A piece of liver tissue is homogenized in a laboratory and the homogenate is subjected to sequential centrifugation at increasing speeds (expressed in $\times \mathrm{g}$ ). Centrifugation is used to separate sub-cellular components based on size and density. The steps carried out in the experiment are shown below.



Sediments 1,2 and 3 would most likely contain:

• A

  $\begin{array}{lll}\text { 1: Nuclei } & \text { 2: Ribosomes } & \text { 3: Mitochondria }\end{array}$
• Correct answer
  B

  1: Nuclei 2: Mitochondria 3: Lysosomes
• C

  1: Lysosomes $\quad$ 2: Mitochondria $\quad$ 3: Nuclei
• D

  1: Ribosomes $\quad$ 2: Nuclei $\quad$ 3: Mitochondria

Hence, the correct answer is option: 'B'.