3. The Endosymbiont Theory suggests that some cell organelles may have arisen when a prokaryotic cell was phagocytosed by a primitive eukaryotic cell, but not digested. A symbiotic relationship arose between the two cells, since such cells had a selective advantage, and the cells became extremely successful giving rise to modern eukaryotic cells. Name a structural feature of such organelles that may be a holdover from their origin. What specific organelles might have arisen in this way?

3. The Endosymbiont Theory suggests that some cell organelles may have arisen when a prokaryotic cell was phagocytosed by a primitive eukaryotic cell, but not digested. A symbiotic relationship arose between the two cells, since such cells had a selective advantage, and the cells became extremely successful giving rise to modern eukaryotic cells. Name a structural feature of such organelles that may be a holdover from their origin. What specific organelles might have arisen in this way?

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter3: Cell Structure

Section: Chapter Questions

Problem 1CT: In a classic episode of Star Trek, a gigantic amoeba engulfs an entire starship. Spock blows the...

See similar textbooks

Similar questions

1. Viruses that do not have a lipid envelope tend to remain infectious outside the body longer than enveloped viruses. “Naked” viruses are also less likely to be rendered harmless by soap and water. Why? 2. The apicomplexan that causes malaria has a photosynthetic ancestor and contains an organelle that evolved from its ancestral chloroplast. The organelle no longer functions in photosynthesis, but it does carry out some essential metabolic tasks. Why would targeting this organelle yield an antimalarial drug that would be likely to have minimal side effects?
Organisms of which of the following kingdom do nothave nuclear membrane ?(a) Protista (b) Fungi(c) Monera (d) Plantae Please try to break the solutions into as many steps as practically possible and the steps should come one by one and they should be short and crisp and plagiarism-free.
The cells labeled A came from my (Riva's) cheek. The cells labeled B came from an aquatic plant called Elodea. Which is a difference you can see in these images? the cheek cells have organelles, the Elodea cells do not the cheek cells have no cell wall, the Elodea cells do there is only one cheek cell but many Elodea cells the cheek cells are eukaryotic, the Elodea cells are prokaryotic all these choices are correct
5. Paramecia live mostly in freshwater and move with the use of structures calle cilia. They utilize contractile vacuoles to expel water that enters the cell by osmosis. Euglena are unicellular organisms that use flagella for movement anc chloroplasts for photosynthesis. They are found in freshwater and saltwater. Scientists have determined that Paramecia and Euglena are eukaryotes and no prokaryotes because they have-
10. Membrane-bound organelles have been an important component in the evolution of complex, multicellular organisms. Which cells having internal membranes? the following best summarizes an advantage of eukaryotic (A) Eukaryotic cells are able to reproduce faster because of the presence of organelles. (B) Some organelles, such as mitochondria and chloroplasts, are similar to prokaryotic cells in structure. (C) Organelles isolate specific reactions, increasing metabolic efficiency. (D) Compartmentalization leads to a higher mutation rate in DNA, which leads to more new species.
are these found in eukaryotes, prokaryotes or both? 1. nucleus 2. cell membrane 3. inclusion bodies 4. cell wall 5. peptidoglycan 6. genome 7. endoplamis reticulum 8. chloroplasts
• IN THIS UNIT WE WILL NOT LOOK AT THE WHAT HAVE DETAILS OF ALL THE TAXA. YOU LEARNED? • You ARE ONLY RESPONSIBLE FOR THE • COMPLETE THE ORDER OF THEM (DKPCOFGS) Domain STOP • WE WILL LOOK IN DETAIL AT THE 6 KINGDOMS CHECKPOINTS ON CANVAS: 1. DICHOTOMOUS • AND PLACE EMPHASIS ON BACTERIA KEYS • You WILL ALSO LEARN ABOUT VIRUSES,) BUT REMEMBER, THEY ARE NON-LIVING WE GROUP ORGANISMS INTO KINGDOMS THE SIX KINGDOMS BASED ON 5 CHARACTERISTICS 5. Cell Type Motile vs. Non-motile Amimals plants fungi Number of cells Cell Mode of protists Eubacteria Archaebacteria Structures Nutrition
42. Describe the function of the following parts of a cell: nucleus, rough endoplasmic reticulum, smooth endoplasmic reticulum, golgi apparatus, ribosome, lysosome, plasma membrane, cytosol. 43. Name 4 structures present in a plant cell that are not in an animal cell and describe the function of 2 of them. 44. Formulate a hypothesis based on the observation that your car wouldn't start this morning. Your hypothesis should offer an explanation of why that is the case. Then offer a way you could test your hypothesis. 6 & 7 fg 8 fg 9 f10 insert O
Considering which organelles were created through the endosymbiotic theory, which of the following is NOT something that the host could receive from the engulfing a symbiont? A. the engulfed cell provided the host cell with adenosine triphosphate (ATP) B. the host cell was able to survive anaerobic conditions with the engulfed cell alive C. the engulfed cell provided the host cell with carbon dioxide D. the engulfed cell allowed the host cell to metabolize glucose
1. For each type of organism, place a check mark in the box to indicate whether the cellular characteristic or function is present. CHARACTERISTIC OR FUNCTION PROTOZOA ALGAE CYANOBACTERIA Nucleus Flagella Pseudopodia Cilia Photosynthetic pigment(s) Chloroplasts Cell wall
4. Which of the following best describes an organelle? a. Any cellular structure whose function is essential for a cell to acquire resources, grow, and reproduce b. A membrane-bound structure inside a cell that translate, tag, and pack proteins c. The site of ribosome synthesis d. The site of ATP synthesis that converts light energy to chemical energy through the process of photosynthesis. 5. Bacteria that lack fimbriae are less likely to _____________________. a. Adhere to cell surfaces b. Swim through bodily fluid c. Retain the ability to divide d. Synthesize proteins 6. What is a motor protein? a. One of the three types of fibers that comprise the cytoskeleton b. A protein that changes confirmation when ATP is hydrolyzed and makes movement possible. c. A molecule that “walks” along a microtubule when mannose-6-phosphate is attached d. An enzyme that catalyzes the formation of the ATP used in movement
12) Which of the following adaptations compensates for one of the disadvantages of being multicellular? (think carefully before answering!) Cytoskeleton Cell adhesions Membrane fluidity All of the above