Cells, tissues & organs
(B2 1)
- Created by: lavelle_001
- Created on: 12-05-14 18:48
View mindmap
- Cells, tissues and organs
- Mitrochondria - Where most of the energy is released during respiration
- Ribsomes - where protein synthesis takes place
- Bacteria
- v. small (can only be seen with electron microscope)
- cell membrane/ wall surround cytoplasm
- no nucleus so genetic material in cytoplasm
- when multipy the form a colony (can be seen by naked eye)
- Yeast
- single- celled organism
- have nucleus/ cytoplasm/ membrane
- Specialised cells
- cells specialised to carry out different functions
- if cells has ribsomes, making a lot of protein e.g. glands cells (produce enzymes)
- if tale, able to move e.g. sperm cells
- if has mitochondria needs a lot of energy e.g. sperm/ muscle cells
- Diffusion
- diffusion is the spreading out of particles
- net movement into/ out of cells depends on concentration of particles on each side of the cell membrane
- high -> low concentration
- the larger the concentration gradient, the faster the ROD
- e.g. the D of simple sugars/ amino acids frpm gut through cell membranes
- Organ system = a group of organs that perform a particular function
- During the development of multicellular organisms the cells differentiate
- Cells, tissues and organs
- Mitrochondria - Where most of the energy is released during respiration
- Ribsomes - where protein synthesis takes place
- Bacteria
- v. small (can only be seen with electron microscope)
- cell membrane/ wall surround cytoplasm
- no nucleus so genetic material in cytoplasm
- when multipy the form a colony (can be seen by naked eye)
- Yeast
- single- celled organism
- have nucleus/ cytoplasm/ membrane
- Specialised cells
- cells specialised to carry out different functions
- if cells has ribsomes, making a lot of protein e.g. glands cells (produce enzymes)
- if tale, able to move e.g. sperm cells
- if has mitochondria needs a lot of energy e.g. sperm/ muscle cells
- Diffusion
- diffusion is the spreading out of particles
- net movement into/ out of cells depends on concentration of particles on each side of the cell membrane
- high -> low concentration
- the larger the concentration gradient, the faster the ROD
- e.g. the D of simple sugars/ amino acids frpm gut through cell membranes
- Cells, tissues and organs
Comments
No comments have yet been made