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.
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.