introduction

Interpretation:

Using the given description about the lipoprotein it should be identified as either chylomicron, HDL, LDL or VLDL.

Which lipoprotein has the lowest density and why?

Concept introduction:

Lipoproteins are a biochemical assembly that contains both proteins and lipids.

Lipoproteins can be classified on the basis of density (protein: lipid ratio)

More protein – increased density

More lipid – decreased density

Chylomicrons are lipoprotein particles that consist of triglycerides, phospholipids, cholesterol and proteins. They transport dietary lipids from the intestines to other locations in the body. It is the largest lipoprotein with low density due to high lipid: protein ratio.

Very Low Density Lipoproteins (VLDL) are synthesized in liver and they transport endogenous triglycerides. Second highest in triacylglycerol as percentage of weight.

LDLs- This is a lipoprotein which transport cholesterol and it is considered as the bad cholesterol.

HDL (high density lipoprotein) it has highest density due to high protein: lipid ratio.

(b)

Interpretation Introduction

Interpretation:

Using the given description about the lipoprotein it should be identified as either chylomicron, HDL, LDL or VLDL.

Which lipoprotein carries triacylglycerols from the diet?

Concept introduction:

Lipoproteins are a biochemical assembly that contains both proteins and lipids.

Lipoproteins can be classified on the basis of density (protein: lipid ratio)

More protein – increased density

More lipid – decreased density

Chylomicrons are lipoprotein particles that consist of triglycerides, phospholipids, cholesterol and proteins. They transport dietary lipids from the intestines to other locations in the body. It is the largest lipoprotein with low density due to high lipid: protein ratio.

Very Low Density Lipoproteins (VLDL) are synthesized in liver and they transport endogenous triglycerides. Second highest in triacylglycerol as percentage of weight.

LDLs- This is a lipoprotein which transport cholesterol and it is considered as the bad cholesterol.

HDL (high density lipoprotein) it has highest density due to high protein: lipid ratio.

(c)

Interpretation Introduction

Interpretation:

Using the given description about the lipoprotein it should be identified as either chylomicron, HDL, LDL or VLDL.

Which lipoprotein removes cholesterol from circulation?

Concept introduction:

Lipoproteins are a biochemical assembly that contains both proteins and lipids.

Lipoproteins can be classified on the basis of density (protein: lipid ratio)

More protein – increased density

More lipid – decreased density

Chylomicrons are lipoprotein particles that consist of triglycerides, phospholipids, cholesterol and proteins. They transport dietary lipids from the intestines to other locations in the body. It is the largest lipoprotein with low density due to high lipid: protein ratio.

Very Low Density Lipoproteins (VLDL) are synthesized in liver and they transport endogenous triglycerides. Second highest in triacylglycerol as percentage of weight.

LDLs- This is a lipoprotein which transport cholesterol and it is considered as the bad cholesterol.

HDL (high density lipoprotein) it has highest density due to high protein: lipid ratio.

(d)

Interpretation Introduction

Interpretation:

Using the given description about the lipoprotein it should be identified as either chylomicron, HDL, LDL or VLDL.

Which lipoprotein contains “bad cholesterol” from a vascular disease risk stand point?

Concept introduction:

Lipoproteins are a biochemical assembly that contains both proteins and lipids.

Lipoproteins can be classified on the basis of density (protein: lipid ratio)

More protein – increased density

More lipid – decreased density

Chylomicrons are lipoprotein particles that consist of triglycerides, phospholipids, cholesterol and proteins. They transport dietary lipids from the intestines to other locations in the body. It is the largest lipoprotein with low density due to high lipid: protein ratio.

Very Low Density Lipoproteins (VLDL) are synthesized in liver and they transport endogenous triglycerides. Second highest in triacylglycerol as percentage of weight.

LDLs- This is a lipoprotein which transport cholesterol and it is considered as the bad cholesterol.

HDL (high density lipoprotein) it has highest density due to high protein: lipid ratio.

(e)

Interpretation Introduction

Interpretation:

Using the given description about the lipoprotein it should be identified as either chylomicron, HDL, LDL or VLDL.

Which lipoprotein has the highest ratio of proteins to lipid?

Concept introduction:

Lipoproteins are a biochemical assembly that contains both proteins and lipids.

Lipoproteins can be classified on the basis of density (protein: lipid ratio)

More protein – increased density

More lipid – decreased density

Chylomicrons are lipoprotein particles that consist of triglycerides, phospholipids, cholesterol and proteins. They transport dietary lipids from the intestines to other locations in the body. It is the largest lipoprotein with low density due to high lipid: protein ratio.

Very Low Density Lipoproteins (VLDL) are synthesized in liver and they transport endogenous triglycerides. Second highest in triacylglycerol as percentage of weight.

LDLs- This is a lipoprotein which transport cholesterol and it is considered as the bad cholesterol.

HDL (high density lipoprotein) it has highest density due to high protein: lipid ratio.

(f)

Interpretation Introduction

Interpretation:

Using the given description about the lipoprotein it should be identified as either chylomicron, HDL, LDL or VLDL.

Which lipoprotein carries triacylglycerols from the liver to peripheral tissue? How are triacylglycerols used?

Concept introduction:

Lipoproteins are a biochemical assembly that contains both proteins and lipids.

Lipoproteins can be classified on the basis of density (protein: lipid ratio)

More protein – increased density

More lipid – decreased density

Chylomicrons are lipoprotein particles that consist of triglycerides, phospholipids, cholesterol and proteins. They transport dietary lipids from the intestines to other locations in the body. It is the largest lipoprotein with low density due to high lipid: protein ratio.

Very Low Density Lipoproteins (VLDL) are synthesized in liver and they transport endogenous triglycerides. Second highest in triacylglycerol as percentage of weight.

LDLs- This is a lipoprotein which transport cholesterol and it is considered as the bad cholesterol.

HDL (high density lipoprotein) it has highest density due to high protein: lipid ratio.

(g)

Interpretation Introduction

Interpretation:

Using the given description about the lipoprotein it should be identified as either chylomicron, HDL, LDL or VLDL.

Which lipoprotein transports cholesterol from the liver to peripheral tissues?

Concept introduction:

Lipoproteins are a biochemical assembly that contains both proteins and lipids.

Lipoproteins can be classified on the basis of density (protein: lipid ratio)

More protein – increased density

More lipid – decreased density

Chylomicrons are lipoprotein particles that consist of triglycerides, phospholipids, cholesterol and proteins. They transport dietary lipids from the intestines to other locations in the body. It is the largest lipoprotein with low density due to high lipid: protein ratio.

Very Low Density Lipoproteins (VLDL) are synthesized in liver and they transport endogenous triglycerides. Second highest in triacylglycerol as percentage of weight.

LDLs- This is a lipoprotein which transport cholesterol and it is considered as the bad cholesterol.

HDL (high density lipoprotein) it has highest density due to high protein: lipid ratio.