Lesson 4 Cells

  The Cell Is an Open System

Cells interact with their environment to get food, get rid of waste, and exchange energy and matter.


A4.1 Some organelles we studied
The different organelles within a cell help the cell to perform the basic life functions, as well as being an open system. The vacuoles and vesicles help get food, waste, and materials into and out of the cell through the cell membrane. The nucleus, ER, Golgi apparatus, ribosomes, and lysosomes help to create or break down the material being exchanged; and the mitochondria create the energy needed for all these functions.

In the next two lessons, we will look even closer at the structure of the cell and how it performs the basic life functions.

  Interactive Activity


Organelle Cell Model © CELLS alive.com https://quick.adlc.ca/cells-alive


Explore this interactive to review the different organelles in both plants and animal cells and their functions. This interactive contains a few organelles that we did not cover such as microtubules and centrioles.

Begin by clicking on “Animal cell” or “Plant Cell” under the interactive window. Once you have chosen a type of cell, you can either hover over an organelle to see the name or hover over the name to see the location. To see more information about that organelle, click on the name or the organelle.