Biology exam 2022: diffusion, osmosis, experiments + active transport

Tissue fluid

________ surrounds the cells in the body- its just water with oxygen, glucose and other things dissolved in it.

thistle funnel

Water should be drawn through the visking tubing by osmosis and this will force the solution up the glass tube (the ________ has an open bottom where the visking tubing goes)

Happens

________ in both liquids and gases- the particles there are free to move about randomly.

Diffusion

________ is the gradual movement of particles from places where there are lots to where there are fewer.

Substances

________ can move in and out of cells via diffusion, active transport, and osmosis.

Water molecules

________ pass both ways through the membrane during osmosis.

Active transport

________ allows nutrients to be taken into the blood, despite the fact that the concentration gradient is the wrong way.

Definition

________: ‘ Active Transport is the movement of particles against a concentration (i.e: from a lower concentration to a higher concentration) using energy released during respiration.

Technical Definition

________: the ‘ net movement of particles from an area of high concentration to an area of low concentration.

Technical definition

________: ‘ Osmosis is the net movement of water molecules across a partially permeable membrane from a high concentration of water to a low concentration of water.

tissue fluid

The ________ will usually have a different concentration to the fluid inside a cell.

Active transport

________ is used to move substances in and out of cells.