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5 Written questions

5 Matching questions

  1. What is mitosis?
  2. What are the different kinds of bonding atoms?
  3. What is the cell membrane made up of and what is its function?
  4. Describe a Hydrogen bond?
  5. What is active transport and how does it work?
  1. a requires ATP to move molecules from an area of lesser to an area of greater concentration.
    (Example: sodium pumps to move Na+ out of the cells)
  2. b outer boundary of a cell made up of phospholipids, cholesterol and proteins.
    its main job is to protect the cell and acts as a barrier for communication and assists in transport
  3. c does not involve the sharing of electrons but results in hydrogen atoms
    (ex: water molecules are attracted to nearby water molecules to form surface tension)
  4. d Cell division involving one cell with the diploid number of chromosomes dividing into two identical cells.
    (used for repair of tissues and growth of the organism)
  5. e 1. Chemical bonds
    2. Ionic bonds
    3. Covalent bonds
    4. Disulfide and Hydrogen bonds

5 Multiple choice questions

  1. A solution with lower salt concentration than in the cells
    (cells burst) MORE WATER THAN IN CELL
  2. process of cell division that results in the formation of gametes which are egg and sperm cells.
    (used for creating human life)
  3. a watery solution (cytosol) of minerals, gases, organic molecules and cell organelles are found. it gives the cell its shape
  4. Spinal vertebre

5 True/False questions

  1. What is a positive feedback mechanism?the response to stimuli does not stop but rather keeps the sequence of events going. (requires an external brake)
    EX: cervical stretching during childbirth

          

  2. What are the cell organelles and what do they do?ER or endoplasmic reticulum- are tubules that transport materials necessary for cell function within the cell.
    Ribosomes- are very small structures made of protein and ribosomal RNA and are found on the surface of rough ER.
    Proteasome- is a barrel shaped organelle made of enzymes that cut protein molecules apart.
    Golgi apparatus- are flat, membranous sacs where carbohydrates are synthesized and are packed with other materials for cellular secretion.
    Mitochondria- are oval organelles bound by a double membrane where cell respiration takes place and site of ATP production.
    Lysosomes- are single membrane structures that contain digestive enzymes and eat dead cells and bacteria .
    Centrioles- are a pair of rod shaped structures outside the nucleus that spindle fibers during cell division.
    Cilia and Flagella- are thread-like projections through the cell membrane that can sweep materials across cell surface and flagellum provide mobility of the cell.
    Microvilli- are folds of the cell membrane that increase surface area of membrane when needed. They are good for absorption of nutrients as well.
    Cytoskeleton- are the framework and support of the cell. Made of microfiliaments.

          

  3. Point out cell organelles and nameER or endoplasmic reticulum- are tubules that transport materials necessary for cell function within the cell.
    Ribosomes- are very small structures made of protein and ribosomal RNA and are found on the surface of rough ER.
    Proteasome- is a barrel shaped organelle made of enzymes that cut protein molecules apart.
    Golgi apparatus- are flat, membranous sacs where carbohydrates are synthesized and are packed with other materials for cellular secretion.
    Mitochondria- are oval organelles bound by a double membrane where cell respiration takes place and site of ATP production.
    Lysosomes- are single membrane structures that contain digestive enzymes and eat dead cells and bacteria .
    Centrioles- are a pair of rod shaped structures outside the nucleus that spindle fibers during cell division.
    Cilia and Flagella- are thread-like projections through the cell membrane that can sweep materials across cell surface and flagellum provide mobility of the cell.
    Microvilli- are folds of the cell membrane that increase surface area of membrane when needed. They are good for absorption of nutrients as well.
    Cytoskeleton- are the framework and support of the cell. Made of microfiliaments.

          

  4. What is hypertonic?A solution with a higher salt concentration than in the cells
    (cells shrink) LESS WATER THAN IN CELL

          

  5. What areas do connective tissue membranes cover?Contains skull and brain (CNS)

          

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