Biology

11thgrade

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Unit 4: Cell Communication and Cell Cycle

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  • 1. Multiple Choice
    30 seconds
    1 pt
    What role do protein kinases serve?
    remove phosphate groups to deactivate enzymes
    inactivate cAMP to AMP
    add phosphate groups to activate enzyme's
    activate G proteins
  • 2. Multiple Choice
    30 seconds
    12 pts
    A signal molecule that binds to a plasma-membrane protein is a
    ligand
    second messenger
    protein kinase
    receptor protein
  • 3. Multiple Choice
    30 seconds
    1 pt
    Image
    What does this picture show?
    2 chromosomes
    1 chromosome that has been replicated
    1 unreplicated chromosome
    A homologous pair of chromosomes
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