Topic 1: 1

Question 1

H2O Plasma

Answer 1

8%

extracellular component of blood

Question 2

H2O intracellular fluids

Answer 2

64%
metabolic processes
buffer

Question 3

H2O minor components

Answer 3

3%

trancellular fluids secreted by specialised cells and found in spaces surrounded by cells

Question 4

H20 interstitial fluids

Answer 4

25%

bathes non blood cells

Question 5

extracellular fluid components

Answer 5

High Na+ and Cl-

Low K+, Ca++ and Mg++

Question 6

intracellular fluid components

Answer 6

High K+, Mg+ HPO-4 and proteins

Low Na+ and very low Ca++

Question 7

organelle vs cell membrane

Answer 7

greater fluidity (less cholesterol)
thinner (4-5nm)
lower glycolipid

Question 8

SER

Answer 8

production of secretory products
called sarcoplasmic reticulum in muscle
stores calcium ions in muscle

Question 9

3 networks of golgi

Answer 9

cis
medial
trans

Question 10

% of mitochondria surface closely apposed to ER membranes

Answer 10

5-20

MAMs

Question 11

lysosomes

Answer 11

contain enzymes for breakdown of material

Highly acidic- 2.5pH

Question 12

peroxisomes

Answer 12

contain enzymes

using oxygen, reduce damaging effects of alcohol

Question 13

microfilaments

Answer 13

mainly actin 
5-8nm 
maintains cell shape and any changes 
cell division and motility 
muscle contraction

Question 14

intermediate filaments

Answer 14

family of related proteins
8-10nm
structural support
anchor nucleus and other organelles

Question 15

microtubules

Answer 15

mainly tubulin 
12-15nm 
maintain cell shape 
movement and motility 
chromosome and organelle movement

Question 16

tight junctions AKA

Answer 16

Occluding junctions

Question 17

tight junctions

Answer 17

seal gaps between cells to make a sealed sheet

Question 18

desmosomes

Answer 18

link cells without sealing them into sheets

Question 19

desmosomes AKA

Answer 19

anchoring junctions

Question 20

gap junctions

Answer 20

connect the insides of two cells using protein channel

Question 21

gap junctions AKA

Answer 21

communicating junction

Question 22

viscous

Answer 22

saturated hydrocarbon tails

Question 23

fluidity

Answer 23

unsaturated hydrocarbon tails with kinks

Question 24

GA- Constitutive secretory pathway

Answer 24

unregulated by external factors

Question 25

GA- regulated secretory pathway

Answer 25

regulated by external factors

Question 26

MT- Anterograde transport

Answer 26

away from cell body

Question 27

MT- Retrograde transport

Answer 27

towards the cell body