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Matter in Our Surroundings — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceMatter in Our Surroundings1 Mark
MCQ
Find out the false sentences.
  • A
    Golgi apparatus is involved with the formation of lysosomes.
  • B
    Nucleus, mitochondria and plastid have $DNA$; hence they are able to make their own structural proteins.
  • C
    Mitochondria is said to be the power house of the cell as $ATP$ is generated in them.
  • ✓
    Cytoplasm is called as protoplasm.
✓

Answer

Correct option: D.
Cytoplasm is called as protoplasm.
Along with the function of secretion of various enzyme proteins and producing vacoules, Golgi apparatus is also involved in the synthesis of cell wall, plasma membrane and lysosome.
Nucleus, mitochondria and plastids have their own genome (i.e., $DNA)$ and ribosomes. They are self replicating organelles i.e., they have power to divide and are able to synthesise their own structural protein (semi autonomous organelles). Mitochondria is site of cellulose respiration and synthesis of energy rich compounds $(ATP)$. Therefore it is called as power house of the cell. The part of cell which between the plasma membrane and nuclear envelope is called the cytoplasm.

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