Biology Ch 3 Connect 3

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toribloom
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170513
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Biology Ch 3 Connect 3
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2012-09-13 06:17:05
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Biology
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Biology
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  1. ______ are the simple subunits that form polymers when they bind together.
    Monomers.
  2. A class of organic compounds that tend to be insoluble in water and that includes fats and oils
    Triglycerides
  3. A copy of a gene that determines the amino acid sequence is?
    mRNA
  4. Brings the correct amino acid during protein synthesis is?
    tRNA
  5. HOlds amino acids allowing a peptide bond to form between them is?
    rRNA
  6. Which sugars are polysaccharides?

    cellulose
    glucose
    starch
    glycogen
    sucrose
    • cellulose
    • glycogen
    • starch
  7. Glucose is a ____saccharide.
    mono
  8. Sucrose is a ___saccharide.
    Di
  9. What is the role of an enzyme?
    To speed chemical reactions by bringing reactants together.
  10. Fatty acids and glycerol are the two subunit molecules of _____ and ____.
    oils and fats
  11. Fats, steroids, waxes and oils are all classified as:

    nucleic acids
    carbohydrates
    proteins
    lipids
    Lipids
  12. A _____ is a biomolecule that is composed of many monomers linked together.
    polymer
  13. Proteins are polymers constructed from _____ monomers.
    amino acid
  14. glucose
  15. Organic catalysts, that are usually proteins, and that speed reactions are called ________.
    enzymes
  16. A small polymer composed of two or more amino acid subunits, is called a:
    peptide
  17. a ______ is a polymer of monosaccharides.
    polysaccharide
  18. which lipids function in long term energy storage?

    steroids
    oils
    fats
    phospholipids
    • oils
    • fats
  19. ________ are a component of the plasma membrane.
    phospholipids
  20. The type of lipid molecule having complex of four carbon rings, and includes cholesterol, estrogen, progesterone, and testosterone.
    steroid
  21. Enzymes bring reactants close together catalyzing chemical reactions.
    Metabolism
  22. Proteins in the plasma membrane regulate what substances enter or exit the cell
    Transport
  23. Fats and oils consist of two types of molecules.
    fatty acids and glycerol
  24. A nucleotide consists of:

    Pentose sugar
    phsphate
    glucose
    nitrogenous base
    amino acid
    • pentose sugar
    • phsphate
    • nitrogenous base
  25. A ___ is  a sticky lipid with a long-chain fatty acid bound to a long-chain alcohol
    wax
  26. Thymine - Adenine

    Guanine - Cytosine

    Cytosine - Guanine

    Adenine _ Thymine
  27. The pentose sugar found in RNA is ____.
    Ribose
  28. ______ bonds join complementary bases on opposite strands of a DNA molecule.
    Hydrogen
  29. ______ bonds connect the nucleotides within the same strand of DNA.
    Covalent
  30. Which DNA base cannot be found in a strand of RNA?
    Thymine
  31. Which would be a structural polysaccharide?

    Starch
    Glucose
    Cellulose
    Chitin
    • Cellulose 
    • chitin
  32. A ______ contains more than two monosaccharide units.
    Polysaccharide
  33. a ____ consists of two monosaccharides joined together.
    Disaccharide
  34. Two polysaccharides that function in energy storage are:

    sucose
    glycogen
    cellulose
    starch
    glucose
    • Glycogen
    • starch
  35. Alpha helices and bata pleated sheets are common patterns of protein sturcture at the ____level
    primary
    secondary
    tertiary
    quaternary
    secondary
  36. plants store energy as ______, while animals store energy as ___.
    Starch; glycogen
  37. Secondary structures found in proteins?
    double helix
    alpha helix
    polypeptide
    beta pleated sheet
    peptide bond
    • alpha helix
    • beta pleated sheet
  38. A protein is a molecule consisting of many amino acids linked together.
    True
  39. a protein is a molecule consisting of many long-chain fatty acids linked to long-chain alcohols.
    false
  40. Organic molecules must contain which two elements?
    Carbon and hydrogen
  41. Long term energy storage in plants?
    Oils
  42. long term energy storage and insulation in animals?
    fats
  43. component of the plamsa membrane?
    phospholipids
  44. protection, preention of water loss?
    waxes
  45. precursor to sex hormones and a component of the plasma membrane?
    steroids
  46. A ______ consists of nitrogenous base, pentose sugar and phosphate.
    nucleotide
  47. Another name for a dehydration reaction is a ________ reaction.
    condensation
  48. A nucleic acid is best described as a polymer of nucleotides.
    true or false
    true
  49. A _______ is a monomer formed from a phosphate, a pentose sugar, and a nitrogenous base.
    nucleotide
  50. unsaturated fatty acids have one or more double bonds between the carbon atoms in the chain.

    true/false
    true
  51. Saturated fatty acids do not have double bonds between the carbon atoms in the chain.

    True/false
    True
  52. Two molecules have the same chemical formulas but have  different physical structures are called ____.
    isomers

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