cell differentiation and specialisation

• What are specialized cells in complex organisms?

  Different types of cells
• There are approximately 200 types of specialized cells in humans.
• Examples of specialized cells in plants include root hair cells and xylm
• What is the role of a sperm cell?

  Fertilize the egg
• A sperm cell has half as much genetic material as a normal adult cell.
• The tail-like structure on a sperm cell is called a flagellum
• What do the mitochondria in a sperm cell provide?

  Energy for swimming
• Digestive enzymes in a sperm cell break a hole into the egg cell.
• Specialized cells have a specific role and are adapted in shape, structure, and organelles
• Stages of differentiation in humans

  1️⃣ Zygote formation

  2️⃣ Cell division by mitosis

  3️⃣ Differentiation into specialized cells
• What is differentiation in biology?

  Specialization of cells
• What is the starting cell in human development?

  Zygote
• All cells in a zygote are identical before differentiation.
• Differentiation involves changes in cell shape, structure, and organelles
• What are stem cells in biology?

  Cells that can differentiate
• Stem cells can repeatedly divide by mitosis and differentiate into various cell types.