1 - STRUCTURES AND FUNCTIONS IN LIVING ORGANISMS

Cells - 

Animal cells - 
- Nucleus - contains genetic material and chromosomes
                 control's cells activities
                 surrounded by its own membrane
- Cell membrane - outer surface of the cell
                           controls substances that enter/exit
- Cytoplasm - gel-like substance
                     where most of the chemical reactions happen
                     enzymes to control reactions
- Mitochondria - carry out some of the respiration reactions
                        most energy from respiration is released here

Plant cells - 
- Nucleus - contains genetic material and chromosomes
                 control's cells activities
                 surrounded by its own membrane
- Cell membrane - outer surface of the cell
                           controls substances that enter/exit
- Cytoplasm - gel-like substance
                     where most of the chemical reactions happen
                     enzymes to control reactions
- Mitochondria - carry out some of the respiration reactions
                        most energy from respiration is released here
- Chloroplasts - where photosynthesis takes place
                       contain chlorophyll
- Cell wall - rigid structure made of cellulose
                 surrounds cell membrane
                 supports and strengthens cell
                 freely permeable
- Vacuole - contains cell sap (weak solution of sugars and salts)
                 supports cell
                 permanent  

Specialised cells - specialised to carry out particular functions, eg: red blood cells (carrying oxygen), white blood cells (defending against disease)  

1 - STRUCTURES AND FUNCTIONS IN LIVING ORGANISMS 

Characteristics of Living Organisms - 

1. Movement - eg: towards food, away from predators
2. Reproduction - for species to survive
3. Sensitivity - reacting to changes in their surroundings
4. Nutrition - energy, growth and repair, eg: proteins, fats, carbohydrates, vitamins, minerals
5. Excretion - waste products removed, eg: carbon dioxide, urine
6. Respiration - releases energy from food
7. Growth - developing

Hi! Okay, so all revision stuff will be in the page for each subject. Trying to work out a way to separate it all out more ~

Edit: The posts will be in the labels (as individual posts) as well as under the overall subject page (in one big document). Start revising!