Multiple choice

Which of the following substances is/are transported by blood plasma?

  1. Food

  2. Potassium

  3. Alcohol

  4. All of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Blood consists of a fluid medium known as plasma, in which red blood cells (RBCs), white blood cells (WBCs) and platelets are suspended. Plasma transports food (nutrients), carbon dioxide and nitrogenous wastes in dissolved form. Potassium (K) - Mineral nutrients are supplied by plasma. K helps in contraction of muscles and in sending nerve impulse. Alcohol - Alcohol is also transported by blood plasma. BAC (Blood Alcohol Concentration) is the concentration of alcohol in a person's blood. Alcohol is quickly absorbed in the blood. High intake of alcohol decreases the level of beta-carotene in plasma. (Beta-carotene is used for formation of vitamin A.)

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