Lyases

Q.

Which elements are essential for photophosphorylation?

1. Zn and I

2. Mg and P

3. Mg and P

4. Mn and Cl

Q. Name the type of enzyme involved in the following reaction:
S-G + S’ $\to$ S + S’-G

1. Isomerase
2. Transferase
3. Hydrolase
4. Lyase

Q. Enzymes that catalyse removal of groups from substrates by mechanisms other than hydrolysis leaving double bonds belongs to the category of

Q. Lyases catalyze the "lysis" of a bond. "Lysis" here means

1. breakage of a bond
2. conversion of a covalent bond to ionic bond
3. destruction of a compound
4. joining of two molecules