diffusion
Diffusion tends to spread particles out. This topic is part of Biology within Science & Nature. This page currently draws on 8 supporting questions, with answers and bonus facts available below.
diffusion trivia questions
Diffusion is the movement of particles from high concentration to what?
Answer: Low concentration
Bonus fact: Diffusion tends to spread particles out.
Does simple diffusion require cellular energy?
Answer: No
Bonus fact: Simple diffusion is passive transport.
What gas moves from lung alveoli into blood mainly by diffusion?
Answer: Oxygen
Bonus fact: Oxygen diffuses down its concentration gradient.
What tiny structures in the lungs exchange gases with blood?
Answer: Alveoli
Bonus fact: Alveoli provide a large thin surface for diffusion.
Which tiny vessels allow exchange between blood and tissues?
Answer: Capillaries
Bonus fact: Thin capillary walls permit diffusion.
Why are capillary walls so thin?
Answer: To allow efficient diffusion
Bonus fact: Short diffusion distances speed exchange with tissues.
Why are studio walls often acoustically treated?
Answer: To control reflections and unwanted reverberation
Bonus fact: Absorption and diffusion improve recording accuracy.
Oxygen moves from alveoli into blood mainly by what process?
Answer: Diffusion
Bonus fact: It moves down a partial-pressure gradient.