KS3 Cells

• What are all living organisms made up of?

  Cells
• What are the main components of a typical animal cell?

  • Nucleus
  • Cell membrane
  • Mitochondria
  • Cytoplasm
  • Ribosomes
• What is the function of the nucleus in a cell?

  Controls cell activity and stores genetic information
• What does the cell membrane do?

  Controls what goes in and out of the cell
• Where does respiration take place in a cell?

  Mitochondria
• What is the cytoplasm's role in a cell?

  It is where chemical reactions take place
• What additional parts does a plant cell have compared to an animal cell?

  Chloroplasts, vacuole, and cell wall
• What is the function of chloroplasts in a plant cell?

  Photosynthesis takes place here
• Why are chloroplasts green?

  They contain chlorophyll
• What is the role of the vacuole in a plant cell?

  Stores cell sap and keeps the cell firm
• What does the cell wall provide for a plant cell?

  Support
• What is the cell wall made from?

  Cellulose
• What are the key differences between animal and plant cells?

  • Plant cells have chloroplasts for photosynthesis
  • Plant cells have a vacuole for storage
  • Plant cells have a cell wall for support
• What are the different levels of organization in a multicellular organism?

  Organelles, cells, tissues, organs, organ systems, organisms
• What are specialized cells?

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

  Epithelial cells, muscle cells, glandular cells
• What is a tissue?

  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 defines an organ?

  A group of different tissues working together
• What is the function of the stomach?

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

  A group of organs working together
• What is the significance of the specific shape of cells in animals and plants?

  They are designed for particular jobs or functions
• What organs form the digestive system?

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

  • Organelles
  • Cells
  • Tissues
  • Organs
  • Organ systems
  • Organism
• Why does the sperm cell have many mitochondria?

  To release energy for movement
• What is the function of the tail in a sperm cell?

  For swimming
• What is the function of the nerve cell's branched connections?

  To connect to other nerve cells
• Why is the red blood cell's shape important?

  It has a large surface area to carry oxygen
• Why does the red blood cell have no nucleus?

  To maximize space for oxygen transport
• What is the function of chloroplasts in palisade cells?

  Photosynthesis
• Why is the root hair cell specialized for its function?

  It has a large surface area to absorb water
• Why does the root hair cell have no chloroplasts?

  It is underground and doesn't do photosynthesis
• How do specialized cells differ from typical cell models?

  • Specialized cells have unique shapes
  • They are designed for specific functions
  • Typical models do not represent this diversity