Lab Practical 1

Question 1

Lymphocyte functions

Answer 1

produce anitbodies, makes allergic reactions, tumor control, graft rejection, immune system regulation

Question 2

Monocyte function

Answer 2

phagocytic, becomes macrophage

Question 3

Eosinophil function

Answer 3

reduce inflammation, attack worm parasites

Question 4

Basophil function

Answer 4

promotes inflammation, prevents clotting

Question 5

Neutrophil function

Answer 5

phagocytic

Question 6

Platelet function

Answer 6

blood clotting

Question 7

Type A blood

Answer 7

antigen: A
antibody: anti-B
receive: type A or O

Question 8

Type B blood

Answer 8

antigen: B
antibody: anti-A
receive: type B or O

Question 9

Type AB blood

Answer 9

antigens: A and B
antibody: none
receive: A, B, AB, O

Question 10

Type O blood

Answer 10

antigen: none
antibody: anti-A and anti-B
receive: O

Question 11

What causes clumping & lysis when wrong blood types are mixed?

Answer 11

Incorrect antibodies

Question 12

Where are antibodies in blood?

Answer 12

Plasma

Question 13

Where are antigens in blood?

Answer 13

RBC’s/erythrocytes

Question 14

Rh antigen presence

Answer 14

Either positive or negative

Question 15

Rh+ blood

Answer 15

RR or Rr genotype
Rh antigens on RBC
no anti-Rh antibodies

Question 16

Rh- blood

Answer 16

no Rh antigens
no anti-Rh antibodies

Question 17

Benedict test

Answer 17

glucose test
positive or negative

Question 18

Biuret test

Answer 18

protein test
positive or negative

Question 19

Sulkwitch test

Answer 19

calcium test
positive or negative

Question 20

How to calculate hematocrit test?

Answer 20

length of RBC/total length x 100%
< 40% –> hypotonic
40-50% –> isotonic
> 50% –> hypertonic

Question 21

How to visually determine RBC state?

Answer 21

cloudy = RBC intact
clear = RBC lysed (hypotonic solution)