lab 2

Question 1

What does ECF stand for?

Answer 1

ExtraCellular Fluid

ECF refers to the fluid found outside of cells in the body.

Question 2

What does ICF stand for?

Answer 2

IntraCellular Fluid

ICF refers to the fluid found inside cells.

Question 3

Define molarity.

Answer 3

Measure the number of moles of a solute per liter of solution

Molarity is commonly used in chemistry to express concentration.

Question 4

Define osmolarity.

Answer 4

Measures the concentration of osmotically active molecules per kilogram of solution

Osmolarity is important for understanding fluid movement across membranes.

Question 5

Define osmolality.

Answer 5

Measure the concentration of osmotically active molecules per kilogram of solution

Osmolality is often used interchangeably with osmolarity but is technically different.

Question 6

What does isotonic mean?

Answer 6

Solute concentration outside the cell is equal to the solute concentration inside the cell

Isotonic solutions do not cause net movement of water into or out of the cell.

Question 7

What does hypertonic mean?

Answer 7

Solute concentration outside the cell is higher than the solute concentration inside the cell

Hypertonic solutions cause water to exit the cell.

Question 8

What does hypotonic mean?

Answer 8

Solute concentration outside the cell is lower than the solute concentration inside the cell

Hypotonic solutions cause water to enter the cell.

Question 9

Define tonicity.

Answer 9

The relative solute concentrations of two environments separated by a semipermeable membrane

Tonicity is a key factor in determining how cells interact with their environment.

Question 10

What is anabolism?

Answer 10

The process of breaking down materials with enzymes

Anabolism is often associated with the synthesis of complex molecules.

Question 11

What is catabolism?

Answer 11

The process of creating materials with enzymes

Catabolism involves the breakdown of complex molecules into simpler ones.