Same chapter3 marksDifficulty: Medium
State two functions each of the endoplasmic reticulum, the Golgi apparatus and the lysosome.
Cell: The Unit of Life
3 marksDifficulty: Medium
Why are mitochondria and chloroplasts called semi-autonomous organelles?
Original Khojo Papers practice question — not from a past board paper.
Answer
Both have their own circular DNA and 70S ribosomes and can synthesise some of their own proteins, and both divide by fission independently of the division of the cell. They nevertheless depend on the nucleus for most of their proteins, so their autonomy is only partial.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
These features are the basis of the endosymbiotic theory of their origin.
Related questions
From the same topic and chapter, at a similar level.
Same chapter3 marksDifficulty: Medium
What are ribosomes made of, and what is the difference between 70S and 80S ribosomes?
Cell: The Unit of Life
Same chapter3 marksDifficulty: Medium
Describe the fluid mosaic model of the plasma membrane.
Cell: The Unit of Life
Same chapter3 marksDifficulty: Medium
State four differences between a prokaryotic and a eukaryotic cell.
Cell: The Unit of Life
Same chapter2 marksDifficulty: Easy
State the three parts of the cell theory and name the scientists associated with it.
Cell: The Unit of Life
Same subject3 marksDifficulty: Medium
State three characteristics of bryophytes and name one example.
Plant Kingdom