Biology Chapter 1

Chapter 1: Life Processes

The characteristics of living organisms:

• Movement
• Respiration
• Sensitivity
• Growth
• Reproduction
• Excretion
• Nutrition

They can be rembered as MRS GREN

Cell structures:

All living organsims are made of cells. Animal cells that are not specialised have a cell membrane, cytoplasm,neucleus and a mitochondria. A plant cell that is not specialised has a cell wall made of cellulose,a vacuole and chloroplasts. During a metabolic reaction enzymes at as biological catylysts which means they speed the…