Science midterm

• Cell

  • Basic unit of life
• DNA - Deoxyribonuclic acid
• Cell Membrane - controls what goes in and out of the cell.
• Organelles - associate and behave to form a multitude of bodies that have long been observed by scientists.
• Nucleus - Control center of the cell
• Centrioles - Paired organelles that are in the cytoplasm and take part in cell division.
• Microtubules

  • skeleton of the cell
• Mitosis

  • Growth and repair
• Stages of Mitosis

  • Prophase
  • Metaphase
  • Anaphase
  • Telophase
  • Interphase
• Prophase

  • The first stage of Mitosis or Meoisis.
• Metaphase

  • chromosomes line up along the equator plate of the spindle.
• Anaphase

  • The daughter chromosomes move away from each other to the opposite ends of the cell.
• Telophase

  • seperated chromosomes reach the opposite poles of the dividing cell and the nuclei of daughter cells form around the two sets of chromosomes.
• Interphase

  • also called interkinesis
• Cytokinesis

  • the process of cell division in which cytoplasm is divided into two-daughter cells.
• Meoisis

  • Sexual Reproduction
• Gregor Mendel - Father of Genetics
• Spermatogenesis

  • Formation of sperms
• Oogenesis

  • Formation of eggs
• Phenotype

  • physical manifestation
• Genotype

  • internally coded, inheritable information
• biodiversity

  Bio - Life

  Diversity - The range of different characteristics that exist in a population.
• Carl Linnaeus - Father of taxonomy.
• Species - basic unit of classification.
• Classification level

  • Domain
  • Kingdom
  • Phylum
  • Class
  • Order
  • Family
  • Genus
  • Species