BIOLOGY-TEXT
5th Edition
ISBN: 9781260169621
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 4, Problem 10TY
Which of the following observations would not be considered evidence for the endosymbiosis theory?
- a. Mitochondria and chloroplasts have genomes that resemble smaller versions of bacterial genomes.
- b. Mitochondria, chloroplasts, and bacteria all divide by binary fission.
- c. Mitochondria, chloroplasts, and bacteria all have ribosomes.
- d. Mitochondria, chloroplasts, and bacteria all have similar sizes and shapes.
- e. All of the above are considered evidence for the theory.
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According to the theory of endosymbiosis, organelles, like mitochondria and chloroplasts, were once free-living cells that were absorbed into another cell. The relationship benefited both cells to stay together. What evidence do scientists observe today that supports the theory of endosymbiosis? Select all that apply.
a
There are ribosomes found inside mitochondria and chloroplasts just like there are inside cells.
b
Looking inside mitochondria and chloroplasts, one will find that they each contain their own DNA.
c
Mitochondria and chloroplasts are found inside all cell types.
d
Mitochondria and chloroplasts each have a membrane around them just like a cell would.
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
Which of the following is NOT evidence for endosymbiosis?
A. Bacteria and mitochondria both have nuclei.
B. Bacteria and mitochondria both have ribosomes.
C. Bacteria and mitochondria both have circular DNA.
OD. Bacteria and mitochondria both reproduce via binary fission
E. Bacteria and mitochondria both have membranes.
Chapter 4 Solutions
BIOLOGY-TEXT
Ch. 4.1 - What properties of deep-sea vents made them...Ch. 4.1 - Which protobiont seems most similar to todays...Ch. 4.1 - Core Skill: Connections Look back at Figure 3.11....Ch. 4.1 - Prob. 3CCCh. 4.2 - Prob. 1CCCh. 4.2 - Prob. 2CCCh. 4.3 - Prob. 1CSCh. 4.3 - Prob. 1CCCh. 4.3 - Prob. 2CSCh. 4.4 - Prob. 1CS
Ch. 4.4 - Describe the type of movements that occur between...Ch. 4.4 - Prob. 2CSCh. 4.5 - Prob. 1CCCh. 4.5 - Prob. 1CSCh. 4.5 - If we consider the Golgi apparatus as three...Ch. 4.5 - The Nucleus and Endomembrane System Experimental...Ch. 4.5 - Prob. 2EQCh. 4.5 - Prob. 3EQCh. 4.5 - Prob. 3CCCh. 4.6 - Prob. 1CCCh. 4.6 - Core Skill: Connections Look ahead to Figure...Ch. 4.7 - Prob. 1CCCh. 4.7 - Prob. 2CCCh. 4 - The cell theory states that a. all living things...Ch. 4 - Prob. 2TYCh. 4 - Prob. 3TYCh. 4 - Prob. 4TYCh. 4 - Each of the following is part of the endomembrane...Ch. 4 - Prob. 6TYCh. 4 - Functions of the smooth endoplasmic reticulum...Ch. 4 - Prob. 8TYCh. 4 - Prob. 9TYCh. 4 - Which of the following observations would not be...Ch. 4 - What are the four stages that led to the origin of...Ch. 4 - Explain how motor proteins and cytoskeletal...Ch. 4 - Prob. 3CQCh. 4 - Discuss the roles of the genome and proteome in...Ch. 4 - Prob. 2COQ
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- When comparing a eukaryotic organism with a prokaryotic organism, which of the following statements is TRUE? A. Eukaryotic organelles reproduce sexually, while prokaryotic organisms reproduce asexually B. The cells of eukaryotic organisms have membrane-bound nuclei while the cells of prokaryotic organism do not. C. Eukaryotic organisms need oxygen while prokaryotic organism do not. D. Prokaryotic organisms can make their own food while eukaryotic organisms cannot. E. Eukaryotic and prokaryotic organisms are actually one and the same variation in terminologies can be attributed to exactly ambiguity.arrow_forwardHorizontal gene transfer probably started soon after endosymbiosis. It has resulted in genes being moved from the mitochondrion to the nucleus. What is a reasonable explanation for why some genes still remain in the mitochondria? A. The products of those genes are rapidly damaged and need to be quickly replaced. B. The products of those genes are not required for organelle function. C. The ability for lateral gene transfer ended about a billion years ago and some genes simply got “stuck” within mitochondria. D. The products of those genes are only needed in the mitochondria.arrow_forwardOne 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.arrow_forward
