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Grade 7 - Test Review

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  • How do vaccines work?
    They introduce a harmless component of a pathogen to stimulate the immune system to produce antibodies and memory cells.
  • What are specialized cells?
    Cells that have specific structures and functions suited to their roles in an organism.
  • Laabel the organelles in the cell.
    1. Nucleus, 2. Mitochondria, 3. Chroloplast, 4. Lysosomes, 5. Centrioles, 6. Cell Wall
  • How do a plant cell differ from an animal cells?
    Plant cells have a cell wall and chloroplasts, while animal cells do not. Plant cells have a large central vacuole compared to smaller vacuoles in animal cells
  • What are the main structures found in plant cells?
    Chloroplasts, cell wall, large central vacuole, nucleus, cell membrane
  • What is a dichotomous key?
    A dichotomous key is a tool used to identify organisms based on a series of choices (yes/no questions) that lead to the correct name of the organism.
  • What is the purpose of a vaccine?
    Vaccines are designed to stimulate the immune system to recognize and fight specific pathogens.
  • What defines a species?
    A species is a group of organisms that can reproduce and produce fertile offspring.
  • Name three cell components and its functions.
    Nucleus, Cell Wall, Cell Membrane, Chloroplast, Sap Vacuole, Mitochondria, Cytoplasm, Centrioles, Golgi Apparatus, Endoplasmic Reticulum, Lysosomes
  • Give two examples of an animal specialized cell and describe its functions.
    Red Blood Cell / White Blood Cell / Sperm Cell / Egg Cell / Fat Cell / Muscle Cell / Ciliated Cell / Nerve Cell
  • List the eight characteristics of living things.
    Made up of cells; Breathe; Sensitivity / Respond to stimuli; Require energy / nutrition; Movement; Excrete; Grow and develop; Reproduce
  • What is a virus?
    A virus is a microscopic infectious agent that can only replicate inside the living cells of an organism.
  • How do you use a dichotomous key to identify organisms?
    By answering a series of questions based on observable characteristics, one can narrow down the options until the organism is identified.
  • Create a classification key to identify the following dogs.
  • What are the key components of animal cells?
    Nucleus, cell membrane, mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes
  • Give two examples of a plant specialized cell and describe its functions.
    Palaside Cell / Root Hair Cell
  • How do vaccines help protect public health?
    By providing immunity to individuals, vaccines reduce the spread of diseases and protect vulnerable populations.
  • How does a virus differ from living organisms?
    Viruses cannot carry out metabolic processes on their own and need a host cell to reproduce.
  • Discuss the relationship between cells, tissues, and organs.
    Cells are the basic unit of life, which group together to form tissues. Tissues then combine to form organs, which perform specific functions in the body.