Question

(a) What is enzyme catalysis? Write an example.
(b) Which type of emulsion is milk? Explain.
(c) Explain Electrophoresis with labelled diagram.

Answer 1

(a) Enzyme catalysis: refers to various reactions (catalysed by enzymes) that occurs in the bodies of animals and plants to maintain life processes. An example of enzyme catalysis is inversion of can sugar
$C_{12}{H}_{22}{O}_{11}+H_{2}O\stackrel{\text{invertase}}{\to }{C}_6{H}_{12}{O}_6\text{(glucose)}+C_6{H}_{12}{O}_6\text{(fructose)}$
(b) Milk id oil in water type emulsion. The dispersed phase is oil and the dispersion medium is water.
(c) Electrophoresis: Charged colloidal particles migrate to electrode having opposite charge under the influence of an electric field.