Enzymes: types, properties, action, classification
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See all →- The protein portion of an enzyme is called : Answer: 3. Apoenzyme Key idea: A conjugated enzyme has a protein part and a non-protein part. The protein part is the apoenzyme. The non-pro... 1
- Name the class of enzyme that usually catalyze the following reaction :S – G + S# → S + S# – GWhere, G → a group other than hydrogenS → a substrateS# → another substrate Answer: 3. Transferase Key idea: Transferases move a group (not hydrogen) from one substrate to another. The reaction S-G + S# → S + S#-G tr... 1
- Which one of the following enzymes contains 'Haem' as the prosthetic group? Answer: 4. Catalase Key idea: Catalase contains a haem group as its prosthetic group. RuBisCO has none, carbonic anhydrase uses zinc, and su... 1
- Regarding catalytic cycle of an enzyme action, select the correct sequential steps :A. Substrate enzyme complex formation.B. Free enzyme ready to bind with another substrate.C. Release of products.D. Chemical bonds of the substrate broken.E. Substrat… Answer: 2. E, A, D, C, B Key idea: catalytic cycle of an enzyme. Substrate binds to the active site (E) → enzyme-substrate complex forms (A)... 1
- Match List I with List II :List I:A. LipaseB. NucleaseC. ProteaseD. AmylaseList II:I. Peptide bondII. Ester bondIII. Glycosidic bondIV. Phosphodiester bondChoose the correct answer from the options given below : Answer: 4. A-II, B-IV, C-I, D-III Key idea: each enzyme breaks a particular bond. Lipase - ester bond in fats (II). Nuclease - phosphodieste... 1
- Inhibition of Succinic dehydrogenase enzyme by malonate is a classical example of: Answer: 4. Competitive inhibition Key idea: malonate looks like succinate, so it competes for the active site. Malonate is a structural anal... 1