Transport in Cells (OCR GCSE Biology A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
What effect does a steeper concentration gradient have on diffusion rate?
What effect does a steeper concentration gradient have on diffusion rate?
It increases diffusion rate
How does higher temperature affect the rate of diffusion?
How does higher temperature affect the rate of diffusion?
It increases diffusion rate
What does higher temperature increase in particles that affects diffusion?
What does higher temperature increase in particles that affects diffusion?
Kinetic energy
What is the effect of a larger surface area on diffusion rate?
What is the effect of a larger surface area on diffusion rate?
Increases diffusion rate
Which structures have large surface areas to facilitate diffusion?
Which structures have large surface areas to facilitate diffusion?
Alveoli and villi
How does diffusion distance affect the rate of diffusion?
How does diffusion distance affect the rate of diffusion?
Shorter distances increase rate
Why are cells and tissues often thin in biological systems?
Why are cells and tissues often thin in biological systems?
To reduce diffusion distance
Which molecules diffuse faster?
Which molecules diffuse faster?
Smaller molecules
Which molecules diffuse more easily through cell membranes?
Which molecules diffuse more easily through cell membranes?
Nonpolar molecules
Why does oxygen diffuse rapidly from alveoli into blood?
Why does oxygen diffuse rapidly from alveoli into blood?
Due to steep concentration gradient
What features of villi maximize diffusion rate?
What features of villi maximize diffusion rate?
Large surface area and thin walls