Podcast Beta
Questions and Answers
Facilitated diffusion is the net passive movement of particles from a region of higher concentration to a region of lower concentration.
True
Osmosis is the diffusion of gases through a semipermeable membrane.
False
Active transport involves the movement of particles from a region of lower concentration to a region of higher concentration.
True
Simple diffusion occurs when particles move across a membrane through specific carrier proteins.
Signup and view all the answers
Facilitated diffusion allows multiple molecules to pass through a carrier protein at the same time.
Signup and view all the answers
Gas exchange for photosynthesis involves the movement of oxygen from the air to the leaf.
Signup and view all the answers
High temperatures increase the speed of facilitated diffusion.
Signup and view all the answers
Particles with small size, specific shape, and negative charge are more likely to be transported via facilitated diffusion.
Signup and view all the answers
Active transport is driven by an input of energy to move particles down their concentration gradient.
Signup and view all the answers
Diffusion stops once the concentration of substances is uniform throughout.
Signup and view all the answers
