Question

Glucose, a carbohydrate, readily dissolves in your bloodstream. cholesterol and triglycerides—both lipids—are packaged inside the waterproof spaces of lipoproteins so they can enter the bloodstream. use the molecular models from the activity along with those in your textbook to compare the chemical compositions and structures of glucose, cholesterol, and triglycerides. construct an explanation for how the compositions and structures of these carbon-based molecules are related to the way they interact with your bloodstream.

Answer 1

Answer:

Glucose is a polar molecule because of the differential distribution of the electron cloud of the molecule around it. The atoms with a higher atomic mass, such as oxygen, take up most of the electron could making them electronegative. Other regions of the molecule become positive dipoles.

This makes this molecule dissolves easily in blood plasma which is mainly made up of water. Water is a polar solvent and easily dissolves polar solutes due to positive interactions between their molecules, by hydrogen bonding.

However, triglycerides, cholesterol, and lipids are non-polar molecules because they are made up of carbon chains than have no net charges. This, therefore, makes them hydrophobic because they do not have positive interactions with water molecules. They, therefore, require carrier proteins to prevent them from clumping up together and blocking the blood vessels. The inside of the carrier proteins in non-polar hence able to carry the lipids while their outside is polar hence able to interact positively with water in the blood plasma.

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