Cell Exchange of Materials

Question 1

substances transported by diffusion

Answer 1

passive process - water, oxygen, carbon dioxide, alcohol, fatty acids, potassium, calcium and sodium ions, lipids, soluble drugs

Question 2

substances transported by facilitated diffusion (carrier-mediated)

Answer 2

passive process - glucose, amino acids

Question 3

substances transported by active transport (carrier-mediated)

Answer 3

active process - certain ions, glucose and amino acids

Question 4

substances transported by endocytosis (vesicular transport)

Answer 4

active process - cholesterol, iron ions, sometime micro-organisms and cell debris

Question 5

substances transported by exocytosis (vesicular transport)

Answer 5

active process - secretions, such as mucus or digestive juices