Which of the following is incorrect?
1. Enzymatic activity is maximum at its optimim pH and temperature.
2. Enzymatic activity declines both below and above the optimum value.
3. Low temperatures destroys enzymatic activity
4. High temperatures destroys enzymatic activity
The competitive inhibitor of enzyme succinic dehydrogenase is
1. succinate
2. malonate
3. malate
4. mannose
Which of the following class of enzyme is used for catalysing hydrolysis of ester, ether, peptide bonds?
1. Lyases
2. Ligases
3. Hydrolases
4. Both A and B
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?
1. Lyases and Ligases
2. Ligases and Lyases
3. Ligases and Hydrolases
4. Lyases and Hydrolases
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