To protect nitrogenase from oxygen, which of the following in nodule will act as scavenger

(1) Leg-haemoglobin

(2) Anaerobic mode of life

(3) Both 1. and 2.

(4) Myoglobin

(1) Always free living

(2) Generally free living aerobes but during nitrogen fixing event it becomes anaerobic

(3) Always anaerobic

(4) Generally anaerobic but under nitrogen fixing event, it becomes aerobic

(1) Respiration of the host cells

(2) Oxidation of the host cells

(3) Respiration of the bacterial cells

(4) Oxidation of the bacterial cells

1. Reductive amination

2. Transamination

3. Oxidative amination

4. All of the above

1. Conversion of ammonia to alpha ketoglutarate and forms glutamate

2. Ammonia reacts with alpha ketoglutarate and forms glutamate

3. Ammonia reacts with glutamate and forms alpha-ketoglutaric acid

4. Conversion of ammonia to glutamate

(1) Glutamate oxidase

(2) Glutamate dehydrogenase

(3) Glutamate carboxylase

(4) Aspartate oxidase

(1) NADH gets converted to NAD⁺

(2) NADPH gets converted to NADP

(3) NADP gets converted to NADPH

(4) NAD⁺ gets converted to NADH

(1) Involves the transfer of amino group from one amino acid to the keto group of keto acid.

(2) Involves the transfer of amino group from one amino acid to the amino group of another amino acid.

(3) Involves the transfer of keto group from one amino acid to the keto group of keto acid.

(4) Involves the transfer of keto group of keto acid to the keto group of keto acid.

(1) Transaminase

(2) Dehydrogenase

(3) Transaminase reductase

(4) Reductive dehydrogenase

(1) Glutamate

(2) Alanine

(3) Glycine

(4) Lysine