Question

#4

TICI CU. 3. Compare and contrast types of membrane transport including transport proteins. 4. Distinguish between exergonic/endergonic, anabolic/catabolic reduction/oxidation reactions.

Answer 1

Exergonic reaction - As the name suggests these reactions are those in which energy is released.These kind of reaction do not need out source of energy and thus are called spontaneous reactions.They show negative free energy change.

eg - Cellular respiration

Endergonic reaction - These reactions require energy from outer source to complete the reaction.These are nonspontaneus reactions.In these kind of reactions energy is absorbed and total free energy change is positive.

eg - Photosynthesis

Anabolic reaction - The reactions in which smaller molecules bind together to form larger molecules are called anabolic reactions.

Eg - Two or more than two monosaccharides bind together and form oligosaccharides and polysaccharides

Catabolic reaction - These reactions are just opposite to anabolic reactions. Here large molecules are broken down into smaller molecules.

Eg - Breakdown of protein molecule into amino acids

Reduction reaction - The reaction in which one or more than one electrons are added to the compound is called reduction reaction.It is sometimes recognised as release of oxygen atom or addition of hydrogen atom to the compound.

Oxidation reaction - It is just opposite to reduction reaction.The reactions in which electrons or hydrogen atoms are released by compound or oxygen is added are called oxidation reactions.