Life

• All organisms are composed of cells
• Whether an organism is Unicellular or Multicellular they have cells that they need in order to stay alive.
• All cells are composed of chemicals
• Cells have mainly water, but also proteins and lipids.
• The most important chemical in multicellular organisms is DNA = the genetic material
• Organisms get energy by breaking down materials
• The energy is used to grow and develop as well as repair parts
• Stimuli occur when an organism respond/reacts to their surroundings
• Can be either to light, sound or other factors
• For every action is a possible reaction in all organisms
• Growth is the process of becoming larger
• Development is the process of change that produces a more complex organism
• All living organisms have the ability to create offspring similar to the parents
• Asexual Reproduction

  one parent creating a similar offspring
• Sexual Reproduction

  Involves two parents combining the genetic material (DNA) to create the new organism that closely resembles the parents
• Food is the main source of energy for all living things
• Some organisms are autotrophs which make their own food and therefore create their own energy
• Heterotrophs obtain energy from other organisms
• All organisms need water to survive
• Water is necessary for the chemicals and substances the organisms need to live, grow and reproduce
• A place to live allows an organism to live longer and safely
• Living Space provides shelter from storms, shelter from predators as well as a place for rest which allows the organism protection and the ability to live longest
• Homeostasis is the ability for or to maintain a stable internal condition even when the conditions in their surroundings change significantly
• Homeostasis allows the cells to function properly
• Each organism has the ability to get and use energy, remove waste and reproduce as it is necessary in order to survive
• Cell theory

  Widely accepted explanation of the relationship between cells and living things
• Microscopes allowed us to make the discovery of cell theory
• Cell theory disproves the idea of Spontaneous Generation
• Cells are the basic unit of structure and function in all living things
• All cells are produced by other cells
• Eukaryotic cells 


  organisms whose cells have a nucleus
• Prokaryotic cells


  Small, single - celled organisms that have a relatively simple structure
• Homeostasis 


  An organism’s ability to maintain stable internal conditions regardless of external conditions
• Cellular respiration 


  a series of chemical reactions that allows cells to break down glucose molecules in the presence of oxygen, releasing energy
• Photosynthesis 


  A series of chemical reactions that converts light energy, water and carbon dioxide into plant’s food and oxygen
• Removing Wastes


  Cells must remove waste material or they act as poisons and can harm the cell
• Reproduction of cells


  Through cell division the cells split into two identical cells
• Damaged cells are replaced
• Cells are made up organelles (parts within each cell)
• There are many types of cells

  True or False?

  True