cells and organisation

7 characteristics
1. movement
2. respiration
3. sensitivity
4. Growth
5. reproduction
6. excretion
7. nutrition
8. to remember Mrs Gren
in animal and plant cells
1. Cell membrane
  1. layer of fat and protein that surrounds and controls living cells
2. Cytoplasm
  1. Contents of cell where reactions occur-Mitochondria for respiration
3. Nucleus
  1. contains genetic material (DNA) that controls the cell - a red blood cell doesn't have one
Only plants have
1. cell wall
  1. from cellulose which supports the cell. It makes it fully permeable
2. Vacuole
  1. It is a space in the cell - surrounded by a membrane. Contains sugar - sap
3. Chloroplasts
  1. contains chlorophyll and enzymes for photosynthesis.
levels of organisation
1. organelle
  1. A struture within a cell
2. Tissue
  1. a group of cells with similar structures e. g muscle
3. Organ
  1. A structure of a group of different tissues e.g heart lungs
4. Organ system
  1. A group of organs e.g. reparatory,reproductive and digestion system
Specialised cells
1. ciliated cells
2. root hair cells
3. red blood cells
4. Muscles cells

Resource summary

	Created by daisyspurrier almost 11 years ago