The process by which atmospheric nitrogen is converted to ammonia by industrial process is: MCQ with Answer and Explanation

The process by which atmospheric nitrogen is converted to ammonia by industrial process is:
A. Ammonification
B. Haber-Bosch process
C. Nitrification
D. Denitrification
Answer: Option B
Solution (By JKSSB Mock Tests)
The Haber-Bosch process synthesizes ammonia from N₂ and H₂ under high temperature and pressure with a catalyst. It is the main industrial nitrogen fixation for fertilizers. Biological fixation is by microbes.

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The structure that produces cerebrospinal fluid is the:
A. Dura mater
B. Choroid plexus
C. Subarachnoid space
D. Arachnoid villi

Correct Answer: Option B


Explanation:
The choroid plexus, a network of ependymal cells and capillaries in the ventricles of the brain, continuously produces CSF by filtration and secretion. CSF circulates through ventricles and the subarachnoid space and is reabsorbed by arachnoid villi into the venous system. Dura mater is the outer protective membrane.

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In which phase of mitosis does the nuclear envelope reform around the chromosomes?
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Correct Answer: Option B


Explanation:
During telophase, the chromatids reach the poles, decondense, and the nuclear envelope reassembles around each set, forming two daughter nuclei. The spindle disappears. Prophase involves nuclear envelope breakdown, metaphase aligns chromosomes, and anaphase separates chromatids. Cytokinesis often overlaps with telophase, dividing the cytoplasm.

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The 'Hormone Adiponectin' is a protein hormone secreted exclusively by adipose (fat) tissue. Unlike most other adipokines, its levels are inversely related to body fat. Its primary functions include:
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Correct Answer: Option B


Explanation:
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