Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 5.5, Problem 2R
Summary Introduction
To review:
The aspect of the endosymbiotic theory that is explained when the mitochondria become nonfunctional if removed from the cell.
Introduction:
Endosymbiosis is a theory that explains how eukaryotes originated from the prokaryotes in the prebiotic Earth. It says that organelles such as the chloroplast and the mitochondria were free-living organisms that were ingested or endocytosed by the prebiotic bacteria. This lead to the formation of modern-day eukaryotes.
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Life: The Science of Biology
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- You observe organelles moving within the cytoplasm of a cell and conclude that this movement must be associated with either microtubules or actin filaments. The reason that intermediate filaments could not be associated with this motility phenomena is because _________? They are not intrinsically polar The cell can not control their assembly They are found only at certain cell junctions They can not interact with membranes They can not disassemblearrow_forwardCell Structure and Function Match the following organelles to their descriptions 1. 2. 3. 4. 5. cell wall 8. endoplasmic reticulum ribosome 9. central vacuole 6. chloroplasts cell membrane 7. nucleus Golgi apparatus Cytoplasm 10. lysosomes 11. mitochondria 12. cytoskeleton A. an organelle that produces ATP B. cell interior C. in plants, organelles that use light to make organic compounds. D. the cell's packaging and distribution center E. Controls all functions of cells and stores DNA F. encloses and regulates what enters and leaves the cell G. small organelles that contain the cell's digestive enzymes H. Site of protein synthesis I. in plant cells, a large, membrane-bound sac that stores water, nutrients, or other substances J. Fibers that give structure to the cell K. Supports and maintains shape of plant cells L. system of internal membranes that move proteins andarrow_forwardThe endosymbiotic theory pertains to which organelle within eukaryotes because of the presence of 70S ribosomes, circular DNA, and the replication of this organelle independent from mitosis? O 1) nucleus O 2) lysosomes. O 3) golgi 4) endoplasmic reticulum 5: O 5) mitochondriaarrow_forward
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