Which of the following statements supports the concept of the endosymbiotic theory? A. Proteins may be trafficked within the endomembrane system. B. Ribosomes are present in the cytoplasm of prokaryotic cells and eukaryotic cells. C. Chloroplasts have many features in common with bacteria. D. Mitochondria can fuse together to form larger organelles within eukaryotic cells.

Which of the following statements supports the concept of the endosymbiotic theory? A. Proteins may be trafficked within the endomembrane system. B. Ribosomes are present in the cytoplasm of prokaryotic cells and eukaryotic cells. C. Chloroplasts have many features in common with bacteria. D. Mitochondria can fuse together to form larger organelles within eukaryotic cells.

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter13: Diversity Of Microbes, Fungi, And Protists

Section: Chapter Questions

Problem 9RQ: Mitochondria most likely evolved from_______. a. a photosynthetic cyanobacterium b. cytoskeletal...

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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 ribosomes
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 chloroplasts
One 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.
The endosymbiotic theory explains the:a. origin of the first prokaryotic cells.b. origins of mitochondria and chloroplasts in eukaryotes.c. evolutionary relationship between animals, plants, and fungi.d. method of reproduction in protists.
The endosymbiotic theory argues that prokaryotes become some of the organelles of early eukaryotic cells. All of the following support this hypothesis Except: A. The mitochondria and chloroplasts have their own DNA and are nearly idential to some free-living prokaryotes b. Mitochondria and chloroplasts are nearly idential to some free-living prokaryotes. c. Mitochondria and chloroplasts have their own DNA d. The vacuoles can come and go across the plasma membrane
Describe the features of mitochondria and chloroplasts that support the endosymbiotic theory.
Mitochondria most likely evolved from_______. a. a photosynthetic cyanobacterium b. cytoskeletal elements c. aerobic bacteria d. membrane proliferation
What 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.
The concept of endosymbiosis as applied to chloroplast and mitochondria found in eukaryotes: a) is based on evidence that Chloroplasts and Mitochondria were originally prokaryotes, b) changes present day animals into plants, c) explains how chemical evolution caused the appearance of life, d) allowed chloroplasts to carry out aerobic metabolism, e) all are true.
A scientist discovered a new group of unicellular organisms that lack mitochondria but possess an organelle related to the endoplasmic reticulum and is involved in energy production. The scientist hypothesizes that this organelle might be a missing link in the evolution of mitochondria. A) Do you agree with this hypothesis? Explain. B) Based on the available evidence, what is the most likely hypothesis for the origin of mitochondria? Provide four pieces of evidence to support this theory and justify why they are valid.
Compare and contrast mitochondria and chloroplasts in relation to the Endosymbiotic Theory.
Which of the following is evidence that eukaryotes and prokaryotes share a common ancestor? a.All eukaryotes and prokaryotes use organic molecules as an energy source. b.All eukaryotes and prokaryotes are capable of mitosis. c.All eukaryotes and prokaryotes contain ribosomes. d.All eukaryotes and prokaryotes contain linear DNA.