module 2 (p2)

Question 1

what is squamous epithelium’s adaptations

Answer 1

thin due to the flat cells that make it up, one cell thick

Question 2

what forms the lining of the lungs

Answer 2

squamous epithelium

Question 3

describe the function and structure of cartilage

Answer 3

connective tissue containing fibres of elastin and collagen

Question 4

what prevents the ends of bones rubbing together

Answer 4

cartilage

is firm and flexible, made of chondrocytes embedded in extracellular matrix

Question 5

what can differentiated stem cells not do

Answer 5

stuck in G0 phase

lose ability to divide

Question 6

what causes aging

Answer 6

stem cells don’t divide fast enough, tissue isn’t efficiently replaced

Question 7

what causes tumour

Answer 7

uncontrolled cell division

leads to cancer

Question 8

define pluripotent

Answer 8

forms all tissue types, can’t form an organism

( in early embryos)

Question 9

define totipotent

Answer 9

differentiate into any type of cell

Question 10

define multipotent

Answer 10

forms range of cells within certain type of tissue

Question 11

what is the lifespan of a erythrocyte

Answer 11

120 days

stem cell colonies produce them to keep up with demand

Question 12

what is the lifespan of a neutrophil

Answer 12

6 hours

Question 13

define blastocyst

Answer 13

mass of cells

Question 14

what is the cambium

Answer 14

composed of stem cells