Question : Copper is associated with ____mitochondrial enzymes.
Option 1: Cytochrome oxidase
Option 2: Succinic dehydrogenase
Option 3: Catalase
Option 4: Acid phosphatase
Correct Answer: Cytochrome oxidase
Solution : The correct option is Cytochrome oxidase.
Copper is linked to cytochrome c oxidase, a key mitochondrial enzyme in the electron transport chain of cellular respiration. Cytochrome c oxidase is essential in the last phase of oxidative phosphorylation, where it enables the transfer of electrons to molecular oxygen, resulting in the synthesis of water, and ATP (adenosine triphosphate), the cell's principal energy currency.
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Question : Which compound structure includes a saturated short-chain fatty acid with 4-carbon molecules, commonly found in esterified form in animal fats and plant oils?
Option 1: Butyric acid
Option 2: Propionic acid
Option 3: Succinic acid
Option 4: Lactic acid
Question : The acid used in lead storage cells is:
Option 1: Phosphoric acid
Option 2: Hydrochloric acid
Option 3: Nitric acid
Option 4: Sulphuric acid
Question : In what ratio must 25% hydrochloric acid be mixed with 60% hydrochloric acid to get a mixture of 40% hydrochloric acid?
Option 1: 5 : 12
Option 2: 4 : 3
Option 3: 3 : 4
Option 4: 12 : 5
Question : Vinegar made by fermentation from cane sugar contains:
Option 1: Palmitic acid
Option 2: Lactic acid
Option 3: Citric acid
Option 4: Acetic acid
Question : Which acid makes the atmosphere of Venus have thick white and yellowish clouds?
Option 1: Sulphuric acid
Option 2: Nitric acid
Option 3: Acetic acid
Option 4: Hydrochloric acid
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