Today woke up at 5.30 am cause got cats quarrel x.x
Noisy cats
Learnt biology during science lesson x.x
I quite bad in biology not cause I don't understand the concepts, is due to the long names
So hard to remember all the names
Science notes about cells:
Cell
- Basic structural and functional unit of organisms
- Smallest unit
- Called as building block of life
Unicellular - Consisting of a single cell, including most bacteria
Multicellular - plants and animals
Humans contain about 10 trillion cells
Two types of cells:
- Eukaryotic (independent)
- Prokaryotic (often found in multi cellular organisms)
White cell
- Kills germ
Red cell
- Makes blood
Seven Main Categories of cell in human body:
Epithelium - Lines the inside and outside of organs/bodies.
Nervous - forms your nerves and brain.
Mesenchymal - forms the structure of your body (bones and such)
Lymphocytye - general term for the blood cells that protect you from illness.
Melanocytes - Kind of a blend of epithelium and nervous tissues. Give your skin pigment and protection from the Sun.
Neuroendocrine - Kind of a different blend of epithelium and nervous tissues. These give you the ability to create and secrete hormones.
