Biological Nitrogen Fixation
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
BIOXI12: MINERAL NUTRITION

336556 Read both the statements carefully and select the correct option.
Statement A :
Some nitrogen fixing microbes live as aerobes under free-living conditions (where nitrogenase is operational),
Statement B :
During nitrogen-fixing events, nitrogen fixing microbes become anaerobic (thus protecting the nitrogenase enzyme).

1 Only statement A is correct
2 Both statements are correct
3 Both statements are wrong
4 Only statement B is correct.
BIOXI12: MINERAL NUTRITION

336557 Which cells are divided for nodule formation?

1 Inner cortex
2 Pericycle
3 Endodermis
4 Both (1) and (2)
BIOXI12: MINERAL NUTRITION

336558 Read the following
A. Hydroxyl part of amino acid is replaced by another amino group.
B. Transfer of amino group from the keto acid to amino acid.
C. Hydroxyl part of keto acid is replaced by amino group.
D. Transfer of amino group from the amino acid to the keto group of keto acid.
Find the correct combination

1 A - Amide formation, D - Transamination
2 B - Transamination, C - Amide formation
3 C - Amide formation, D - Transamination
4 A - Amide formation, B - Nitrification
BIOXI12: MINERAL NUTRITION

336559 Observe the equation of amination and identify the appropriate enzyme which helps in this reaction.
\(\alpha-\) ketoglutaric acid \(+\mathrm{NH}_{4}^{+}+\mathrm{NADPH} \rightarrow\) glutamate \(+\mathrm{H}_{2} \mathrm{O}+\mathrm{NADP}\)

1 Glutamate hydrogenase
2 Glutamate dehydrogenase
3 Glutamate aminase
4 Glutamate Nitrase
BIOXI12: MINERAL NUTRITION

336556 Read both the statements carefully and select the correct option.
Statement A :
Some nitrogen fixing microbes live as aerobes under free-living conditions (where nitrogenase is operational),
Statement B :
During nitrogen-fixing events, nitrogen fixing microbes become anaerobic (thus protecting the nitrogenase enzyme).

1 Only statement A is correct
2 Both statements are correct
3 Both statements are wrong
4 Only statement B is correct.
BIOXI12: MINERAL NUTRITION

336557 Which cells are divided for nodule formation?

1 Inner cortex
2 Pericycle
3 Endodermis
4 Both (1) and (2)
BIOXI12: MINERAL NUTRITION

336558 Read the following
A. Hydroxyl part of amino acid is replaced by another amino group.
B. Transfer of amino group from the keto acid to amino acid.
C. Hydroxyl part of keto acid is replaced by amino group.
D. Transfer of amino group from the amino acid to the keto group of keto acid.
Find the correct combination

1 A - Amide formation, D - Transamination
2 B - Transamination, C - Amide formation
3 C - Amide formation, D - Transamination
4 A - Amide formation, B - Nitrification
BIOXI12: MINERAL NUTRITION

336559 Observe the equation of amination and identify the appropriate enzyme which helps in this reaction.
\(\alpha-\) ketoglutaric acid \(+\mathrm{NH}_{4}^{+}+\mathrm{NADPH} \rightarrow\) glutamate \(+\mathrm{H}_{2} \mathrm{O}+\mathrm{NADP}\)

1 Glutamate hydrogenase
2 Glutamate dehydrogenase
3 Glutamate aminase
4 Glutamate Nitrase
BIOXI12: MINERAL NUTRITION

336556 Read both the statements carefully and select the correct option.
Statement A :
Some nitrogen fixing microbes live as aerobes under free-living conditions (where nitrogenase is operational),
Statement B :
During nitrogen-fixing events, nitrogen fixing microbes become anaerobic (thus protecting the nitrogenase enzyme).

1 Only statement A is correct
2 Both statements are correct
3 Both statements are wrong
4 Only statement B is correct.
BIOXI12: MINERAL NUTRITION

336557 Which cells are divided for nodule formation?

1 Inner cortex
2 Pericycle
3 Endodermis
4 Both (1) and (2)
BIOXI12: MINERAL NUTRITION

336558 Read the following
A. Hydroxyl part of amino acid is replaced by another amino group.
B. Transfer of amino group from the keto acid to amino acid.
C. Hydroxyl part of keto acid is replaced by amino group.
D. Transfer of amino group from the amino acid to the keto group of keto acid.
Find the correct combination

1 A - Amide formation, D - Transamination
2 B - Transamination, C - Amide formation
3 C - Amide formation, D - Transamination
4 A - Amide formation, B - Nitrification
BIOXI12: MINERAL NUTRITION

336559 Observe the equation of amination and identify the appropriate enzyme which helps in this reaction.
\(\alpha-\) ketoglutaric acid \(+\mathrm{NH}_{4}^{+}+\mathrm{NADPH} \rightarrow\) glutamate \(+\mathrm{H}_{2} \mathrm{O}+\mathrm{NADP}\)

1 Glutamate hydrogenase
2 Glutamate dehydrogenase
3 Glutamate aminase
4 Glutamate Nitrase
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
BIOXI12: MINERAL NUTRITION

336556 Read both the statements carefully and select the correct option.
Statement A :
Some nitrogen fixing microbes live as aerobes under free-living conditions (where nitrogenase is operational),
Statement B :
During nitrogen-fixing events, nitrogen fixing microbes become anaerobic (thus protecting the nitrogenase enzyme).

1 Only statement A is correct
2 Both statements are correct
3 Both statements are wrong
4 Only statement B is correct.
BIOXI12: MINERAL NUTRITION

336557 Which cells are divided for nodule formation?

1 Inner cortex
2 Pericycle
3 Endodermis
4 Both (1) and (2)
BIOXI12: MINERAL NUTRITION

336558 Read the following
A. Hydroxyl part of amino acid is replaced by another amino group.
B. Transfer of amino group from the keto acid to amino acid.
C. Hydroxyl part of keto acid is replaced by amino group.
D. Transfer of amino group from the amino acid to the keto group of keto acid.
Find the correct combination

1 A - Amide formation, D - Transamination
2 B - Transamination, C - Amide formation
3 C - Amide formation, D - Transamination
4 A - Amide formation, B - Nitrification
BIOXI12: MINERAL NUTRITION

336559 Observe the equation of amination and identify the appropriate enzyme which helps in this reaction.
\(\alpha-\) ketoglutaric acid \(+\mathrm{NH}_{4}^{+}+\mathrm{NADPH} \rightarrow\) glutamate \(+\mathrm{H}_{2} \mathrm{O}+\mathrm{NADP}\)

1 Glutamate hydrogenase
2 Glutamate dehydrogenase
3 Glutamate aminase
4 Glutamate Nitrase