Appearance & Classification of Epithelial Tissues W2l1/2

Question 1

What does fixation do?

Answer 1

Prevents degradation/putrefaction of tissue

Question 2

What are two methods and examples of fixation?

Answer 2

-chemical (formaldehyde)
-physical (freezing)

Question 3

Two types of dyes used in staining?

Answer 3

-Acid (eosin)
-basic (haemotoxylin)

Question 4

What are the 2 types of epithelial cell?

Answer 4

-covering
-glandular

Question 5

What are the 3 ways to classify covering epithelial?

Answer 5

-no of layers
-shape
-specialisation

Question 6

What is a simple epithelial tissue?

Answer 6

One cell thick

Question 7

What is stratified epithelial tissue?

Answer 7

Multiple layers

Question 8

What is columnar epithelial tissue?

Answer 8

When it is taller that it is wide

Question 9

What is squamous epithelial tissue?

Answer 9

Really thin and flat used on exchange surfaces

Question 10

Two types of specialised epithelial tissue?

Answer 10

-cilliated
-keratinised

Question 11

What is cell polarity?

Answer 11

The asymmetry observed in cell shape, structure and organisation of components

Question 12

What does epithelial tissue sit on?

Answer 12

Basement membrane

Question 13

What is basement membrane made of?

Answer 13

Connective tissue

Question 14

What is bigger cilia or microvilli?

Answer 14

Cillia are 10x bigger

Question 15

What is more motile cilia or microvilli

Answer 15

Cillia

Question 16

Which are more widespread cilia or microvilli

Answer 16

Microvilli (which is why it’s isn’t used to classify as common feature)