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Basic Principles Review

Basic Principles Review. Unit 1: Basic Biological principles. Characteristics of life: all living things are made up of these characteristics. Made up of one or more cells. Has genetic material (DNA, RNA). Can reproduce (applies to the whole species).

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Basic Principles Review

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  1. Basic Principles Review

  2. Unit 1: Basic Biological principles • Characteristics of life: all living things are made up of these characteristics. • Made up of one or more cells. • Has genetic material (DNA, RNA). • Can reproduce (applies to the whole species). • Has growth and development- they change and grow through their life. • Has homeostasis- they can regulate their internal environment. • Can get and use energy • Can evolve (change over time). • Can respond to stimuli- they respond to their environment in some way (e.g. plants grow towards light)

  3. Unit 1: Basic Biological principles • Cellular structures and functions prokaryotes • Prokaryote: A single‐celled organism that lacks a membrane‐bound nucleus and specialized organelles. • Generally small in size • Lacking a nucleus (DNA is free floating) • Simple in structure • Cellular structures and function eukaryotes • Eukaryote: A type of organism composed of one or more cells containing a membrane‐bound nucleus, specialized organelles in the cytoplasm, and a mitotic nuclear division cycle. • Generally larger in size • Has a nucleus.

  4. Unit 1: Basic Biological principles • All cells have: • Cell membrane- a boundary between their internal environment and the external environment. • Cytoplasm- the material inside the cell. • Genetic Material- either DNA or RNA.

  5. Unit 1: Basic Biological principles • Levels of Organization (from small to big). • Organelles: A subunit within a cell that has a specialized function. • Cells: The basic unit of structure and function for all living organisms. Cells have three common components: genetic material, cytoplasm, and a cell membrane. Eukaryotic cells also contain specialized organelles. • Tissues: An anatomical unit composed of cells organized to perform a similar function. • Organs: An anatomical unit composed of tissues serving a common function. • Organ systems: An anatomical system composed of a group of organs that work together to perform a specific function or task. • Multicellular organisms: A form of life (an animal, plant, fungus, protist or bacterium) that is made up of more than one cell.

  6. Video Review Prokayotes vs. Eukaryotes

  7. Video Review • Animal vs. Plant Cells

  8. Video Review • Characteristics of Life

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