Which of the following does not happen during nodule formation?

(1) Rhizobium bacteria contact a susceptible root hair, divide near it

(2) Successful infection of root hair causes it to curl

(3) Infected thread carries the bacteria to the inner cortex

(4) The bacteria get modified into rod shaped bacteroides and cause inner cortical and endodermal cells to divide

Subtopic:  Nitrogen Fixation | Nitrogen Metabolism: 1 | Nitrogen metabolism |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Nodule formation is a result of

(1) Division and growth of cortical cells

(2) Division and growth of pericycle cells

(3) Division and growth of endodermal cells

(4) Both A and B

Subtopic:  Nitrogen Fixation |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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To produce two molecules of ammonia, how many ATP are hydrolysed?

(1) 16

(2) 8

(3) 4

(4) 32

Subtopic:  Nitrogen Fixation | Nitrogen Metabolism: 1 | Nitrogen metabolism |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Enzyme Nitrogenase is

(1) Highly sensitive to the molecular oxygen

(2) Least sensitive to the molecular oxygen

(3) Highly sensitive to carbon dioxide

(4) Least active enzyme

Subtopic:  Nitrogen Fixation | Nitrogen Metabolism: 1 | Nitrogen Metabolism:2 | Nitrogen metabolism | Nitrogen Metabolism |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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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 A and B

(4) Myoglobin

Subtopic:  Nitrogen Fixation | Nitrogen Metabolism: 1 | Nitrogen Metabolism:2 | Nitrogen metabolism | Nitrogen Metabolism |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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The nitrogen fixing bacteria are

(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

Subtopic:  Nitrogen Fixation | Nitrogen Metabolism: 1 | Nitrogen Metabolism:2 | Nitrogen metabolism | Nitrogen Metabolism |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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The energy required, for the process of nitrogen metabolism comes from

(1) Respiration of the host cells

(2) Oxidation of the host cells

(3) Respiration of the bacterial cells

(4) Oxidation of the bacterial cells

Subtopic:  Nitrogen Fixation | Nitrogen Metabolism: 1 | Nitrogen Metabolism:2 | Nitrogen metabolism | Nitrogen Metabolism |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Most of the plants can assimilate……a….. and ……b… and…c. is quite toxic to plants and hence cannot accumulate in them.
Find the wrong one.
1. a. Ammonium ions
2. c. Ammonium ions
3. b. Nitrate
4. c. Nitrite

Subtopic:  Nitrogen Metabolism: 1 | Nitrogen Metabolism:2 | Nitrogen metabolism | Nitrogen Metabolism |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Ammonium is used to synthesise amino acids in plants which of the following is not a way?

(1) Reductive Amination

(2) Transamination

(3) Oxidative amination

(4) All of these

Subtopic:  Nitrogen Metabolism: 1 | Nitrogen Metabolism:2 | Nitrogen metabolism | Nitrogen Metabolism |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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Reductive animation is

(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

Subtopic:  Nitrogen Metabolism: 1 | Nitrogen Metabolism:2 | Nitrogen metabolism | Nitrogen Metabolism |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

Difficulty Level: