martes, 15 de octubre de 2019

Unit 1 exercises 3 eso

EXERCISES UNIT 1 “THE ORGANIZATION OF HUMAN BODY”


  1. Why are bones considered to be organs?
  2. Which organelle would be more developed in a cell of the salivary glands?
  3. Which cell has more mitochondria: a spermatozois or ovum?
  4. Why do you think cells of epithelial tissue are closed together with almost no intercellular matrix between them?
  5. What is the function of cartilagenous tissue tin the trachea?
  6. Can you think on other functions that adiposse tissue perform, apart from being an energy reserve?
  7. True or false? Correct the following sentences:
    1. Striated muscle tissue allows the skeleton to move
    2. Smooth muscle tissue is not responsible for the movements of organs such as the stomach or uterus
    3. Striated muscle tissue contracts involuntarily
    4. Smooth muscle tissue contracts involuntarily

  1. Identify an organ that has:
        a) Nervous tissue:
        b) Connective tissue:
c) Muscle tissue:

  1. What type of tissue is predominant in the following organs?
    1. Brain:
    2. Bone:
    3. Glands:
    4. Heart:
    5. Skin:
    6. Lung:

  1. What system will be affected if any the following events happened?
    1. Fracturing a leg
    2. Being anaesthestised:
    3. Cardiac arrest
    4. Nosebleeds

  1. What is a biomolecule?

  1. Give examples of organic biomolecules

martes, 10 de septiembre de 2019