The movement of water across a partially permeable membrane from a higher to a lower water potential

Which feature is unique to active transport?

It moves substances against the gradient using energy from respiration

A plant cell is placed in pure water. What happens?

It becomes turgid as water enters by osmosis

Shrink as water leaves by osmosis

A steeper concentration gradient

Active transport requires energy from respiration but diffusion and osmosis do not

By diffusion, because oxygen is more concentrated in the alveolus than in the blood

A large surface area, thin walls and a good blood supply

Lets water and small molecules through but not larger ones

Particles gain energy and move faster

A piece of potato becoming firm after soaking in pure water

14questions. Pick an answer and you'll see why right away.

Which process moves particles from a high to a low concentration without using energy?
What is osmosis?
Which feature is unique to active transport?
A plant cell is placed in pure water. What happens?
An animal cell placed in a concentrated salt solution will most likely:
What is the term for a plant cell whose membrane has pulled away from the cell wall after losing a lot of water?
Which of these increases the rate of diffusion?
Root hair cells absorb mineral ions from the soil even when the soil has a lower ion concentration. Which process is this?
Which statement about energy is correct?
Why does oxygen move from the air in an alveolus into the blood?
Which adaptation makes an exchange surface efficient for diffusion?
A partially permeable membrane is one that:
Why is a higher temperature linked to a faster rate of diffusion?
Which everyday example involves osmosis?