Laboratory Experiments in Microbiology (11th Edition)
11th Edition
ISBN: 9780321994936
Author: Ted R. Johnson, Christine L. Case
Publisher: PEARSON
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Chapter 34, Problem 2Q
Summary Introduction
To write:
The algae are responsible for producing more oxygen than land plants.
Introduction:
Algae are a diverse group of aquatic organisms that have the ability to conduct the process of photosynthesis. These are eukaryotic organisms and are not necessarily closely related to each other. They are the polyphyletic group which is found in water bodies like rivers, lakes, ponds, oceans etc.
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Describe the morphological and ecological attributes of the red algae? How do they compare to dinoflagellates, diatoms, and brown algae? Are red algae found in Pennsylvania? How are they important to humans? And are they edible?
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Laboratory Experiments in Microbiology (11th Edition)
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- Why are red algae red? What distinguishes plasmodial and cellular slime molds? What are the ecological roles of protists? Why are photosynthetic protists so important to marine/aquatic ecosystems? What limits the growth of these organisms and what causes blooms? What will be affected if marine producers are disrupted?arrow_forwardWhat are the products and functions of brown algae?arrow_forwardHow brown algae preserve their food?arrow_forward
- Dinoflagellates are unicellular, marine protists. Dinoflagellates are bioluminescent, but only at night. During the day, they carry out photosynthesis similar to other autotrophs. At night, however, they bioluminesce every time they are disturbed. They are often seen in the wakes of ships at night. While the reason for this bioluminescence is not fully understood, many scientists concur that it is a form of self-defense. If small fish begin to feed upon the protists, the protists will begin to bioluminesce. These flashes of light in the dark water can alert larger fish and draw them towards the small fish, upon which they prey. By making the small fish vulnerable, the dinoflagellates are able to protect themselves. Based on the information above, a researcher decides to design an experiment in which she is testing how long it takes for dinoflagellates to recover after different amounts of disturbance. She maintains 10 containers of dinoflagellates with similar temperature, salinity and…arrow_forwardDinoflagellates are unicellular, marine protists. Dinoflagellates are bioluminescent, but only at night. During the day, they carry out photosynthesis similar to other autotrophs. At night, however, they bioluminesce every time they are disturbed. They are often seen in the wakes of ships at night. While the reason for this bioluminescence is not fully understood, many scientists concur that it is a form of self-defense. If small fish begin to feed upon the protists, the protists will begin to bioluminesce. These flashes of light in the dark water can alert larger fish and draw them towards the small fish, upon which they prey. By making the small fish vulnerable, the dinoflagellates are able to protect themselves. Based on the information above, a researcher decides to design an experiment in which she is testing how long it takes for dinoflagellates to recover after different amounts of disturbance. She maintains 10 containers of dinoflagellates with similar temperature, salinity and…arrow_forward(a) What organisms were formerly known as “blue-green algae”? (b) Why are these organisms not algae?arrow_forward
- The giant kelp is a type of algae. What 2 parts of the kelp are supported by the gas filled floats?arrow_forwardYou are diving off the coast of an island. Since you are a very good diver, you can go quite deep. Once you stop descending, you look around at the life forms. You notice what you think is an algae. Knowing what you know about algae and their ability to undergo photosynthesis, what phylum of algae are you most likely looking at? -Phylum Bacillariophyta -Phylum Chlorophyta -Phylum Phaeophyta -Phylum Chrysophyta -Phylum Rhodophytaarrow_forwardName the photosynthetic organelle of brown algae.arrow_forward
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