Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Textbook Question
Chapter 20, Problem 1FIB
____________, have peptidoglycan in their____________, but ____________, do not.
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Mark all statements that are consistent or accurate with the topic provided. Choosing more or less than
the correct options will be considered incorrect.
Accurate statements related to
2.
1.
Functions of glycocalyx: *
peptidoglycan: *
Peptidoglycan is only present in gram-
positive bacteria.
Allows bacterium to stick to host cells.
Forms pseudopodia for faster mobility of
Peptidoglycan is found mainly in the cell
walls of fungi and algae.
an organism.
Gram-negative cell wall has relatively
thinner layer of peptidoglycan than gram-
"Hides" the bacteria from host immune
cells.
positive.
3.
Mismatched pairs: *
Mitochondria : ATP production
Golgi apparatus : Protein synthesis
Vacuoles : Photosynthesis
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Please hand draw Paramecium caudatum and label it with the following terms: Paramecium, Phylum Ciliophora, Macronucleus, micronucleus.
Please be sure to include all of the terms provided.
Look up the history of penicillin. From which species of mold was penicillin first (accidentally) discovered?Look up “pseudohyphae” (or “pseudohypha”) online and describe what they are in five words or less (“falsehyphae” is not sufficient) _____________________________________________________________________The presence of pseudohyphae indicates infections by which fungal species? ____________________________An infection of the mouth by the fungal species above is called _______________________________________
Chapter 20 Solutions
Biology
Ch. 20.1 - describe some differences between bacteria and...Ch. 20.1 - describe the typical sizes and shapes of...Ch. 20.2 - What might explain the observation that most...Ch. 20.2 - Unwelcome Dinner Guests A few of the bacteria that...Ch. 20.2 - Some of the enzymes that have important uses in...Ch. 20.2 - Unpleasant breath odors are caused mainly by...Ch. 20.2 - As part of a study on the relationship between...Ch. 20.2 - What is the main advantage of prokaryotic fission,...Ch. 20.2 - describe the range of environments inhabited by...Ch. 20.2 - describe adaptations that help protect prokaryotes...
Ch. 20.2 - explain how prokaryotes reproduce and exchange...Ch. 20.3 - If all of Earths nitrogen-fixing prokaryotes were...Ch. 20.3 - Unwelcome Dinner Guests Many of the bacteria...Ch. 20.3 - explain how prokaryotes affect animal and plant...Ch. 20.3 - explain prokaryotes role in nutrient recycling?Ch. 20.3 - describe how prokaryotes help clean up pollution?Ch. 20.3 - describe some of the pathogenic bacteria that...Ch. 20.4 - Why are viruses unable to replicate outside of a...Ch. 20.4 - Biotechnologists often use viruses to transfer...Ch. 20.4 - describe the structure and characteristics of...Ch. 20.4 - describe the effects they can have on host...Ch. 20.4 - Prob. 3CYLCh. 20.4 - Unwelcome Dinner Guests How do harmful bacteria...Ch. 20 - The name of the process by which DNA is...Ch. 20 - A community of prokaryotes surrounded by slime and...Ch. 20 - Which of the following statements about archaea is...Ch. 20 - Viruses a. are usually photosynthetic. b. consist...Ch. 20 - Applying fertilizer near an oil spill to Increase...Ch. 20 - ____________, have peptidoglycan in...Ch. 20 - Prokaryotic cells are ____________,...Ch. 20 - Many prokaryotes use ____________ to move about....Ch. 20 - ____________,bacteria inhabit environments that...Ch. 20 - Prokaryotes reproduce by ____________ and may...Ch. 20 - The plant nutrient ammonium is produced by...Ch. 20 - Cholera, gonorrhea, and pneumonia are some of the...Ch. 20 - A virus consists of a molecule of __________ or...Ch. 20 - Describe some of the ways in which prokaryotes...Ch. 20 - What are nitrogen-fixing bacteria, and what role...Ch. 20 - Describe some of the extreme environments in which...Ch. 20 - What is an endospore? What is its function?Ch. 20 - What is conjugation? What role do plasmids play in...Ch. 20 - Why are prokaryotes especially useful in...Ch. 20 - Describe the structure of a typical virus. How do...Ch. 20 - Describe some examples of how prokaryotes are...Ch. 20 - How do archaea and bacteria differ? How do...Ch. 20 - Prob. 1ACCh. 20 - Before the discovery of prions, many (perhaps...
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