THE CELL
STRUCTURE AND FUNCTION OF THE CELL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The organelles contain free ribosomes and circular DNA
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The organelles produce their own energy.
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The organelles have a double membrane
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The organelles grow and reproduce somewhat independently
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Detailed explanation-1: -"The exterior structure similar to bacterial cell walls” IS NOT an evidence in favour of the endosymbiotic theory. Both mitochondria and chloroplasts are double membrane bound.
Detailed explanation-2: -The chromosome similarity of organelles (mitochondria and chloroplast) does not support the endosymbiotic theory and having non-coding DNA.
Detailed explanation-3: -Explanation: Endosymbiotic theory had supported the fact that mitochondria have evolved in eukaryotes by the symbiotic association of bacteria. Mitochondria and bacteria differ in size is incorrect as the size of mitochondria and bacteria is approximately same.
Detailed explanation-4: -Evidence for Endosymbiosis Evidence that supports the extracellular origins of these organelles can be seen by looking at certain key features: Membranes (double membrane bound) Antibiotics (susceptibility) Division (mode of replication)