plant and animal cells paper 1&2

generalised structures 

Animal Cell

• cell membrane- controls what enters and leaves the cell e.g. Oxygen, carbon dioxide, glucose 
• Nucleus- a large structure that contains genes that control the activities of the cell
• cytoplasm- jelly-like substance that fills the cell- many reactions take place here
• Mitochondria (single: mitochondrion:)- tiny structures where respiration  takes place, releasing energy for cell processes
• ribosomes(present in the cytoplasm but not visible at this size): where proteins are made(protein synthesis

Plant cell

• cell wall
• central vacuole
• chloroplasts

different kinds of cell 

Bacterial cells

Bacteria have a simple cell structure. like animal and plant cells, they have a cell membrane surrounding the cytoplasm. However, they do not have a nucleus. These are called prokaryotic cells.

Microscopes and magnnification 

A light microscope uses light to magnify objects. the greatest possible magnification using a light microscope is about x2000

A electron microscope uses electrons to view an object. This makes it…