Question and answer
Examples of organisms that respires both aerobically and anaerobically.
An anaerobic organism or anaerobe is any organism that does not require oxygen for growth. It could possibly react negatively and may even die if oxygen is present. [ There are three types: obligate anaerobes, which cannot use oxygen for growth and are even harmed by it aerotolerant organisms, which cannot use oxygen for growth, but tolerate the presence of it facultative anaerobes, which can
grow without oxygen but can utilize oxygen if it is present Contents [hide] 1 Metabolism 1.1 Fermentation 2 Culturing anaerobes 3 References 4 See also [edit]Metabolism Obligate anaerobes may use fermentation or anaerobic respiration. Aerotolerant organisms are strictly fermentative. In the presence of oxygen, facultative anaerobes use aerobic respiration; without oxygen some of them ferment, some use anaerobic respiration. [edit]Fermentation There are many anaerobic fermentative reactions. Fermentative anaerobic organisms mostly use the lactic acid fermentation pathway: C6H12O6 + 2 ADP + 2 phosphate ? 2 lactic acid + 2 ATP The energy released in this equation is approximately 150 kJ per mol, which is conserved in regenerating two ATP from ADP per glucose. This is only 5% of the energy per sugar molecule that the typical aerobic reaction generates. Plants and fungi (e.g., yeasts) generally use alcohol (ethanol) fermentation when oxygen becomes limiting: C6H12O6 + 2 ADP + 2 phosphate ? 2 C2H5OH + 2 CO2 + 2 ATP The energy released is about 180 kJ per mol, which is conserved in regenerating two ATP from ADP per glucose. Anaerobic bacteria and archaea use these and many other fermentative pathways, e.g., propionic acid fermentation, butyric acid fermentation, solvent fermentation, mixed acid fermentation, butanediol fermentation, Stickland fermentation, acetogenesis or methanogenesis. Some anaerobic bacteria produce toxins (e.g., tetanus) [edit]Culturing anaerobes Since normal microbial culturing occurs in atmospheric air which is an aerobic environment, the culturing of anaerobes poses a problem, and a number of techniques are employed by microbiologists when culturing anaerobic organisms. ]
Expert answered|bestWeegy|Points 516|
Question
Asked 10/22/2011 12:46:34 AM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
21,092,299 questions answered
Popular Conversations
Simplify 2(x - 4) + 7(x + 2). User: Simplify 2(x - 4) + 7(x + 2). ...
Weegy: 3(4x + 6) - 9x = 12x + 18 - 9x; = 3x + 18 User: Simplify 8 - (-5) - 4(-7). Weegy: 8 - (-5) - 4(-7) = 8 + 5 ...
5/27/2015 3:01:03 PM| 4 Answers
What is the middle term of the product of (x - 4)(x - 3)? User: ...
Weegy: b.(p + 2)(p + 16) to check: p*p + (2p + 16p) + (2 * 16) = p^2 + 18p + 32 so the answer is b.(p + 2)(p + 16) ...
5/26/2015 1:22:27 PM| 3 Answers
Simplify 11(2x + 3). 11x + 5 22x + 3 22x + 33 User: Simplify -3xy 3 ...
Weegy: The answer is (-3xy 3). User: Simplify 2x + x. User: Simplify 8(3 - 2x). Weegy: 10(2x + 3) - 20 = ...
5/27/2015 9:20:06 AM| 3 Answers
Simplify 8(3 - 2x).
Weegy: 10(2x + 3) - 20 = (10)(2x)+(10)(3) - 20 = 20x + 30 - 20 = 20x + 10 User: Simplify -2[9 - (x + 7)]. User: ...
5/27/2015 9:22:24 AM| 3 Answers
Give the next two numbers in this pattern: 0, 0.75, 1.5, 2.25, ... ...
Weegy: 0.6/0.75 = 0.8 User: Find the direct variation equation which passes through (0, 0) and (4, 1). A. y = 4x ...
5/26/2015 12:36:07 AM| 2 Answers
Factor a 2 bc + ab 2 c + abc 2. User: Factor x 4 y 2 + x 3 y 3 ...
Weegy: (a)5k^2(1 - 7k) is the answer. 5k^2(1 - 7k) = 5k^2 - 35k^3 User: Factor -4d 3 + 28d 2 - 4d. Weegy: -4d^3 + ...
5/26/2015 9:26:33 AM| 2 Answers
Evaluate f-2g for f = 4 and g = 32. 2 8 User: Write 6,000,370 in ...
Weegy: y*9 User: (b2)3 Weegy: the bond order of b2 is 1, one bond order = 1/2 (#e- in bonding MO's - #e- in ...
5/26/2015 10:14:55 AM| 2 Answers
Developmental disabilities cannot be cured.
Weegy: Developmental disabilities cannot be cured. TRUE. User: Social stigmas can prevent children with ...
5/26/2015 11:21:37 AM| 2 Answers
What is the solution set of the given equation? 4y - 6y + 9y = -2
Weegy: 4y - 6y + 9y = -2 -2y + 9y = -2 7y = -2 y = -2/7 User: Solve for x. 5x - 6 = 4x + 8 Weegy: ...
5/26/2015 12:20:50 PM| 2 Answers
Weegy Stuff
S
Points 759 [Total 767]| Ratings 1| Comments 749| Invitations 0|Offline
S
L
Points 706 [Total 1236]| Ratings 2| Comments 686| Invitations 0|Offline
S
1
Points 569 [Total 961]| Ratings 3| Comments 539| Invitations 0|Offline
S
L
P
Points 429 [Total 2906]| Ratings 1| Comments 419| Invitations 0|Offline
S
P
C
L
P
L
1
P
P
1
P
1
Points 248 [Total 8994]| Ratings 0| Comments 248| Invitations 0|Offline
S
Points 148 [Total 168]| Ratings 0| Comments 148| Invitations 0|Offline
S
1
L
L
Points 84 [Total 8267]| Ratings 0| Comments 84| Invitations 0|Offline
S
L
Points 56 [Total 3810]| Ratings 2| Comments 36| Invitations 0|Offline
S
L
1
R
Points 53 [Total 1340]| Ratings 0| Comments 53| Invitations 0|Offline
S
Points 14 [Total 14]| Ratings 0| Comments 14| Invitations 0|Offline
Home | Contact | Blog | About | Terms | Privacy | Social | ©2015 Purple Inc.