OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
| Question 
 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
 | 
 Which substance must be transported in the blood by lipoprotein complexes? 
|  |  Cholesterol 
 | 
|  |  Oxygen 
 | 
|  |  Sodium chloride 
 | 
|  |  Amino acids 
 | 
 Explanation: 
Detailed explanation-1: -Cholesterol and triglycerides, being nonpolar lipid substances (insoluble in water), need to be transported in the plasma associated with various lipoprotein particles.
Detailed explanation-2: -Cholesterol is transported by complex particles, called lipoproteins, which have specific proteins on their surface. These proteins, called apolipoproteins, have an essential function in the metabolism of lipoproteins.
Detailed explanation-3: -4.2 Lipoproteins. The main function of lipoproteins is to transport cholesterol, triglycerides, and phospholipids in circulation and other extravascular body fluids.
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