week 3 membranes

Question 1

Epithelial cells

Answer 1

Polar
Apical (top), basal (bottom)
flat, cuboidal, columnar, simple, stratified
protection, absorption, secretion

Question 2

Muscle Cells

Answer 2

elongated cylindrical shape
movement

Question 3

Nerve cells

Answer 3

Transmit electrical signals
long and slender

Question 4

Fat cells

Answer 4

Spherical
energy storage, temperature regulation, organ cushioning

Question 5

Red blood calls

Answer 5

carry oxygen from lungs to the rest of the body
biconvave

Question 6

White blood cells

Answer 6

round or irregular shape
fight infection

Question 7

Simple squamous

Answer 7

1 layer
areas where membrane need to be permeable

Question 8

Stratified squamous

Answer 8

multiple layers

abrasion, top layers sloughed off (skin, mouth lining, oesophagus)

Question 9

Stratified columnar

Answer 9

Column-shaped multiple layers
secretion and protection

Question 10

Simple Columnar

Answer 10

Single layer columnar

ciliated - move mucus and other substances
non-ciliated - microvilli for absorption, gastrointestinal

Question 11

Pseudostratified columnar

Answer 11

Single layer, different heights
Secretion & Protection - respiration & Ear tract

Question 12

simple cuboidal

Answer 12

Single rows
Protection, active or passive movement

Question 13

Stratified cuboidal

Answer 13

Multiple layers
protection, limited absorption or secretion

Question 14

Homophilic adhesions

Answer 14

same molecule