WJEC & Eduqas Notes
GAS TRANSPORT
WJEC Unit 2
Eduqas Component 3 (A-Level Only)
1
STUDY CHECKLIST AND ASSESSMENT OBJECTIVES
Instructions
Regular revision throughout the year is essential. It’s vital you keep a track of what you
,understand and what you don’t understand. This booklet is designed to help you do this.
Use the following key to note how well you understand the work after your revision. Put the
letter R, A or G in the table. If you place an R or an A then you should make a note of what
you are struggling with and the end of this book under the relevant section and seek help
with this.
Key
R = Red. I am not confident about my knowledge and understanding
A = Amber. I am fairly confident about my knowledge and understanding
G = green. I am very confident about my knowledge and understanding
22
The following points are what you need to know, revise an
answer questions on.
Gas Transport
1. Can you identify red and white blood cells from a microscope image?
2. Can you describe the adaptations of a red blood cell for oxygen transport?
3. Can you interpret oxygen dissociation cures?
4. Can you explain the Bohr shift and identify where a cure would be placed on an oxygen dissociation g
showing the Bohr shift?
5. Can you explain the biological important of the Bohr shift?
, 6. Can you explain the importance of the increased affinity of haemoglobin for oxygen under environme
with low partial pressures of oxygen?
7. Can you state the three ways in which carbon dioxide is transport in the blood?
8. Can you describe and explain the chemistry of the transport of carbon dioxide and the Bohr shift?
9. Can you explain the importance of the chloride shift?
10. Can you apply your knowledge and understanding of gas transport to unfamiliar scenarios?
Assessment Objective Description
AO1 Demonstrate knowledge and understanding of scientific ideas, processes, te
AO2 Apply knowledge and understanding of scientific ideas, processes, technique
• In a theoretical context
• In a practical context
• When handling qualitative data
• When handling quantitative data
AO3 Analyse, interpret and evaluate scientific information, ideas and evidence, in
to: • Make judgments and reach conclusions
• Develop and refine practical design and procedures
33
WORD BANK
Below is a list of some key words and phrases you will need to learn and understand in this gas transport
topic.
1. Affinity
2. Bohr shift
3. Carbaminohaemoglobin
4. Carbonic anhydrase
5. Chloride shift
6. Haemoglobin
7. Haemoglobonic acid
8. High affinity
9. Hydrogen ion
10. Hydrogen carbonate ion
11. Low affinity
12. Oxygen dissociation
13. Percentage saturation
14. Lugworm
GAS TRANSPORT
WJEC Unit 2
Eduqas Component 3 (A-Level Only)
1
STUDY CHECKLIST AND ASSESSMENT OBJECTIVES
Instructions
Regular revision throughout the year is essential. It’s vital you keep a track of what you
,understand and what you don’t understand. This booklet is designed to help you do this.
Use the following key to note how well you understand the work after your revision. Put the
letter R, A or G in the table. If you place an R or an A then you should make a note of what
you are struggling with and the end of this book under the relevant section and seek help
with this.
Key
R = Red. I am not confident about my knowledge and understanding
A = Amber. I am fairly confident about my knowledge and understanding
G = green. I am very confident about my knowledge and understanding
22
The following points are what you need to know, revise an
answer questions on.
Gas Transport
1. Can you identify red and white blood cells from a microscope image?
2. Can you describe the adaptations of a red blood cell for oxygen transport?
3. Can you interpret oxygen dissociation cures?
4. Can you explain the Bohr shift and identify where a cure would be placed on an oxygen dissociation g
showing the Bohr shift?
5. Can you explain the biological important of the Bohr shift?
, 6. Can you explain the importance of the increased affinity of haemoglobin for oxygen under environme
with low partial pressures of oxygen?
7. Can you state the three ways in which carbon dioxide is transport in the blood?
8. Can you describe and explain the chemistry of the transport of carbon dioxide and the Bohr shift?
9. Can you explain the importance of the chloride shift?
10. Can you apply your knowledge and understanding of gas transport to unfamiliar scenarios?
Assessment Objective Description
AO1 Demonstrate knowledge and understanding of scientific ideas, processes, te
AO2 Apply knowledge and understanding of scientific ideas, processes, technique
• In a theoretical context
• In a practical context
• When handling qualitative data
• When handling quantitative data
AO3 Analyse, interpret and evaluate scientific information, ideas and evidence, in
to: • Make judgments and reach conclusions
• Develop and refine practical design and procedures
33
WORD BANK
Below is a list of some key words and phrases you will need to learn and understand in this gas transport
topic.
1. Affinity
2. Bohr shift
3. Carbaminohaemoglobin
4. Carbonic anhydrase
5. Chloride shift
6. Haemoglobin
7. Haemoglobonic acid
8. High affinity
9. Hydrogen ion
10. Hydrogen carbonate ion
11. Low affinity
12. Oxygen dissociation
13. Percentage saturation
14. Lugworm
