Match Column -A with Column-B 

 

Column -A 

(Organelle)

 

Column -B

(Function)

i. Mitochondria a. Protein synthesis
ii. Ribosomes  b. Regulation of activity of a cell
iii. Nucleus c. Digestive system of a cell
iv. Lysosomes d. Energy generation

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SSC CGL 2022 Tier-I Official Paper (Held On : 05 Dec 2022 Shift 3)
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  1. (i - c), (ii - a), (iii - d), (iv - b) 
  2. (i - b), (ii - a), (iii - c), (iv - d) 
  3. (i - a), (ii - b), (iii - c), (iv - d) 
  4. (i - d), (ii - a), (iii - b), (iv - c) 

Answer (Detailed Solution Below)

Option 4 : (i - d), (ii - a), (iii - b), (iv - c) 
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PYST 1: SSC CGL - General Awareness (Held On : 20 April 2022 Shift 2)
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Detailed Solution

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The correct answer is (i - d), (ii - a), (iii - b), (iv - c).

Key Points

  • Mitochondria:
    • Mitochondria is a double membrane organelle.
    • Its number varies in the cell.
    • It consists of the outer and inner mitochondrial membranes.
    • It is present in the cytosol.
    • It can replicate itself and can form its copy.
    • It has its replication machinery.
    • Mitochondria is semiautonomous.
    • It has its DNA.
    • It cannot synthesize all its protein and depend on the cell nucleus for it through the term semiautonomous.
    • It contains enzymes that aid in metabolism.
    • It is the site of ATP formation and energy generation.
    • It consists of an Electron transport chain that is present on its membrane.
  • Ribosomes:
    • Ribosomes are made up of RNA and proteins
    • Ribosomes are present in both prokaryotic   and  eukaryotic cells. 
    • The prokaryotic cell contains 70S ribosomes and eukaryotic cells contain 80S ribosomes
    • It doesn't have any membrane around him. 
    • Cells have many organelles.
    • The primary function of RNA is to create proteins via translation.
    • RNA carries genetic information that is translated by ribosomes into various proteins necessary for cellular processes.
    • mRNA, rRNA, and tRNA are the three main types of RNA involved in protein synthesis.
  • Nucleus: 
    • The nucleus is a pivotal organelle responsible to regulate almost all forms of cellular activities.
    • Mostly, every type of cell that exists is categorized on the basis of the absence or presence of the nucleus within its cell (categorized either as a prokaryotic or eukaryotic cell.)
    • Following are the important nucleus function:
      • It contains the cell’s hereditary information and controls the cell’s growth and reproduction.
      • The nucleus has been clearly explained as a membrane-bound structure that comprises the genetic material of a cell.
      • It is not just a storage compartment for DNA but also happens to be the home of some important cellular processes.
      • First and foremost, it is possible to duplicate one’s DNA in the nucleus.
      • Producing two identical copies of the body or host is the first step in cell division, where every new cell will get its own set of instructions.
      • Secondly, the nucleus is the site of transcription.
      • Transcription creates different types of RNA from DNA
  • Lysosomes:
    • Lysosomes are small, spherical, sac-like structures that contain several digestive enzymes enclosed in a membrane.
    • They help in the digestion of foreign substances and worn-out cell organelles.
    • They provide protection against bacteria and viruses.
    • They help to keep the cell clean.
    • During the disturbance in cellular metabolism, for example, when the cell gets damaged, lysosomes may burst and the enzymes digest their own cell.
    • Therefore, lysosomes are also known as suicide bags of a cell.

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