Cell organisation + organs and organ systems

• What are large multicellular organisms made up of?


  Organ systems
• What makes up all living organisms?

  Cells
• What is the role of specialised cells?


  They carry out a particular function
• What occurs during the development of a multicellular organism?

  Differentiation
• How are specialised cells organized in multicellular organisms?


  • Specialised cells → tissues
  • Tissues → organs
  • Organs → organ systems
• What do large multicellular organisms like rats have for exchanging and transporting materials?


  Different systems
• What is a tissue?


  • A group of similar cells
  • Work together to carry out a particular function
• What type of tissue contracts to move whatever it's attached to?

  Muscular tissue
• What does glandular tissue do?


  Makes and secretes chemicals like enzymes or hormones
• What is the function of epithelial tissue?


  Covers some parts of the body, like the inside of the gut
• How are tissues organized into organs?


  • Organs are groups of different tissues
  • Work together to perform a particular function
• What is an example of an organ?


  Stomach
• What does muscular tissue do in the stomach?


  Moves the stomach wall to churn up the food
• What is the role of glandular tissue in the stomach?


  Makes digestive juices to digest food
• What does epithelial tissue do in the stomach?


  Covers the outside and inside of the stomach
• How are organs organized into organ systems?


  • A group of organs working together
  • Perform a particular function
• What is the function of the digestive system?


  Breaks down and absorbs food
• What do glands like the pancreas produce?


  Digestive juices
• What is the role of the stomach in digestion?


  Digests food
• What does the liver produce?


  Bile
• What is absorbed by the small intestine?


  Soluble food molecules
• What does the large intestine absorb?


  Water from undigested food