Exam @ bio review

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Exam @ bio review
2012-05-05 14:24:19

exam 2 review
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  1. Correct order of photosynthesis:
    • capture suns energy
    • make atp and nadh
    • ust atp and nadh to make sugar
  2. Function of light INDEPENDENT reaction:
    make sugar
  3. rubisco is very inefficient enzyme. part of:
    light independent reaction
  4. does calvin cycle, dont do much photorespiration, capture CO2 at night. use a lot of photosythesis:
    CAM plant
  5. photorespiration:
    destroys sugar
  6. intercellular are in an intracellular location because:
    ligands are lipid soluble
  7. intracellular receptor:
    • when signal binds, the inhibitor is released
    • the recepetor enters nucleus after inhibitor is released
  8. function of kinase enzyme
    add a phosphate group to another molecule
  9. G protein coupled receptor (GPCR)
    • signal binds on outside of membrane
    • G protein binding site is on the outside of membrane
    • activiated G protein goes and does something
    • receptors are cell surface receptors
  10. two kinds of secondary messengers:
    • Ca++
    • cAMP
  11. epinephrine signaling order:
    signal arrives, G-protein is activated, cAMP is made, protein kinase is activated, glycogen is broken down.
  12. Chromatin
    50/50 dna protein
  13. Nucleosomes are made of:
    DNA and protein
  14. cell divison in prokaryotes:
    is called binary fission
  15. after mitosis 20 chromosomes. parent had how many chrom.
    20 chromosomes
  16. in mitosis chromatids seperate from one another in:
  17. cell plate formation is done by______ in order to undergo_____
    plants, cytokinesis
  18. Cdk becomes bound to _____ thus influencing the cell cylcle
  19. randomness of a system:
  20. G=H-TS S=
  21. substance attaches to an enzyme at enzyme's _____site
  22. general function of NADH
    carry electrons
  23. Somre RNA molecules serve as catalysts and are called ribozymes (TRUE OR FALSE)
  24. One glucose requires 10kcal/mole and is therefore an ____reaction. How many ATP molecules will be needed to attach 2 glucose molecules:
    endergonic, 3
  25. energy currency molecule of a cell is?
  26. Organic molecule is acceptor of low energy electron for what process:
  27. Glycolysis is the initial breakdown of ____. it captures ____% of its energy.
    • glucose
    • 3%
  28. symbolizes pyruvate oxidation:
    3C ---> 2C + 1C
  29. Products of the Krebs cycle:
    • ATP
    • NADH
    • FADH2
  30. Chemiosmosis theory:
    the mov. of electrons results in the pumping of protons,and this reulst in ATP synthesis
  31. wher in the mitochondrion do H+ accumlate in the course of chemiosmosis?
    in the intermembrane space
  32. the actual yield of cellular aerobic respiration is approx. ____ atp molecules per glucose molecule
  33. Only Glucose can be used in cells for cellular aerobic repsiration. fat and protein molecules are never used to get energy. TRUE OR FALSE
  34. Fermentation in animal cells:
    • makes little ATP
    • regenerates NAD+
  35. cellular aerobic resp. is regulated at three points: glycolysis, krebs cycle, and the calvin cycle. TRUE OR FALSE
  36. photosyntheis is the oxidation of CO2 to make organic compounds TRUE OR FALSE
  37. what is associated with cholorplasts:
    • thylakoid
    • grana
    • stroma
  38. Who contributed to understanding of photosynth.
    blackman, priestly, calvin
  39. two products of light dep. reactions and are used by light indep.
    atp and nadph
  40. main photosyhtetic pigment in plants is:
    chloryphyll a
  41. absorption spectrum: horizontal axis:______ vert_____
    • wavelength
    • absorbtion
  42. what is made of hundreds of pigment molecules and the special molecules to which electrons are passed, is embedded in the thylakoid membrane: