Bio Final Fall 2015

62 Questions | Total Attempts: 94

SettingsSettingsSettings
Please wait...
Bio Final Fall 2015

Questions and Answers
  • 1. 
    Identify the letter of the choice that best completes the statement or answers the question. (1 point each)
  • 2. 
    Matching:  Only one letter matches the term (there is an extra letter – one doesn’t have a match) (1 point each)
  • 3. 
      Behold – one of your cheek cells.  It’s had a busy day, producing and secreting digestive enzymes and being stretched as you chew, yawn, speak, etc.  It has no idea that you’re taking a final exam, or that it’s about to play a central role.Fill in the blanks below! (1 point each)Figure 6-1Identify each of the cell structures indicated in Figure 6-1.  If unsure which structure is being pointed to, please ask.
  • 4. 
    Select three organelles from the above list and describe how each contributes to the function of the cell. (1 pt each for a total of 3 pts)
  • 5. 
    Answer each of the following in a complete sentence or several complete sentences. 
  • 6. 
    What type of molecule are enzymes, and what effects do they have in the body?  Be specific.
  • 7. 
    If you get a high enough fever, some of your enzymes may not work anymore.  Why not?
  • 8. 
    We humans generally can’t live more than a few minutes without oxygen.  Why?  Why do we actually need oxygen?  Your explanation must be thorough and convincing, using appropriate vocabulary (‘because we’d die without it’ isn’t a satisfactory answer here!) (2 pts)
  • 9. 
    How are glucose and starch related? Use the words monomer, polymer, and carbohydrate in your answer.  (3 pts)
  • 10. 
    As shown in the figure above, modern whales have a vestigial pelvis and femur (leg bone).  What does this evidence suggest about the history of modern whales?  Your answer must include the terms ‘variation’, ‘population’, ‘alleles’, ‘selected for’, ‘limited resources’, and ‘competition’ (3 pts).
  • 11. 
    In the diagram below, a U-shaped glass tube contains two different sugar-water solutions. The solutions are separated by a selectively permeable membrane that sugar molecules cannot penetrate. Use the diagram to answer the questions that follow (1 pt each).
  • 12. 
    Which solution (A or B) contains a greater concentration of solute? 
  • 13. 
    Predict the direction in which osmosis will occur. Explain your reasoning. 
  • 14. 
    Explain what the water levels in the tube will look like at equilibrium. 
  • 15. 
    How are active transport and facilitated diffusion different? 
  • 16. 
    Identify two differences between DNA and RNA. 
  • 17. 
    Answer two of the following three questions (62 – 64).  I’ll only grade two – choose wisely!  (6 points each)
  • 18. 
    You hike to a stream surrounded by trees.  Water striders skitter across the stream’s surface, while 40 feet above the ground the tree’s leaves are receiving a steady supply of water and dissolved ions (like sodium and     magnesium) necessary for photosynthesis.  The day is hot (you’re sweating quite a bit), but the water looks cool – which reminds you to take a drink from your water bottle. In the bottle, the last bits of remaining ice cubes that you added that morning still float. You feel your insides cool off! 
    1. Identify the two elements that make up a molecule of water. (1 pt) 
    2. What type of bonds hold the above elements of a single water molecule together, and how strong are they? (1 pt)
    3. What gives water it its special properties? Please answer in the form of a simple labeled sketch. (1 pt)
    4. Explain in detail how your answer to 3 can explain three essential properties of water revealed in your observations at the stream above.  Labeled sketches are encouraged.  (1 pt for each property)
  • 19. 
    If you ever decide to have a child, odds are you’ll only pass on half of your genes to them.  Why can’t you pass on all of them?  (1 pt)  In your answer, use the terms ‘haploid’, ‘diploid’, ‘meiosis’, ‘zygote’ (1/2 pt each).  Your answer must explain clearly what chromosomes are (1 pt), and why they are necessary in this context (1 pt).  Lastly: while it might seem disappointing that your offspring wouldn’t be a clone of you, this might actually be a good thing for our species in the long run.  Discuss why (1 pt).
  • 20. 
    Producersprimary consumersomnivoreschemical energythermal energydetritussecondary consumersherbivorespotential energykinetic energy
    1. On a separate sheet, sketch a food web of corn, soy beans, cattle, and humans. Find a way to represent all of the words above and label all of the following in a way that makes it obvious that you know what they mean (2 pts): 
    2. Is energy conserved in this ecosystem?  Explain (1 pt)
    3.  Is matter conserved in this ecosystem?  Explain (1 pt) 
    4.  Assume that the primary productivity of the ecosystem is 100,000 kcal per day.  Draw a pyramid of energy for this ecosystem.  How many humans could it support (remember, humans need an average of 2000 kcal per day)? (1 pt)
  • 21. 
    Write text here
  • 22. 
    Having successfully completed both IPS and biology, and knowing what you know about matter and ‘life’, analyze one of the following two quotes.  What thoughts does it prompt?  Do you agree?  Disagree?  Why?1. “A scientist is an atom’s way of knowing about atoms.” – Nobel Prize winning neurobiologist George Wald2. “A single cell is infinitely more complex than the entire non-living universe.” – Scientist and author Isaac Asimov
  • 23. 
    One defining characteristics of ‘life’ is that it keeps its internal conditions relatively stable, also known as…
    • A. 

      Reproduction

    • B. 

      Homeostasis

    • C. 

      Evolution

    • D. 

      Photosynthesis

  • 24. 
    While keeping an aquarium of goldfish, you change brands of goldfish food. It seems to you that the goldfish are growing much more quickly with the new food. You want to test the effect of your new fish food on the rate of growth in the goldfish. The best design for a controlled experiment would be to divide your fish equally into two separate bowls and…
    • A. 

      …feed them different amounts of the new food.

    • B. 

      …feed them each the same amount of the new food.

    • C. 

      … feed the fish in one bowl the old food, and the fish in the other bowl an equal amount of the new food.

    • D. 

      …feed the fish in one bowl the old food. Feed the fish in the second bowl with half the amount of new food since you believe it is more nutritious.

  • 25. 
    Cell ‘theory’ says that…
    • A. 

      All living things are composed of cells.

    • B. 

      All cells come from previously living cells – except for the first-ever cell.

    • C. 

      Cells are the basic units of structure and function in living organisms.

    • D. 

      All of the above.

Back to Top Back to top