Answer:
The number of active sites enzyme have is 1.
Explanation:
Mass of penicillinase = 4.10 μg =
1 g = 1000000 μg
The turnover number of the enzyme at 28 °C =
Moles of penicillinase =
Mass of antiboitic-amoxicillin =2.83 mg =
Moles of amoxicillin =
Moles of reactant which are converted into product per second:
=
Moles of product converted in 29.6 seconds:
Number of sites:
Answer:
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Explanation:
1ai. The most dense is Tungsten.
1aii. The least dense is Sodium.
1aiii. The strongest is Tungsten.
1b. All metals conduct electricity.
They are all magnetic except magnetic.
and all solid at room temperature except mercury.
1c. Mercury is a liquid at room temperature.
1d. Tungsten is used as filament for light bulbs due to its high melting point and it doesn't oxidize, this the filament won't melt.
1e. The lump of gold will sink because it is more dense than mercury.
Answer:
False
Explanation:
Fossil fuels are used as a source of energy to this day.
Answer:
The forward reaction will be favored.
Explanation:
The reaction is:
As per equation (equilibrium equation), there are two moles of gaseous molecules on product side and three moles of reactant side.
a) If we increase pressure, the volume will decrease.
b) Due to decrease in volume, the moles per unit volume will increase.
c) In order to attain equilibrium again, the system will shift in the direction where it can nullify this effect [Le Chatelier's principle]
d) This can be done, if system moves in the direction where number of moles of gaseous molecules are less, which is product side.
e) Thus forward reaction will be favored.
Answer: e. YqhD gene
Explanation:
The researchers showed that most of the isobutanol produced in E.coli strains is due to the action of the alcohol dehydrogenase YqhD. Remember that E. coli has several genes encoding for alcohol dehydrogenases.
They deleted the yqhD gene and found a 80% reduction in isobutanol production.