cell organisation

• What are the different levels of organization within a multicellular organism like a human?

  Organelles, cells, tissues, organs, organ systems, and organisms
• What are organelles also known as?

  Subcellular structures
• What is the role of organelles in a cell?

  Each organelle has a specific role to play
• What do we call different types of cells that have specialized functions?

  Specialized cells
• How can we define tissues?

  A group of similar cells that work together to carry out a particular function
• Name three types of specialized cells.

  Epithelial cells, muscle cells, glandular cells
• What type of tissue is formed by lots of epithelial cells?

  Epithelial tissue
• What is the function of epithelial tissue?

  To cover the body's surfaces
• What is the role of muscle tissue?

  To contract and relax to move different parts of the body
• What does glandular tissue do?

  It makes and secretes chemicals like enzymes and hormones
• How is an organ defined?

  A group of different tissues that work together to perform a particular function
• What types of tissues might work together to form the stomach?

  Epithelial tissue, muscular tissue, and glandular tissue
• What is the function of the stomach?

  To kill microorganisms and break down proteins
• What is an organ system?

  A group of organs that work together to perform a particular function
• Which organs form the digestive system?

  The stomach, pancreas, and liver, among others
• Name two other organ systems besides the digestive system.

  The cardiovascular system and the reproductive system
• What is the highest level of organization in a multicellular organism?

  The whole organism
• How many different organ systems are there in the human body?

  About 12
• Name three organs mentioned in the study material.

  Skin, lungs, and liver
• What are the levels of organization in a multicellular organism?

  • Organelles
  • Cells
  • Tissues
  • Organs
  • Organ systems
  • Organism
• What are the functions of different types of tissues in the human body?

  • Epithelial tissue: Covers body surfaces
  • Muscle tissue: Contracts and relaxes for movement
  • Glandular tissue: Makes and secretes chemicals
• What is the relationship between organs and organ systems?

  • Organs: Groups of different tissues working together
  • Organ systems: Groups of organs working together to perform a function