Transport

Question 1

types of passive transport

Answer 1

• diffusion
• facilitated diffusion
• osmosis
• filtration
• NO ENERGY REQUIRED

Question 2

facilitated diffusion

Answer 2

• diffusion of larger molecules across a membrane using carrier proteins
• ex) glucose using protein

Question 3

osmosis

Answer 3

• movement of molecules through a semipermeable membrane from less concentrated to higher concentrated
• ex) absorption of water by small intestine

Question 4

diffusion

Answer 4

• movement of molecules from region of high concentration to low concentration
• ex) o2 from blood cells to muscles

Question 5

filtration

Answer 5

• movement of molecules + water across a membrane using cardiovascular pressure
• ex) waste products filtered out of blood into tubules of kidney to be eliminated in urine

Question 6

active transport

Answer 6

• from low to high concentration

- energy required! with ATP

Question 7

types of active transport

Answer 7

• sodium-potassium pump
• exocytosis
• endocytosis

Question 8

sodium-potassium pump

Answer 8

• pump of sodium + potassium ions in opposite direction across a membrane using a chemical energy
• ex) electrical charge in nerve + muscle cells

Question 9

exocytosis

Answer 9

• expelling of molecules out of a cell using chemical energy

- ex) secretion of enzymes

Question 10

endocytosis

Answer 10

• engulfing of molecules by a cell using chemical energy

- ex) leukocytes consuming bacteria