AP BIOLOGY

THE CELL

STRUCTURE AND FUNCTION OF THE CELL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How are chloroplasts like mitochondria?
A
They can both use energy from sunlight.
B
They look alike.
C
They both contain DNA.
D
They are both found in animal cells.
Explanation: 

Detailed explanation-1: -Both chloroplasts and mitochondria are semi-autonomous organelles having their own DNA and protein-synthesizing mechanisms. Both of them help in the cytoplasmic inheritance of certain specific characters and both depend on nuclear genes for biosynthetic activities.

Detailed explanation-2: -Genes within chloroplasts and mitochondria derive from subsets of endosymbiont genes whose products regulate their own gene transcription. These genes remain, along with their protein products, within a single membrane-bound compartment.

Detailed explanation-3: -Chloroplasts, the organelles responsible for photosynthesis, are in many respects similar to mitochondria. Both chloroplasts and mitochondria function to generate metabolic energy, evolved by endosymbiosis, contain their own genetic systems, and replicate by division.

Detailed explanation-4: -The DNA molecules found in mitochondria and chloroplasts are small and circular, much like the DNA of a typical bacterium. There are usually many copies of DNA in a single mitochondrion or chloroplasts.

There is 1 question to complete.