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Biology Exam Review

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  • What is the definition of homeostasis?
    Homeostasis= how your body “balances” itself. It regulates your temperature, chemicals, and water in YOUR BODY
  • What are TWO examples of metabolism? Hint: flowers + sun and food!
    photosynthesis and cellular respiration
  • What is a control group?
    control group= used to compare, it is in ‘normal’ conditions
  • Name TWO characteristics of life
    1. Organization (Cells) 2. Response to stimuli 3. Homeostasis 4. Metabolism 5. Can grow and develop 6. Can reproduce 7. Can change over time
  • What is the definition of metabolism?
    Metabolism= all the chemical reactions in your body that change food into energy.
  • Give ONE example of a specialized type of cell? Hint: They originate from STEM cells, example: muscle cells
    blood cells= cells found circulating in the blood neurons= cells in the brain cartilage= covers/ protects bones
  • What is pluripotent?
    Pluripotent= can make multiple cell types
  • What is the definition of a Hypothesis?
    A hypothesis is based on prior knowledge or experience. there is a relationship (cause and effect)
  • What is a blastocyst?
    Blastocyst= hollow ball of cells
  • What is photosynthesis?
    photosynthesis= plants use sunlight to make foods from carbon dioxide and water.
  • What are the steps of the Scientific Method?
    Question Research Hypothesis Experiment (Gather Data) Observations (Analyze Data) Conclusion
  • What is the organization from cells to organism?
    Cell – tissues – organs – organ system- organism
  • What is a null hypothesis?
    there is not a relationship between what was expected and what was observed
  • Name ONE of the three domains of life?
    Archaea – extreme-habitat prokaryotes. Bacteria – “common bacteria”; prokaryotes. Eukarya – all eukaryotes (animals, plants, fungi, protists).
  • What form should a Hypothesis statement be in? (How should I write a Hypothesis Statement)
    If x, then y. Example: If students eat more M&M’s, then they will get an A+ on their biology test.
  • What are TWO of the 6 kingdoms of life?
    Archaebacteria Eubacteria Protista Fungi Plantae Animalia
  • What is cellular respiration?
    cellular resp= take energy from glucose (food you eat) and make ATP
  • What is the definition of a cell?
    cell= smallest level of organization
  • What does DNA contain? (Hint: it is used to make proteins and is passed from generation to generation.)
    DNA containing genes for making proteins is passed to another generation.
  • What is a zygote?
    fertilized egg= “zygote” (female ovum +male sperm)- its a solid ball of cells
  • What is ATP?
    ATP= molecule that carries energy
  • What is a STEM cell?
    STEM cell=cell that can turn into other kinds of cells (it starts out basic and can TURN INTO a more specific cell)
  • What is an Experimental group?
    Experimental group= the group you are testing
  • What does it mean for cells to be “specialized?”
    What does gets “old” mean?- cells are “specialized”- turn into the types of cells we need
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