Forces Acting Across Membranes

Question 1

Properties of cell membrane

Answer 1

Selectively permeable
Dynamic
Flexible
Insulators
Membrane embedded proteins

Question 2

Integral protein

Answer 2

Receptors
Transporters
Enzymes
Carrier proteins

Question 3

Peripheral proteins

Answer 3

Anchoring
Attach cells to ECM
Signalling function with cells

Question 4

Movement across cell membrane

Answer 4

Endocytosis and Exocytosis
Diffusion
Mediated transport
Osmosis

Question 5

Endocytosis

Answer 5

G coupled receptors

WBCs

Question 6

Exocytosis

Answer 6

Release of hormones and neurotransmitters

Question 7

Diffusion

Answer 7

Facilitated- carrier protein
Active- ATP
Normal

Question 8

Carrier mediated transport

Answer 8

movement against gradient using ATP

Question 9

Osmosis

Answer 9

Net movement of H20 from high (H20) to region of low (H20)

Question 10

Osmotic pressure

Answer 10

degree of force water is moving from one compartment to another

Question 11

Normal osmolarity

Answer 11

285-300 mOsmol/L

Question 12

Osmolarity describes

Answer 12

the number of particles of a solution

Question 13

The _____ of the cells depends on the _____ of _______

Answer 13

Volume and concentration and non-penetrating cells

Question 14

Iso-osmotic

Answer 14

same total of solute particles as normal ECF

Question 15

Hypo-osmotic

Answer 15

solutions with fewer solute particles

Question 16

Hyper-osmotic

Answer 16

solutions with greater number of total solute particles

Question 17

Tonicity

Answer 17

The number of non-penetrating particles in a solution, which determines cell volume

Question 18

Iso-tonic

Answer 18

solution has the same number of non-penetrating solute particles as normal ECF

Question 19

Hypotonic

Answer 19

Solution with fewer non-penetrating solute particles

Question 20

Hypertonic

Answer 20

Solutions with greater non-penetrating solute particles