Intro to cells
The first principle of cell theory
Every living thing is made up of one or more cells
The powerhouse of the cell responsible for cellular respiration
Mitochondria
Organelle labelled A
Cell membrane
Found in all cells. It controls what goes in and out of the cell
Cell membrane
This organelle is unique to plant cells and is responsible for photosynthesis
Chloroplasts
The third principle of cell theory
Cells come only from other living things
Liquid inside the cell that holds the cell organelles
Cytoplasm
Organelle labelled C
Mitochondria
boss of the cell. It holds the DNA (instructions for making proteins)
Nucleus
Animal cells have this organelle that helps in cell division; plant cells do not
Centrioles
The second principle of cell theory
Cells carry out the functions needed to support life
Responsible for making proteins in the cell
Ribosome
Organelle labelled B
Nucleolus
Responsible for cleaning up the cell, by getting rid of waste
Lysosome
This gel-like substance fills both cell types, suspending the organelles
The average number of cells humans have
37 trillion
The storage structure. Stores food/ water/nutrients
Vacuole
Organelle labelled E
Endoplasmic reticulum
center of the nucleus where ribosomes are made
Nucleolus
This is the function of the cell membrane in both cell types
Controlling what enters and leaves the cell
The size of an average human cell
10 micrometres
Responsible for inspecting and packaging proteins before they are shipped out to their target areas
Golgi apparatus
Organelle labelled D
Golgi apparatus
a network of membranes within a cell that transports proteins and lipids
Endoplasmic reticulum
This rigid outer layer provides structure and protection for plant cells, but is absent in animal cells
Cell wall