Life: The Science of Biology
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
bartleby

Concept explainers

Question
Book Icon
Chapter 25, Problem 3Q
Summary Introduction

To review:

The bacteria, which can improve the productivity of an aquatic ecosystem where small amounts of ammonium are added.

Introduction:

Phosphorus and ammonia are essential nutrients required for the growth of the aquatic ecosystem. In aquatic ecosystem, to increase the productivity, ammonium can be used. The aquatic organisms get required nitrogen for their growth from this dissolved ammonium.

The table given below gives details of characteristics of four bacteria:

Name of Bacteria Clostridium novyi Thermus aquaticus Paracoccus denitrificans Trichodesmium thiebautii
Characteristics
Metabolism Obligate anaerobic Obligate aerobic Facultative anaerobic Facultative anaerobic
Gram status +
Optimal temperature (°C) 10–40 50–80 5–30 10–30
Typical habitat Terrestrial Aquatic Aquatic Aquatic
Miscellaneous Chemotroph Denitrifier Nitrogen fixer

°C, Degree Celsius; (+), positive; (–), negative.

Blurred answer
Students have asked these similar questions
Why does secondary treatment of wastewater require O2? A. Secondary treatment relies on anaerobic microbes to oxidize organic material. B.Secondary treatment relies on anaerobic microbes to reduce organic material.   C.Secondary treatment relies on aerobic microbes to oxidize organic material.   D.Photosynthetic bacteria are involved in secondary treatment and they require O2.   E. Flocs require oxygen to facilitate biofilm formation.
Refer to the following graph of Carbon Assimilation vs. Irradiance of several cultures of dinoflagellates in the northern Baltic Sea. Samples were treated with varying levels of pH. What is the effect of pH on the metabolism of the cultures? a) The growth of the culture is limited by increasing pH. b) The growth of the culture is increased by increasing pH. c) The growth of the culture is not limited by increasing pH. d) The growth of the culture is not affected by increasing pH or increasing irradiation.
Which of the following is correct about biofilms? O 1) They are comprised only of psychrophiles. O 2) They are more sensitive to changes in growth conditions than planktonic cells O 3) Quorum sensing allows the biofilm community to behave differently than planktonic organisms 4) Biofilms only form within the environment. 5) Pure cultures are necessary for biofilm formation.
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Curren'S Math For Meds: Dosages & Sol
Nursing
ISBN:9781305143531
Author:CURREN
Publisher:Cengage