Monday, 20 April 2009

A few days ago I took a biology quiz.. and this is the result..
  1. Alfonso eats a blueberry bagel for breakfast. Which of the following correctly traces the energy he received back to the sun?

    • heterotroph -> heterotroph -> SUN
    • human -> heteroroph -> SUN
    • heterotroph -> autotroph -> wheat -> SUN
    • heterotroph -> autotroph-> SUN (correct answer, your response)

    Points earned: 1 out of 1 
 
  1. An analogy: organ is to human as ________ is to bacteria.

    • Nucleus
    • Deoxyribonucleic Acid
    • Organelle (correct answer, your response)
    • subatomic particles
    • atoms

    Points earned: 1 out of 1 
 
  1. Ionic bonds are formed by two molecules that

    • Have opposite net charges (correct answer, your response)
    • Share one or more electrons
    • contain the element Ion

    Points earned: 1 out of 1 
 
  1. A happy little tree living in a Bob Ross painting. As the sun sets behind the mountains, which of the following process changes will occur in the tree's happy little cells?

    • The light-dependent reaction will cease, and the light independent reaction will continue. (correct answer, your response)
    • The light-dependent reaction will start, and the light-independent reaction will cease.
    • The light-dependent reaction will cease, and the light-independent reaction will start.
    • The chlorophyll retreats back into the stem, the leaves change color, and fall.
    • That is an amazing painting if the sun can move.

    Points earned: 1 out of 1 
 
  1. Jupiter's moon Europa is one of our solar system;s possibilities for extraterrestrial life. Water may exist to sustain life, but under miles of ice, and the moon is 5 times the distance from the sun as the Earth. If there is life, what method have we discussed that it may use to obtain energy?

    • photosynthesis
    • aerobic respiration
    • carbohydrate conflagration
    • chemoautotropism (correct answer, your response)









    1. A chromosome is made up of _____ and forms only _____.

      • protein, in sperm cells
      • protein, in photosynthetic cells
      • DNA, in the cytoplasm
      • DNA and protein, during cell division (correct answer, your response)

      Points earned: 1 out of 1 
     
    1. Which of the following are nonliving?

      • Organelle
      • element
      • chlorophyll
      • oligosaccharide
      • all of these (correct answer, your response)

      Points earned: 1 out of 1 
     
    1. Which of the following is more liquid than solid at room temperature?

      • waxes
      • unsaturated fat (correct answer, your response)
      • saturated fat
      • triglyceride

      Points earned: 1 out of 1 
     
    1. Why?

      • Hydrogens have been stripped from the molecule
      • Hydrogens are attached at each possible location
      • Carbon-carbon double bonds prevent hydrogen from attaching at each location (correct answer, your response)
      • Heat causes the hydrogen bonds to weaken

      Points earned: 1 out of 1 
     
    1. A somatic cell's chromosome count is always

      • 23
      • 23 pairs (correct answer, your response)
      • 46 pairs
      • Answers A and B

      Points earned: 1 out of 1 
     
    1. Why?

      • Somatic cells are used in sexual reproduction
      • Somatic cells are NOT used in sexual reproduction
      • Somatic cells undergo Mitosis and not Meiosis
      • Answers B & C (correct answer, your response)

      Points earned: 1 out of 1 
     
    1. Order the process of protein synthesis.

      • transcription, translation
      • DNA, ribosome, mRNA, tRNA, codon, amino acid, protein
      • DNA, mRNA, tRNA, protein
      • A&B
      • A&C (correct answer, your response)

      Points earned: 1 out of 1 
     
    1. Match the following DNA base pairs with mRNA base pairs: (DNA-mRNA)

      • G-C A-U T-A C-G (correct answer, your response)
      • C-G U-A T-A C-G
      • G-C U-T T-A C-G
      • C-G T-U A-U G-C
      • NONE are correct

      Points earned: 1 out of 1 
     
    1. Long term storage of energy is best provided by

      • ATP
      • proteins
      • polysaccharides
      • triglycerides (correct answer, your response)
      • monosaccharides

      Points earned: 1 out of 1 
     
    1. Prior to fertilization, the sperm and egg are referred to as ____, and after, they are called a ____.

      • somatic cell, daughter cell
      • germ cells, daughter cell
      • gametes, zygote (correct answer, your response)
      • gametes, alleles
      • germ cells, somatic cells

      Points earned: 1 out of 1 

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