Exam BLY1A and BLY1B 1st March 2012: Venue Brittania Hotel (some learners will be at Clarendon.... check notice boards
Showing posts with label Workbook 01; Cells. Show all posts
Showing posts with label Workbook 01; Cells. Show all posts

Animal and Plant Cells

CELL STRUCTURE

You must be able to label the structure of animal and plant cells & Describe the function (job) of each part of the cell.




Specialised Cells

SPECIALISED CELLS

Each cell has a particular function (job) to perform. The structure of cells are designed to help them perform this function.

Diffusion and Osmosis

DIFFUSION

"The net movement of particles from a region of high concentration to a region of low concentration"

When the net movement is zero when the concentration on both sides is equal. That is to say, that if one particle moves in, one moves out!





Osmosis

OSMOSIS

"The movement of water molecules from a region of high water concentration to a region of lower water concentration" OR "The movement of water molecules from a dilute solution to a concentrated solution"