In mitochondria, protons accumulate in the  from Biology Cell

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 Multiple Choice QuestionsMultiple Choice Questions

201.

Select the correct matching in the following pairs

  • Smooth ER — Oxidation of phospholipids

  • Smooth ER — Synthesis of lipids

  • Rough ER — Synthesis of glycogen

  • Rough ER — Synthesis of glycogen

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202.

True nucleus is absent in 

  • Anabaena

  • Mucor

  • Vaucheria

  • Vaucheria

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203.

Which one of the following is not an inclusion body found in prokaryotes?

  • Phosphate granule

  • Cyanophycean granule

  • Glycogen granule

  • Glycogen granule

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204.

Transmission tissue is characteristic feature of

  • hollow style

  • solid style

  • dry stigma

  • dry stigma

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205.

DNA is not present in

  • chloroplast

  • ribosomes

  • nucleus

  • nucleus

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206.

Nuclear envelope is derivative of

  • smooth endoplasmic reticulum

  • membrane of Golgi complex

  • microtubules

  • microtubules

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207.

Important  site for formation of glycoproteins and glycolipids is

  • Golgi apparatus 

  • plastid

  • lysosome

  • lysosome

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208.

In mitochondria, protons accumulate in the 

  • outer membrane

  • inner membrane

  • intermembrane space

  • intermembrane space


C.

intermembrane space

During the passage of two electrons from one an electron carrier (NADH) to another on ETC, enough energy is liberated that pumps out three pairs of protons (H+) from the matrix (inner chamber) to the outer chamber (intermembrane space) of mitochondria.The accumulation of protons in intermembrane space results in their higher concentration than in the matrix creating a proton gradient (ΔpH) and electric potential across the membrane.

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209.

Which one of the following is not considered as a part of the endomembrane system? 

  • Golgi complex

  • Peroxisome

  • Vacuole

  • Vacuole

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210.

The figure below shows the structure of a mitochondrion with its four parts labelled (A), (B), (C) and (D). Select the part correctly matched with its function


  • D - outer membrane -gives - rise to inner membrane by splitting

  • B - Inner membrane - forms infolding called cristae

  • C - Cristae - possess single circular DNA molecule and ribosomes

  • C - Cristae - possess single circular DNA molecule and ribosomes

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