7.2 & 7.3Describe the Structure and
function of Erythrocytes, Leukocytes
and platelets- Outline the Erythrocyte
production
What is the function of Erythrocytes (RBC) - answer- to carry oxygen and carbon
dioxide
Describe the shape of an Erythrocyte - answer- biconcave disk
- shape occurs when the nucleus is lost
- gives maximum surface area for gas exchange
- gives flexibility for navigating through small spaces
- allows some shape change in fluctuating concentrations
What is a saturated Hemoglobin? - answerjust means hemoglobin is carrying 4 oxygen
molecules
What is the composition of and Erythrocyte - answer- the cell membrane surrounds a
red pigment called hemoglobin
- hemoglobin has 4 heme groups and 4 globins
- there is one iron molecule for each heme group meaning 4 in one cell
What do the iron molecules in Hemoglobin do? - answerthey carry oxygen
Why does blood become bright red? - answerhappens when oxygen is attached, which
is called oxyhemoglobin
What does the globin do? - answerthe globin is a protein which carries CO2
How is O2 measured? - answerBy a percentage saturation or PO2
Describe the Erythrocyte life cycle - answer- born in bone marrow
- die in spleen, liver, or bone marrow
- lives for around 120 days
- hydro sliding around the circulation
Describe the Erythrocyte Production - answerwhen levels of oxygen are low in the
blood, it causes the kidneys to release erythropoietin (EPO).
Erythropoietin targets red bone marrow
The red bone marrow then increases the red blood cell production.
function of Erythrocytes, Leukocytes
and platelets- Outline the Erythrocyte
production
What is the function of Erythrocytes (RBC) - answer- to carry oxygen and carbon
dioxide
Describe the shape of an Erythrocyte - answer- biconcave disk
- shape occurs when the nucleus is lost
- gives maximum surface area for gas exchange
- gives flexibility for navigating through small spaces
- allows some shape change in fluctuating concentrations
What is a saturated Hemoglobin? - answerjust means hemoglobin is carrying 4 oxygen
molecules
What is the composition of and Erythrocyte - answer- the cell membrane surrounds a
red pigment called hemoglobin
- hemoglobin has 4 heme groups and 4 globins
- there is one iron molecule for each heme group meaning 4 in one cell
What do the iron molecules in Hemoglobin do? - answerthey carry oxygen
Why does blood become bright red? - answerhappens when oxygen is attached, which
is called oxyhemoglobin
What does the globin do? - answerthe globin is a protein which carries CO2
How is O2 measured? - answerBy a percentage saturation or PO2
Describe the Erythrocyte life cycle - answer- born in bone marrow
- die in spleen, liver, or bone marrow
- lives for around 120 days
- hydro sliding around the circulation
Describe the Erythrocyte Production - answerwhen levels of oxygen are low in the
blood, it causes the kidneys to release erythropoietin (EPO).
Erythropoietin targets red bone marrow
The red bone marrow then increases the red blood cell production.
