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Biology First Trimester Assignment

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  • Haemoglobin is a globular or fibrous protein?
    Globular
  • Nucleotides are made from ___ and ___ and they later themselves are the building blocks of ___ acids.
    1. Monosaccharides 2. Organic bases 3. Nucleic
  • ___ is the simpliest amino acid.
    Glycine.
  • What is the human enzymes optimum temperature ?
    40°C
  • 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.
  • Disulfide bonds are formed through a process known as ___ and are broken through another process called ___.
    a) oxidation (-2H) b) reduction (+2H)
  • Average diameter of prokaryotic cells is ___-___ micrometre.
    0.5-5
  • I'm feeling such a generous person today! (+25 points)
    I gëzofshi :)
  • Cellulose makes up about ___-___% of the average cell wall.
    20-40%
  • Proteins that are found embedded within the membrane are called ___.
    Intrinsic (integral) proteins.
  • 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
  • By converting glucose, by condensation reactions, we obtain a molecule which is ___ , ___ , ___ and ___ .
    Convenient, Inert(Unreactive), Compact and Insoluble.
  • 1+1=___
    2 :)
  • Animal lipids are often saturated and occur as ___ , while plant lipids are often unsaturated and occur as ___ .
    a) fats b) oils
  • 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
  • A polysaccharide combined with amino acids called ___ is found as ___ in cell walls.
    a) peptidoglycan b) murein
  • More than ___% of the dry mass of most cells is protein.
    50%
  • When lipids are oxidised in respiration they are converted to ___ and ___ .
    Carbon dioxide and water.