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WorksheetsHaemoglobin AQA A-Level Biology
Total questions: 10
Worksheet time: 5mins
What is the chemical symbol of the iron containing haem group?
Fe+
Fe2+
Fe3+
Fe
How many polypeptide chains is a haemoglobin molecule made of?
1
2
3
4
Haemoglobin has a high affinity for oxygen in areas with a...
High partial pressure of carbon dioxide
High partial pressure of oxygen
Low partial pressure of oxygen
Low partial pressure of carbon dioxide
Dissociation of haemoglobin is its ability to...
Unload its oxygen to tissues
Become saturated with oxygen
Keep hold of its oxygen
All of the above...
What kind of protein structure does haemoglobin have?
Primary
Secondary
Tertiary
Quaternary
Foetal haemoglobin has a dissociation curve...
The same as the normal curve
To the left of the normal curve
To the right of the normal curve
Plateaus lower than the normal curve
An organism with a high metabolic rate has a dissociation curve...
At a lower partial pressure than the normal curve
The same as the normal curve
To the left of the normal curve
To the right of the normal curve
The Bohr effect is caused by...
An increase in carbon dioxide, increasing the concentration of H+ ions, increasing acidity
An decrease in carbon dioxide, increasing the concentration of H+ ions, increasing acidity
An increase in carbon dioxide, increasing the concentration of H+ ions, decreasing acidity
An decrease in carbon dioxide, decreasing the concentration of H+ ions, decreasing acidity
After the first molecule of oxygen binds to haemoglobin...
The tertiary structure changes, revealing less oxygen binding sites
The tertiary structure changes, revealing more oxygen binding sites
The tertiary structure stays the same
The tertiary structure changes, the protein is denatured
What is the advantage of the Bohr effect during intense exercise?
Haemoglobin dissociates its oxygen more readily, as its affinity for oxygen decreases, providing more oxygen for an increase in aerobic respiration in muscle cells
Haemoglobin dissociates its oxygen less readily, as its affinity for oxygen increases, providing less oxygen for an decrease in aerobic respiration in muscle cells
Haemoglobin dissociates its oxygen more readily, as its affinity for oxygen increases , providing more oxygen for an increase in aerobic respiration in muscle cells
Haemoglobin dissociates its oxygen less readily, as its affinity for oxygen decreases, providing more oxygen for an increase in aerobic respiration in muscle cells