- Which of the following statements is true? a. Linear chromosome structures observed in a karyotype are actually pairs of sister chromatids. b. Prokaryotic and eukaryotic cells divide through binary fission. c. Because chromosomes of prokaryotes are smaller than eukaryotic chromosomes, prokaryotic nuclei are also smaller. d. The genetic information found in a eukaryotic chromosome makes up the cell's entire genome.arrow_forwardWhich of the following is true? a. Prokaryotic cells are smaller in size but metabolically more complicated. b. Eukaryotic cells are compartmentalized and with the DNA (genetic material) found in the nuceloid.arrow_forwardLike all eukaryotes, the protozoan Giardia has undergone lateral gene transfer as shown by the presence of the gene cpn60 in its nuclear genome. What does cpn60 do in Giardia? A. It has no known function. B. It codes for an essential transcription factor. C. It codes for a component of the electron transport chain. D. It codes for a molecular chaperone that aids in the folding of mitochondrial protein.arrow_forward
- Scientists explain the existence of mitochondria and chloroplasts with the endosymbiotic hypothesis. What is the endosymbiotic hypothesis? Give two pieces of evidence for it.arrow_forwardWhich of the following applies the theory that cells are the basic unit of structure and functioning of an organism? A.) Cells undergo mitotic division B.) The flower produces seedpod C.) The red blood cell lack nuclei to carry more oxygen C.) The bats evolve a wing in ordee to flyarrow_forwardMitochondria are thought to be the descendants of certain alpha proteobacteria. They are, however, no longer able to lead independent lives because most genes originally present in their genome have moved to the nuclear genome. Which phenomenon accounts for the movement of these genes? Group of answer choices A. recombination B. conjugation C. translation D. endosymbiosisarrow_forward
- which of the following are evidence that chloroplasts and mitochondria originated by endosymbiosis? A they have bacterial type DNA molecules, to cyanobacteria and Rickettsiarespectively B. they have bacterial type ribosomes c. chloroplasts and mitochondria replicate independently from the cell (they are "semiindependent) D. All of the above e. None the above Find the mismatched pair. A. Prokaryotic Organisms --Naked DNA in space denominated the nucleoid B. Eukaryotic Organisms-genomic DNA c. Prokaryotic Diganismspolycistronic is unmodified prior to translation D. Eukaryotic Organisms-monocistronic mRNA is modified before being translated E. Prokaryotic Organisms-generaly interrupted by introns (non-protein-coding sequences)arrow_forwardThrough what process did eukaryotic cells gain chloroplasts and mitochondria? a. engulfment b. endosymbiosis c. endocytosis d. phagocytosis e. conjugationarrow_forwardAll living things are divided into three domains: bacteria, archaea, and eukarya. They have several traits that are specific to each domain or shared across the domains. Based on this information, what traits would the last universal common ancestor (LUCA) be expected to have? A. Nuclear envelope, introns in genes, and peptidoglycan in cell walls. B. Histones associated with DNA, circular chromosome, and peptidoglycan in cell walls. C. Unbranched hydrocarbons in membrane lipids, histones associated with DNA, and introns in genes. D. Circular chromosome, unbranched hydrocarbons in membrane lipids, and one kind of RNA polymerase.arrow_forward
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Endosymbiotic Theory; Author: Amoeba Sisters;https://www.youtube.com/watch?v=FGnS-Xk0ZqU;License: Standard Youtube License