Cells, tissues, organs & organ systems

• What are the different levels of organization in a multicellular organism?

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

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

  Each organelle has a specific role
• What do multiple organelles combine to form?

  A single cell
• What are specialized cells?

  Different types of cells with specific functions
• Name three types of specialized cells.

  Epithelial cells, muscle cells, glandular cells
• How can tissues be described?

  A group of similar cells working together
• What type of tissue do epithelial cells form?

  Epithelial tissue
• What is the function of epithelial tissue?

  Covering the body's surfaces
• What do muscle cells form?

  Muscle tissue
• What is the function of muscle tissue?

  Contracting and relaxing to move body parts
• What do glandular cells form?

  Glandular tissue
• What is the role of glandular tissue?

  Making and secreting chemicals
• What defines an organ?

  A group of different tissues working together
• How does the definition of an organ differ from that of a tissue?

  Organs consist of different tissues, not similar cells
• What organ is formed by epithelial, muscular, and glandular tissues?

  The stomach
• What is the function of the stomach?

  Killing microorganisms and breaking down proteins
• What is an organ system?

  A group of organs working together
• Which organs form the digestive system?

  The stomach, pancreas, and liver
• What is the role of the digestive system?

  Digesting food and absorbing nutrients
• Name two other organ systems.

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

  The whole organism
• How many different organ systems are there approximately?

  About 12 different organ systems
• What are the levels of organization in a multicellular organism?

  • Organelles
  • Cells
  • Tissues
  • Organs
  • Organ systems
  • Organism
• What is the relationship between tissues and organs?

  • Tissues are groups of similar cells
  • Organs are groups of different tissues
  • Both perform specific functions
• What is the relationship between organ systems and organisms?

  • Organ systems are groups of organs
  • Organisms are made up of multiple organ systems
  • Both work together to maintain life