Passive Transport

Question 1

Passive Transport:

Answer 1

Without use of energy (ATP)

Question 2

Types of Passive Transport:

Answer 2

Diffusion, facilitated diffusion, osmosis

Question 3

Diffusion

Answer 3

Movement of a substance from a region of high concentration to low concentration

Question 4

Concentration Gradient

Answer 4

When there is a difference in concentration between two regions

Question 5

Equilibrium

Answer 5

When all the particles are distrusted evenly throughout the system (through diffusion)

Question 6

Factors Increasing Rate of Diffusion:

Answer 6

• Concentration of gradient is higher
• Heat is applied
• Molecules are smaller
• Movement occurs through a gaseous medium

Question 7

Facilitated diffusion:

Answer 7

Movement of a substance from high concentration to low concentration through the help of a protein channel.

Question 8

Osmosis

Answer 8

Movement of water from an area of high concentration to an area of low concentration across a semi-permeable membrane
- the movement of water from a region of lower concentration (higher water concentration) to a region of higher solute concentration (lower water concentration)

Question 9

3 Types of Osmosis

Answer 9

Isotonic, Hypotonic, Hypertonic

Question 10

Isotonic

Answer 10

• Surrounding fluid and internal fluid are of equal concentration
• Water diffuses equally in both directions

Question 11

Hypotonic

Answer 11

• Surrounding fluid of cell becomes has higher water concentration than internal cell fluid
• Net movement of water INTO the cell

Question 12

Hypertonic

Answer 12

• Surrounding fluid of cell has lower concentration than internal cell fluid
• Net movement of water OUT OF the cell