The inside of the barrel-shaped LDL protein consists of hydrophobic amino acids, while its outside portions in contact with the blood fluid consist of hydrophilic amino acids.
LDL is a type of lipoprotein, i.e., it contains protein as well as lipid (cholesterol). The full form of LDL is Low Density Lipid. LDL is considered to be the bad cholesterol for the body. It can cause diseases of the heart like heart attack or stroke.
Amino acids are the essential molecule that act as a monomer for the formation of proteins inside the body. They contain an amino group and a carboxylic group attached to the same carbon atom. There are also a hydrogen atom and a variable R group attached to the carbon, also called the alpha carbon.
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I think it is D) Both processes involve energy transformations
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Nutrients cross the membrane wall with the help of protein channels.
Woah what is going on in these comments uhhhhhh
Answer:
What goes up must come down
Explanation:
Whenever we jump up or throw a ball in the air, we(or the ball) always come back down to the Earth because of the Earth's gravity.
