Organelles are compartments inside the cells. eukarya have many more than Bacteria and Archea. a. Name three major organelles that cells in the Eukarya developed and which were still missing in the cells of the Prokarya and Archea? ……………………….. …………………… ……………………….. b. How did the eukaryote cell get mitochondria or chloroplasts? .................................................................. c. How did the eukaryote cell get a nuclear envelop? .....................

Organelles are compartments inside the cells. eukarya have many more than Bacteria and Archea. a. Name three major organelles that cells in the Eukarya developed and which were still missing in the cells of the Prokarya and Archea? ……………………….. …………………… ……………………….. b. How did the eukaryote cell get mitochondria or chloroplasts? .................................................................. c. How did the eukaryote cell get a nuclear envelop? .....................

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter10: Chromosomes, Mitosis, And Meiosis

Section: Chapter Questions

Problem 2TYU: Test Your Understanding 2. At which of the following stages do human skin cell nuclei have the same...

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What is the endosymbiotic hypothesis about the origin of mitochondria? What are the molecular facts that support the hypothesis? To which other cellular organelles can the hypothesis also be applied?
What types of biological abilities can be combined to create more capable, more complex cells? How does the presecence of different types of ribosomes inside a eukaryotic cell strengthen the endosymbiotic theory? How does chloroplasts and mitochondria found within a cell have two membranes? How does the emergence of endosymbotic theory change the way humans view microorganisms? Will people be comfortable imaginning that the life functions of pants and animals, including their own, are actually dependent on the coexistence of many different microscopic pieces?
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
Name three uniquely eukaryotic organelles or structural elements that primarily provide structural support. How are the things you named related (besides providing support), if at all?
In the late 1960s (and since), Lynn Margulis (and others) provided considerable evidence for the endosymbiotic theory of the origin of various organelles in eukaryotic cells.What is the endosymbiotic theory? Which two eukaryotic organelles were proposed to have arisen as endosymbionts? What evidence did Margulis present to support each organelle as an endosymbiont?
You discover a new multicellular, heterotrophic, eukaryotic organism. What is one characteristic that will allow you to classify this new organism as an animal? Group of answer choices a. cell walls made of chitin b. structural proteins c. multicellular haploid stage in its life cycle d. cell walls made of cellulose e. external digestion
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.
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.
In the course of evolution of the eukaryotic cell, the ability to store newly synthesized molecules is associated with: a) the nucleus of prokaryotes, b) vesicles that contain enzymes that perform dehydration synthesis, c) lysosomes, d) the nucleoid area of the cytoplasm. e) proteins produced outside of the Endoplasmic reticulum.
Evolutionary microbiologists developed a theory about a common ancestor for all eukaryotic cells. Below is a model of the theorized changes during the origin of eukaryotic cells. Prokaryotes are not capable of phagocytosis, or engulfing outside particles by creating a pocket in the cell membrane. Which of the following changes in early prokaryotes could be predicted to result in the emergence of eukaryotic organisms? A - the development of genetic transfer mechanisms in prokaryotes B - the evolution of predatory or parasitic relationships in prokaryotes C - the emergence of collections of cells functioning together in prokaryotes D = the expansion of internal structures to support larger individual cells in prokaryotes
The organelles known as Mitochondria and Chloroplasts, found inside the cells of multicellular plants and/or animals, are theorized to have once been independent prokaryotic cells which were co-opted by early eukaryotic cells and, basically, put to work. The structure of the organelles themselves is one line of evidence for this theory, but within the organelles themselves they have their own ___________________________ which is a second, strong line of evidence for their past independence. Group of answer choices set of amino acids nuclear membrane discrete DNA & RNA regulatory proteins
You discover a new multicellular, heterotrophic, eukaryotic organism. What is one characteristic that will allow you to classify this new organism as an animal? Group of answer choices cell walls made of chitin structural proteins multicellular haploid stage in its life cycle cell walls made of cellulose external digestion