Biomolecules – Q91 Which of the following statements are correct?,I. Relative abundance of carbon and hydrogen with respect to other elements is higher in any living organisms,”II. Living organisms have more nitrogen and oxygen per unit mass than inanimate objects (e.g., earth crust)”,III. All the elements present in a sample of earth’s crust are also present in a sample of living tissue,”IV. Living organisms have more Ca, Mg, Na in them than inanimate object”
Biomolecules – Q93 Which of the following statements about enzymes are correct?,I. Enzymes do not alter the overall change in free energy for a reaction,II. Enzymes are highly specific for reactions,III. The energy input needed to start a chemical reaction is called activation energy,IV. Enzymes are proteins whose three dimensional shape is key to their functions
Biomolecules – Q78 “An organic substance bound to an enzyme and essential for its activity, is called”
Biomolecules – Q79 Choose the correct statements,”I. Bond energy (ATP) is utilised for biosynthesis, osmotic and mechanical work that we perform”,”II. When glucose is degraded into lactic acid in our muscles, energy of liberated”,III. Assembly of a proteins from amino acids requires energy,IV. Majority of metabolic reactions can occur in isolation,V. There are many examples of uncatalysed metabolic reactions
