Multiple choice

Mitochondria causes maximum cell’s supply of ATP and their quantity within a cell is simply associated with metabolic activity. Cellular respiration is performed out of the mitochondria. Mitochondrial matrix composed of variety of enzymes that play a major part in metabolic pathway. These involve carbohydrate, lipid, amino acids, urea and heme biosynthesis.

Which of following mechanism is utilised by mitochondria to transform energy in cellular metabolism?

  1. Mitochondria trap chemical energy and reserve it in form of high energy lipid bonds.

  2. Transfer of electrons from NADH to O2 occurs in inter membrane space.

  3. Mitochondria control an electrochemical protein gradient which represents stored energy.

  4. The respiratory chain pumps protons into mitochondrial matrix.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mitochondria is membrane-closed structure present in maximum eukaryotic cells control an electrochemical protein gradient, which represents stored energy.

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