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Which of the following is not a characteristic that chloroplasts and mitochondria share?
A. |
They are both believed to originally be Eubacteria |
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B. |
They are both double-membrane structures. |
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C. |
They are capable of reproducing themselves. |
|
D. |
They are both part of the endoplasmic membrane system. |
|
E. |
They both have their own DNA. |
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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.Which of the following statements is False?a. Photosynthesis occurs in plastids.b. Chloroplasts extract energy from food storagemolecules.c. Mitochondria likely originated from prokaryotic cells.d. Plant cell walls are a type of extracellular matrix.Which of the following is true for both plant and animal cells? a) They both contain a cytoskeleton. b) They both have a cell wall. c) They both contain centrioles for cell division. d) They both contain chlorophyll.
- According to the endosymbiont theory: a) modern plant cells are able to carry out photosynthesis because their ancestors engulfed cyanobacteria. b) chloroplasts and mitochondria evolved from prokaryotic cells. c) ancestral eukaryotic cells acquired the ability to carry out aerobic respiration as a result of engulfing aerobic bacteria. d) a and c e) a, b and ca) 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 chloroplastsWhich of the following statements is NOT TRUE about the organization and function of chloroplasts and mitochondria? a. The pH is very low in the matrix of both organelles. b. Both cristae and grana are infoldings of the inner membrane. c. Inner membranes contain the transport proteins and ATP Synthases. d. Both organelles can divide independently of the cell.
- Which of the following is not true of ALL eukaryotic cells? explain why A. They have membrane-bound organelles B. They have chloroplasts C. They have a nucleus D. They have a cell membraneMitochondria most likely evolved from_______. a. a photosynthetic cyanobacterium b. cytoskeletal elements c. aerobic bacteria d. membrane proliferationThe origin of the photosynthetic eukaryote took place when a ______ was engulfed by a later eukaryote with mitochondria. Later eukaryote with mitochondria b) early eukaryote with chitin c) early prokaryote with ribosomes d) later prokaryote with chloroplasts
- What features of mitochondria are similar to bacteria? Select all that apply. A. Membrane-bound ribosomes B. Cellular machinery for photosynthesis C. Independent movement D. Circular DNA similar to plasmidsThere are several lines of evidence that suggest that chloroplasts and mitochondria were once independent organisms. Explain in your own words what that evidence is.Bacteria lack independent internal membrane systems, but are able to perform photosynthesis and respiration, both of which use membranes. They are able to perform these functions because a. they actually have internal membranes, but only for these functions. b. invaginations of the plasma membrane can provide an internal membrane surface. c. they take place outside of the cell between the membrane and the cell wall. d. they use protein-based structures to take the place of internal membranes.