Which type of pumps inhibits digitoxin in the membranes of heart cells, leading to increased myocardial contraction?

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#Question id: 933

#XL - Q Biochemistry

Industrially, nitrogen for use in fertilizers is converted to ammonia by ________.

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#Question id: 934

#XL - Q Biochemistry

Nitrogen fixation may occur via all of the following bacteria, except

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#Question id: 935

#XL - Q Biochemistry

Microorganisms capable of fixing nitrogen into a form usable by animals obtain the energy for this process from ________.

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#Question id: 936

#XL - Q Biochemistry

At neutral pH, the main ionic form of ammonia is ________.

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#Question id: 937

#XL - Q Biochemistry

Glutamate dehydrogenase has different roles in different organisms. Which of these listed is mismatched?

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#Question id: 938

#XL - Q Biochemistry

Physiological roles for glutamate dehydrogenase include all of the following, except