The Blood

Question 1

what does blood transport

Answer 1

oxygen
nutrients
hormones
heat
clotting factors

Question 2

what are the three type of blood cells

Answer 2

1. erythrocytes (red blood cells)
2. Platelets (thrombocytes)
3. Leukocytes (white blood cells)

Question 3

what is the process of blood formation called

Answer 3

haemopoiesis

Question 4

what do erythrocytes do

Answer 4

to transport oxygen and carbon dioxide around the energy

Question 5

where are blood cells synthesised

Answer 5

mainly in the red bone marrow

Question 6

what substance is mainly in plasma

Answer 6

water (90-92%)

Question 7

first stage of haemopoiesis

Answer 7

blood stem cells gets divided into myeloid stem cell and lymphoid stem cell

Question 8

what does the myeloid stem cells gets divided into during haemopoiesis

Answer 8

red blood cells, platelets, myeloblast –> granulocytes

Question 9

what is the production of red blood cells called

Answer 9

erthyropoesis

Question 10

characteristics of red blood cells

Answer 10

they are biconcave discs, no nucleus, diameter about 7 micrometers

Question 11

how can a blood cell be called saturated

Answer 11

when all four oxygen binding sites on the haemoglobin molecule is full

Question 12

what is an antigen

Answer 12

a molecule that stimulates an immune response.

they are present in the cell which can detect foreign particles

Question 13

what is an antibody

Answer 13

a y shaped molecule which is produced by B - lymphocytes and its function is to recognise antigens, bind them and deactivate them

Question 14

how does blood groups link with your antigens

Answer 14

the inherited antigen determine the individuals blood group

they are genetically determined, they cannot be changed

Question 15

what types of blood groups are there

Answer 15

A, B, AB and O

Question 16

blood group O donation

Answer 16

people with blood group O can donate their blood to other people as it contains both anti A and B but cannot receive any blood as it doesn’t have any antigens on it.

Question 17

what is the scientific word for white blood cells

Answer 17

leukocytes

Question 18

function of white blood cells

Answer 18

defence and immunity

Question 19

what are the two main types of white blood cells

Answer 19

granulocytes
granulocytes

Question 20

main role of platelets

Answer 20

clotting in the body

Question 21

what happens to the individual when they have low platelets

Answer 21

if they have a cut, any bacteria or external variables can go into the blood easily. Additionally, they will keep on bleeding as it won’t clot which could lead to death

Question 22

life span of platelets

Answer 22

8-11 days which is required to control excessive bleeding