The correct option is (c) LDL consists of cholesterol and protein.
One of the five main categories of lipoproteins, low-density lipoprotein (LDL), transports cholesterol throughout the body to the areas where it is required for cell repair and deposits it inside the artery walls. They need to be bound to proteins in order to pass through the hydrophilic blood.
The hydrophobic core of the LDL particle is made up of fatty acid esters of cholesterol, while the outer membrane is made up of unesterified cholesterol. The membrane contains a single copy of the hydrophobic apo-B protein, which facilitates the binding of LDL particles to particular cell-surface receptors.
Hence, LDL consists of cholesterol and protein.
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<span>Angioplasty is the technique of mechanically widening narrowed or obstructed arteries. This is the process of putting a balloon in your arteries to widen it for blood flow. So Angioplasty would not be the best way to treat an aneurysm because an aneurysm is a bubble full of blood. Angioplasty would not work.</span>
Answer: XX
Explanation: Females have two copies of the X chromosome, males have an X and a Y.
