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STD 11 - 8. Cell the unit of life — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 8. Cell the unit of life1 Mark
MCQ
Which of the following statements are correct?
  • ✓
    $Na ^+/ K^ +$ pump is an example of active transport.
  • B
    In plant cells lipid like steroidal hormones are synthesized in $SER.$
  • C
    In plant cells, the vacuoles can occupy up to $10 \%$ of the volume of the cell.
  • D
    Chlorophyll and leucoplast are responsible for trapping light energy essential for photosynthesis.
✓

Answer

Correct option: A.
$Na ^+/ K^ +$ pump is an example of active transport.
a
In animal cells lipid like steroidal hormones are synthesized in $SER$. In plant cells, the vacuoles can occupy up to $90 \%$ of the volume of the cell. Chlorophyll and carotenoid pigments are responsible for trapping light energy essential for photosynthesis.

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