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5 Written questions

5 Matching questions

  1. What is the cell nucleus and what is its function?
  2. What is osmosis and how does it work?
  3. Describe a covalent bond?
  4. What is hypertonic?
  5. What is mitosis?
  1. a Covalent bonds share electrons between atoms
    (ex: H20 or water)
  2. b 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)
  3. c diffusion of water through a selectively permeable membrane. water will move from an area with more present to an area with less water present. takes place in the kidneys which reabsorb large amounts of water. FOR WATER
  4. d A solution with a higher salt concentration than in the cells
    (cells shrink) LESS WATER THAN IN CELL
  5. e Nucleus is within the cytoplasm and has a nuclear membrane with nucleoli and chromosomes of the cell. Nucleolus is where DNA and all genetic info for human traits lies.

5 Multiple choice questions

  1. Contains skull and brain (CNS)
  2. Requires energy of mechanical pressure. Water and dissolved materials are FORCED through a membrane from an area of higher PRESSURE to an area of lower PRESSURE
    (Example: formation of tissue fluid and the first step in the formation of urine)
  3. 1. Simple squamous -one layer of flat cells (alveoli of lungs, permits diffusion of gases)
    2. Stratified squamous- many layers of cells (epidermis, lining of esophagus and vagina)
    3. Transitional- many layers of cells (lining of bladder, permits expansion)
    4. Cuboidal- one layer of cube shaped cells (thyroid gland, salivary gland, kidney tubules) excretory
    5. Columnar- One layer of column shaped cells (lining of stomach, lining of small intestine and absorbs products in digestion)
    6. Ciliated- one lay of columnar cells with cilia on free surfaces (lining of trachea to sweep mucus and dust pharynx and lining of fallopian tube to sweep ovum toward uterus)
  4. name for energy production within cells and involves the respiratory gases: oxygen and carbon dioxide
    (ex: glucose and oxygen combine to make carbon dioxide, water, ATP and heat)
  5. A solution with lower salt concentration than in the cells
    (cells burst) MORE WATER THAN IN CELL

5 True/False questions

  1. What are the two main body cavities and what is contained in them?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.


  2. What are the different kinds of bonding atoms?1. Sagittal plane which divides left from right (cut down the middle would be mid-sagittal)
    2. Frontal plane which divides the body front to back (Coronal)
    3. Transverse plane which is a horizontal plane that separates the body into upper and lower portions (cuts you at belly button into upper body and lower body)


  3. What is diffusion and how does it work?movement of molecules from an area of greater concentration to an area of lesser concentration along the concentration gradient. Very slow process. FOR MOLECULES
    (Example: exchange of gases in lungs or body tissues)


  4. What are the cell organelles and what do they do?secretion of an endocrine gland that has effects on target organs
    (ex: Insulin - enables cells to take in glucose and lowers glucose levels. Growth hormone - increases protein synthesis and cell division)


  5. What is a hormone and what does it do?secretion of an endocrine gland that has effects on target organs
    (ex: Insulin - enables cells to take in glucose and lowers glucose levels. Growth hormone - increases protein synthesis and cell division)