Statement 1: Nuclear membrane and the endoplasmic reticulum were originally formed from the invaginations of the cell membrane.
Statement 2: Mitochondria and chloroplast are the results of a symbiotic association of bacteria with primitive pre-eukaryotic cells.
Statement 1: Nuclear membrane and the endoplasmic reticulum were originally formed from the invaginations of the cell membrane.
Statement 2: Mitochondria and chloroplast are the results of a symbiotic association of bacteria with primitive pre-eukaryotic cells.
The correct option is C Both the statements are true
Membrane-enclosed organelles are thought to have evolved in at least two ways. The nuclear membranes and the membranes of the ER, Golgi apparatus, endosomes, and lysosomes most likely originated by invagination of the plasma membrane.
There is a similarity in the genomes of mitochondria and chloroplast to those of bacteria and some of their proteins also are similar. This strongly suggest that both these organelles evolved from bacteria that were engulfed by primitive pre-eukaryotic cells with which they initially lived in symbiosis.
Both the statements are true
Membrane-enclosed organelles are thought to have evolved in at least two ways. The nuclear membranes and the membranes of the ER, Golgi apparatus, endosomes, and lysosomes most likely originated by invagination of the plasma membrane.
There is a similarity in the genomes of mitochondria and chloroplast to those of bacteria and some of their proteins also are similar. This strongly suggest that both these organelles evolved from bacteria that were engulfed by primitive pre-eukaryotic cells with which they initially lived in symbiosis.
