Which of the Following Is True Concerning the Benefits of Quitting

question 1

Multiple Choice

Which of the following is true concerning the benefits of quitting smoking?

• A) The risk of dying of lung cancer is double among smokers than in those who have never smoked.
• B) Persons who quit smoking before the age of 50 have half of the risk of dying in the next 15 years compared with those who continue to smoke.
• C) The risk of dying of coronary heart disease for smokers is double that for lifetime nonsmokers, as is the risk of dying from a stroke.
• D) a and b
• E) b and c

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Definitions:

Distal Convoluted Tubule

A portion of kidney nephron between the loop of Henle and the collecting duct system, involved in the reabsorption of water and ions.

Proximal Convoluted Tubule

The part of the nephron in the kidney where reabsorption of water, ions, and all organic nutrients occurs.

Collecting Duct

A network of tubules and ducts in the kidney that is involved in the process of concentrating urine and transporting it to the renal pelvis.

Glomerulus

A network of tiny blood vessels located at the beginning of a nephron in the kidney, where blood filtration takes place.