INTRO

• What is the basic unit of all plants and animals?

  Cells
• How do new cells originate?

  From the division of preexisting cells
• What are the smallest living units that perform vital functions?

  Cells
• What vital physiological functions do cells carry out?

  Nutrients, O2, wastes, CO2
• What does the ovum/zygote contain?

  fertilizes the ovum/zygote that contains genetic potential to become any cell
• What happens during the first cell division of the zygote?

  It subdivides the ovum cytoplasm into smaller parcels
• Why do the parcels formed during cell division differ from one another?

  Due to regional differences in ovum cytoplasm
• How do cytoplasmic differences affect new cells?

  They turn specific genes on or off
• What is the process of gradual specialization of cells called?

  Cellular differentiation
• What does cellular differentiation produce?

  Specialized cells that form body tissues
• What are the different types of tissues in the body?

  • Epithelial tissue
  • Connective tissue
  • Muscle tissue
  • Neural tissue
• Cell Theory Step-by-step

  Cell, Growth, Division to New Cells