Question

1. 66% of the H2O in our bodies is found

a. within cells

b. interstitial fluid

c. in blood

2. If a poison ceased the production of ATP, the following cellular processes would stop:

a. osmosis of water via aquaporins

b. diffusion of oxygen across the plasma membrane

c. cotransport of glucose and sodium into cells

Group of answer choicesin interstitial flui

Answer 1

Answer

1. Option A) Within cells

• Total body water is divided into two fluid compartments
  - Extracellular and Intracellular
• Extracellular compartment (includes fluid in plasma, interstitial space) contains 33% of total body water.
• Intracellular compartment (within the cells) contains 66% of total body water.

2. Option C) Cotransport of glucose and sodium into the cell

• Osmosis and Diffusion are passive transport mechanisms that do not require ATP.
• The cotransport of glucose and sodium is known as secondary active transport.
• It uses ATP indirectly.