Which of the following is an example of the transport of insulin and cholesterol into animal cells?

exocytosis

endocytosis

passive transport

none of the above

Cholesterol and insulin are taken inside the cell by through a receptor mediated ENDOCYTOSIS process. These macromolecules bind to the complementray protein of the receptor, and then are engulfed inside the cell. If this process stops, cholesterol starts accumulating in the blood vessels, increasing the chances of a heart attack. Similarly, insulin if not taken up, may lead to increased levels of glucose in the blood.