Table of contents

1. Introduction to Biochemistry4h 34m
2. Water3h 23m
3. Amino Acids8h 10m
4. Protein Structure10h 4m
5. Protein Techniques14h 5m
6. Enzymes and Enzyme Kinetics13h 38m
7. Enzyme Inhibition and Regulation 8h 42m
8. Protein Function 9h 41m
9. Carbohydrates7h 49m
10. Lipids5h 49m
11. Biological Membranes and Transport 6h 37m
12. Biosignaling9h 45m
Review 1: Nucleic Acids, Lipids, & Membranes2h 47m
Review 2: Biosignaling, Glycolysis, Gluconeogenesis, & PP-Pathway3h 12m
Review 3: Pyruvate & Fatty Acid Oxidation, Citric Acid Cycle, & Glycogen Metabolism2h 26m
Review 4: Amino Acid Oxidation, Oxidative Phosphorylation, & Photophosphorylation1h 48m

8. Protein Function

Hemoglobin Cooperativity

Biochemistry

8. Protein Function

Hemoglobin Cooperativity

Previous problemNext problem

Struggling with Biochemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Hemoglobin is a protein in your red blood cells that helps carry which of the following molecules?

Carbon dioxide ($CO_2$)

Glucose

Nitrogen ($N_2$)

Oxygen ($O_2$)

Previous problemNext problem

Verified step by step guidance

Understand the role of hemoglobin: Hemoglobin is a protein found in red blood cells that plays a critical role in transporting gases throughout the body.

Identify the molecule hemoglobin binds to: Hemoglobin has a high affinity for oxygen ($O_2$), which it binds to in the lungs and releases in tissues where oxygen is needed.

Clarify why hemoglobin does not bind to other molecules: Hemoglobin does not transport glucose, nitrogen ($N_2$), or carbon dioxide ($CO_2$) as its primary function. Carbon dioxide is primarily transported in the blood as bicarbonate ions ($HCO_3^-$), while glucose is transported by specific glucose transporters.

Explain the chemical interaction: Hemoglobin binds oxygen ($O_2$) through its iron-containing heme groups. Each hemoglobin molecule can bind up to four oxygen molecules, forming oxyhemoglobin.

Summarize the correct answer: The molecule hemoglobin helps carry is oxygen ($O_2$), which is essential for cellular respiration and energy production in the body.