D Question 10 0.34 pts Which of the following is evidence that eukaryotic cells
ID: 140501 • Letter: D
Question
D Question 10 0.34 pts Which of the following is evidence that eukaryotic cells did not gain the ability to move by incorporating bacterial spirochetes into their cellular structure? Cilia lack DNA Some spirochetes have microtubes Free-living spirochetes exist today Patterns of cilia on some microbes can be inherited separately b Spirochetes have been found with the distinct 9+2 pattern of microtubes D | Question 11 0.33 pts Which of the following is evidence that plastids could originally have been free bacteria incorporated into a cell? Similarities between RNA of plastids and RNA of cytoplasm in Porphyridium o Plastids do not have their own DNA Simlarities between Prochloron and chloroplasts Plastids do not have membranes All plastids are green. D Question 12 0.33 pts Which of the following is evidence that mitochondria could originally have been free bacteria that were incorporated inside of another cell? No bacteria are known to invade other bacteria. Mitochrondria reproduce by dividing as the bacteria do Mitachondria use oxygen for metabolism. Mitochondria need the rest of the cell to code enzumes for their own RNA. Mitochondria do not have their own DNAExplanation / Answer
Ans10) The evidence is that cilia and flagella lack DNA.If they would have had DNA then it could be proved that they originated from another organism like spirochetes.
Ans11)Plastids can be said to have originated from free bacteria by looking at the similarities in structure of prochloron which is a free living photosynthetic prokaryote and the chloroplasts found in eukaryotes.
Ans12)Mitochondria could have earlier been free bacteria because there is similarity in which noth bacteria and mitochondria divide ,that is by binary fission.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.