Prokaryotic vs Eukaryotic Cells
There are two types of cells: prokaryotic and eukaryotic. Biology 12 focuses mostly on eukaryotic cells. There are many differences between the two. For biology 12 purposes, all you need to know is that prokaryotes have no nucleus and no other membrane bound organelles (organelles will be discussed in the next section). They are more primitive than eukaryotic cells. You can think of a prokaryote as "soup within a bag within a box". This is because its liquid cytoplasm is enclosed within a soft cell membrane, which is surrounded by a tougher cell wall.
Animal vs Plant CellsBoth plants and animals have eukaryotic cells. However, plant and animal cells differ greatly in structure and therefore we must know the key differences. The easiest way is to look for a cell wall. Plant cells have a rigid cell wall while animal cells do not. Another way is to look at the vacuoles, which are large in plant cells and small in animal cells. Also note that plant cells have chloroplasts for photosynthesis, which animal cells lack. Of course, these organelles will be discussed in detail later. Click on the animal and plant cells below to check out their differences.
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The Cell Theory
The cell theory is made of three parts:
1. All living organisms are made up of cells
2. The cell is the basic unit of life
3. All cells come from other pre-existing cells
1. All living organisms are made up of cells
2. The cell is the basic unit of life
3. All cells come from other pre-existing cells