3. Organisms Exchange Substances with their Environment: Definitions (AQA A-Level Biology): Quizzes
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Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the main function of alveoli in the lungs?
What is the main function of alveoli in the lungs?
Efficient gas exchange with bloodstream
How does an antiporter differ from a symporter?
How does an antiporter differ from a symporter?
Antiporter moves molecules in opposing ways
Which blood vessel type transports blood away from the heart under high pressure?
Which blood vessel type transports blood away from the heart under high pressure?
Arteries
Which heart chamber receives deoxygenated blood from the vena cava?
Which heart chamber receives deoxygenated blood from the vena cava?
Right atrium
Where do endopeptidases break peptide bonds in polypeptides?
Where do endopeptidases break peptide bonds in polypeptides?
At internal positions within the chain
What effect does increased carbon dioxide have on haemoglobin?
What effect does increased carbon dioxide have on haemoglobin?
Reduces oxygen-binding affinity
What does xylem tissue transport in plants?
What does xylem tissue transport in plants?
Water
What controls the opening and closing of stomata?
What controls the opening and closing of stomata?
Guard cells
What is the function of tracheoles in insects?
What is the function of tracheoles in insects?
Transport gases directly to cells
How do bile salts assist in lipid digestion?
How do bile salts assist in lipid digestion?
Emulsify fats to increase surface area