# BMS1041 enzymes

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- Created by: tammyrocks4eva
- Created on: 04-06-14 10:30

## Other questions in this quiz

## 2. In one of the practicals you measures the conversion of NAD+ to NADH, why?

- NAD+ is a common chemical and simple to purify
- NADH is a common chemical
- quartz cuvettes can be used
- the conversion of NAD+ to NADH can be measured spectrophotometrically at a wavelength of 340nm
- the conversion of NADH to NAD+ can be measured spectrophotometrically at a wavelength of 340nm

## 3. The michaelis menton hyperbolic equation relates v0, km, Vmax and [s], which of these statements best define the equation, parameters and variables

- v0 = Vmax x [s] / Km + [s], where the variables are v0 and the parameters are [s], Km and vmax
- v0 = Vmax + [s] / Km x [s], where the variables are v0 and [s] and the parameters are Km and vmax
- v0 = Vmax x [s] / Km + [s], where the variables are v0 and Km and the parameters are Km, [s] and vmax
- v0 = Vmax x [s] / Km + [s], where the variables are v0 and [s] and the parameters are Km and vmax
- v0 = Vmax x [s] / Km x [s], where the variables are v0 and [s] and the parameters are Km and vmax

## 4. The brain enzymes hexokinase has a Km of 0.05 mM and a Vmax on 100mol/min, the intracellular levels of glucose are 5mM, what would you assume the %saturation of the enzyme would be?

- greater than 40% but less than 60%
- greater than 60% but less than 80%
- greater than 80%
- greater than 0% but less than 20%
- greater than 20% but less than 40%

## 5. By definition enzymes

- act as biological catalysts
- act as chemical catalysts
- always catalyse irreversible reactions
- convert ligands to products

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