Circulatory System Flashcards
1
Q
Red blood cells
A
erythrocytes
2
Q
shape of red blood cells
A
biconcave disk
3
Q
cell membrane close to ___
A
hemoglobin
4
Q
Lose nucleus to _______
A
make room for oxygen
5
Q
Increase surface area for __
A
gas diffusion
6
Q
Cannot perform
A
protein synthesis or cell division
7
Q
Hemoglobin
A
protein complex that binds oxygen
8
Q
Heme
A
red pigment contains iron, binds oxygen
9
Q
Globin
A
4-part protein complex, binds CO2
10
Q
Red blood cells are produced in
A
red bone marrow (adults)
11
Q
Erythropoietin hormone
A
produced by kidney/liver in response to oxygen deficiency
12
Q
Dietary needs
A
B-complex vitamins: B12 + folic acid for DNA synthesis
13
Q
Macrophages destroy
A
damaged RBC
14
Q
Hemoglobin broken down into__
A
amino acids + iron
15
Q
Average life span
A
100-120 days
