Which of the following is true for Non- Competitive Inhibition?

1.	It cannot be overcome by increasing the concentration of the substrate
2.	Cyanide kills an animal by inhibiting cytochrome oxidase through non competitive inhibition
3.	It does not interfere with the binding of the substrate to enzymes
4.	All of these

Which of the following class of enzyme is used for catalysing hydrolysis of ester, ether, peptide bonds?

Which of the following class of enzyme catalyse removal of groups from substrates by mechanism other than hydrolysis leaving double bonds?

Which of the following class of enzyme catalyse the linking together of 2 compounds?

1. Lyases

2. Ligases

3. Hydrolases

4. Transferases

Which of the following class of enzyme catalyse the joining of C-O and hydrolysis of C-N bonds respectively?

Which of the following class of enzymes helps in catalysing a transfer of a group (other than hydrogen) between a pair of substrates?

1. Ligases

2. Lyases

3. Transferases

4. Hydrolases

Electron transferring enzymes belongs to which class of enzymes

1. Transferases

2. Oxidoreductases

3. Isomerases

4. Lyases

The non- protein constituent of the enzymes are called

1. Apoenzyme

2. Holoenzyme

3. Cofactors

4. both A and C

The  protein constituent of the enzymes are called

1. Apoenzyme

2. Prosthetic group

3. Co-enzymes

4. Holoenzyme

Which of  the following are co-factors?

1. Co-enzymes

2. Metal ions

3. Posthetic groups

4. All of these