Johan Dahlin
e1f922c195
All checks were successful
Deploy Quartz site to GitHub Pages / build (push) Successful in 1m47s
27 lines
787 B
Markdown
27 lines
787 B
Markdown
---
|
|
date: 2025-02-01
|
|
tags:
|
|
- biokemi
|
|
- provfråga
|
|
- hemoglobin
|
|
---
|
|
|
|
**Uppgift**
|
|
A) Name two allosteric regulators of oxygen binding to hemoglobin.
|
|
B) Explain an outcome for each regulator.
|
|
(Max 100 words.) Please answer this question in English. (4p)
|
|
|
|
**Answer**
|
|
```spoiler-block
|
|
|
|
a) O₂ and CO₂
|
|
b)
|
|
O₂:
|
|
Hemoglobin has four subunits that bind to O₂ through cooperativity, meaning that if one subunit binds to an O₂, the other subunits' affinity for O₂ will increase, leading to all subunits binding to O₂. When O₂ binds, the state goes from T-state (deoxy; tense) to R-state (oxy; relaxed).
|
|
|
|
CO₂:
|
|
When CO₂ binds to hemoglobin, the hemoglobin's affinity to oxygen decreases, leading to a stabilization of the T-state instead.
|
|
|
|
```
|
|
Totalpoäng: 4
|