Gas Exchange : O2 transport

Question 1

What does O2 bind to in RBC?

Answer 1

Hemoglobin

Question 2

What can 1 Hb molecule bind to? and up to how many?

Answer 2

each Hemoglobin molecule can bind to 4 O2 molecules

Question 3

What is it called when O2 is loaded on Hb? and what color is it?

What is it called when O2 is unloaded on Hb? and what color is it?

Answer 3

-When O2 is loaded ion Hb ts called “oxyhemoglobin” and its red

-When O2 is unloaded on Hb its called “deoxyhemoglobin” and its purple

Question 4

______ % of O2 is carried by _____ in RBC, the remiaing 5% is dissolved into a solution called _____

Answer 4

-95%
-Hb
-PO2

Question 5

what induces O2 loading in muscles?

*3 things

Answer 5

2,3-bisphosphoglycerate (2,3-BPG)
H+
CO2

Question 6

what happens with O2 transport in muscles?

Answer 6

o2 is unloaded on myoglobin (mb) and used for mitochondrial respiration