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Mitochondria likely originated from
a. archaea.
b. invaginations of the cell membrane.
c. bacteria.
d. chloroplasts
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- Chloroplasts and mitochondria evolved from an endosymbioticrelationship involvinga. purple bacteria and cyanobacteria, respectively.b. cyanobacteria and purple bacteria, respectively.c. cyanobacteria.d. purple bacteria.a) Describe some characteristics and differences between prokaryotic and eukaryotic cells.b) How do the three domains of life differ from one another?c) Two of the organelles in eukaryotes, the mitochondrion and the chloroplast are believed to haveoriginated through a process of symbiosis. Discuss some of the theories of the origins ofmitochondria and chloroplastsWhat characteristic of mitochondria and chloroplasts makes themdifferent from other organelles and suggests they were onceindependent organisms?a. They have a specialized function in the cell.b. They are surrounded by a membrane.c. They contain enzymes.d. They have their own DNA and ribosomes.
- For each of the following indicate if they evolved once, twice, or perhaps several times. a) acquisition of mitochondria b) acquisition of chloroplast c) multicellularity d) origin of ribosomesChloroplasts of green algae evolved from_____ . a. cyanobacteria b. archaea c. red algaeA) single-cell organisms, Cyanobacteria B) mammal formed, fish, reptiles C) Cyanobacteria, single cell organisms D) multi-cellular, fish, amphibians
- What key aspects of chloroplasts(and mitochondria) are consistent with the theory that they mayhave once been bacteria? List three specific features.The endosymbiotic theory explains the origins of which of thefollowing components of a eukaryotic cell?a. mitochondriab. chloroplastsc. internal membranesd. All of these are correctOrganisms that have chloroplasts include blank and blank
- The evolution of the highly complex eukaryotic cell was possible because.. A) Mesosomes released enzymes in to the nucleus B) Two types of prokaryotic bacteria became endo symbiotic invaders of the complex cells C) The DNA of the eukaryote cell functions within the nucleoid area D) Chloroplasts were able to use 02 to conduct photosynthesis E) the space between the two layers of the nuclear membrane contained mitochondria Explain whyOne piece of supporting evidence for the endosymbiotic theory for the origin of eukaryotic cells is thata. eukaryotic cells have internal membranes.b. mitochondria and chloroplasts have their own DNA.c. Golgi bodies and endoplasmic reticulum were present in ancestral cells.d. the nuclear membrane could only have come from another cell.Which of the following consist of prokaryotic cells? a. bacteria and fungi b. archaea and fungi c. protists and animals d. bacteria and archaea