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Biology First Trimester Assignment

  •  English    18     Public
    A fun biology quiz ;Though most questions are pretty hard, the intention of the game is not to answer all but to see which team explored the book more.Have fun! A/K/N/S/S 10C.
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  • A polysaccharide combined with amino acids called ___ is found as ___ in cell walls.
    a) peptidoglycan b) murein
  •  20
  • By converting glucose, by condensation reactions, we obtain a molecule which is ___ , ___ , ___ and ___ .
    Convenient, Inert(Unreactive), Compact and Insoluble.
  •  25
  • Animal lipids are often saturated and occur as ___ , while plant lipids are often unsaturated and occur as ___ .
    a) fats b) oils
  •  5
  • When lipids are oxidised in respiration they are converted to ___ and ___ .
    Carbon dioxide and water.
  •  15
  • Disulfide bonds are formed through a process known as ___ and are broken through another process called ___.
    a) oxidation (-2H) b) reduction (+2H)
  •  25
  • Haemoglobin is a globular or fibrous protein?
    Globular
  •  10
  • What is the human enzymes optimum temperature ?
    40°C
  •  5
  • Proteins that are found embedded within the membrane are called ___.
    Intrinsic (integral) proteins.
  •  15
  • In many chemical reactions, the substrate will not be converted to a product unless it is temporarily given some extra energy. This energy is called ___.
    Activation energy.
  •  5
  • Glycogen molecules clump together to form ___ which are visible in ___ cells and ___ cells where they form an ___ ___.
    a) granules b) liver c) muscle d) energy reserve
  •  25
  • Cellulose makes up about ___-___% of the average cell wall.
    20-40%
  •  15
  • More than ___% of the dry mass of most cells is protein.
    50%
  •  10
  • ___ is the simpliest amino acid.
    Glycine.
  •  5
  • The four types of bond which are important in protein tertiary in protein tertiary structure are 1.___ 2.___ 3.___ 4.___.
    1. Hydrogen bond 2. Disulfide bond 3. Ionic bond 4. Weak hydrophobic interaction
  •  20
  • Nucleotides are made from ___ and ___ and they later themselves are the building blocks of ___ acids.
    1. Monosaccharides 2. Organic bases 3. Nucleic
  •  20
  • Average diameter of prokaryotic cells is ___-___ micrometre.
    0.5-5
  •  10