Science 10 midterm

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Science 10 midterm
2011-01-19 19:54:27
science midterm

Study questions
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  1. Most end-products of complex chemical digestion are described as _________________
    small, soluable organic molecules
  2. In the oxidation of glucose to water and carbon dioxide, enzymes are needed to catalyze the _____________
    release of energy by hydrogen removal.
  3. In animals, which occurs during the synthesis of larger, more complex organic molecules from smaller organic molecules?
    Water is released
  4. In the process of photosynthesis, chloromyl serves as _______________
    an energy converter
  5. Sodium ions are pumped from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of _________________.
    Active transport
  6. What is it called when a cell surrounds small protists and takes them into the cell.
  7. In humans, what is the ratio of the number of gametes produced from one male primary sex cell to the number of gametes provided from one female primary sex cell?
  8. Our throat divides into two separate tubes: the windpipe and the gullet. What prevents food from entering the windpipe?
    The epiglotis
  9. What happens when food reaches the stomach?
    Juices mix with the food and stomach muscles squeeze it.
  10. How does digested food reach the bloodstream?
    It is absorbed into the blood through blood vessles.
  11. What are the waste products of respiration?
    Water and carbon dioxide
  12. The windpipe is protected at the front by ___________
  13. Air sacs in the lungs are correctly termed _________
  14. When inhaling, the chest cavity and the lungs _________
  15. The stimulus to take a breath is _____________
    too much carbon dioxide in the blood.
  16. Our breathing is controlled by the part of the brain called the ________________
    Medula Oblongata
  17. What part of the blood carries minerals, vitamins, sugar, and other foods to the body's cells?
  18. What happens to blood when it is pumped into the thin-walled blood vessels of the lungs?
    Carbon dioxide is replaced with oxygen
  19. Which statement describes protiens, fats, starches and DNA?
    They are complex molecules made of smaller molicules.
  20. DNA controls cellular activity by directing the synthesis of
  21. What could be used to describe 4 building blocks added together to form 4 blocks connected?
    Amino acid molecules to part of a protien.
  22. What do amino acids make in synthesis?