Co-transport (AQA A-Level Biology): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is co-transport?
What is co-transport?
Movement of two substances via one carrier protein
What is co-transport also known as?
What is co-transport also known as?
Secondary active transport
Which substances typically move together during co-transport?
Which substances typically move together during co-transport?
Sodium ions and glucose
Why is co-transport called 'secondary' active transport?
Why is co-transport called 'secondary' active transport?
It uses energy from gradients not ATP
What does the sodium-potassium pump do in co-transport?
What does the sodium-potassium pump do in co-transport?
Transports sodium out creating gradient
What feature do co-transport proteins have?
What feature do co-transport proteins have?
Binding sites for sodium and nutrient
During co-transport, which substance moves down its concentration gradient?
During co-transport, which substance moves down its concentration gradient?
Sodium ions
What is the approximate length of microvilli?
What is the approximate length of microvilli?
Why is co-transport necessary for glucose absorption?
Why is co-transport necessary for glucose absorption?
Diffusion too slow for energy demands
How do glucose molecules move from epithelial cells into the bloodstream?
How do glucose molecules move from epithelial cells into the bloodstream?
Facilitated diffusion