Is bacterial more likely to survive in cold or hot environments?
Bacteria Survival?
Of course, characteristics vary by species, but in general, bacteria will survive the cold better than the heat. This is because most bacteria, even if frozen, do not die - they go into a state of "suspended animation", and can be easily grown again when the temperature is favorable. Enough heat will kill any cell!
Thursday, May 7, 2009
Bacteria thriving around deep-sea hydrothermal vents are?
a. photosynthetic
b. symbiotic
c. heterotrophic
d. parasitic
e. chemosynthetic
Bacteria thriving around deep-sea hydrothermal vents are?
Chemosynthetic, since they don't have any access to other food, since nothing else lives in such harsh environments. These bacteria use the chemicals from the vent to make food, sort of like photosynthesis, but without light.
b. symbiotic
c. heterotrophic
d. parasitic
e. chemosynthetic
Bacteria thriving around deep-sea hydrothermal vents are?
Chemosynthetic, since they don't have any access to other food, since nothing else lives in such harsh environments. These bacteria use the chemicals from the vent to make food, sort of like photosynthesis, but without light.
Bacteria growth on meats left out of the refrigerator?
definitely.salmonella and e. coli are the more popular. nevr taste to see if meat is spoiled . just dispose immediately.
Bacteria growth on meats left out of the refrigerator?
Yes, bacteria will grow on meats left out of the refrigerator. Do you have a more specific question?
Bacteria growth on meats left out of the refrigerator?
Yes, bacteria will grow on meats left out of the refrigerator. Do you have a more specific question?
Bacteria are important economically because they?
a. convert atmospheric nitrogen into ammonia by nitrogen fixation
b. recycle nutrients and help in making food and medicines.
c. cure disease in both plants and animals.
d. both a and b
Bacteria are important economically because they?
f) they make beer and cheese.
Reply:All of above A,B and C
Do u think a bacteria can't do disease in human being? or animals or plants??
Reply:do your own homework but for being resourceful i'll give you what i thinks the anser D
Reply:c.
They don't CURE diseases, they cause them. And for the record, the first two are ECOLOGICALLY important, not economically important. Economically they are important for cheese production, insulin production, blah, blah, blah . . .
fuchsia
b. recycle nutrients and help in making food and medicines.
c. cure disease in both plants and animals.
d. both a and b
Bacteria are important economically because they?
f) they make beer and cheese.
Reply:All of above A,B and C
Do u think a bacteria can't do disease in human being? or animals or plants??
Reply:do your own homework but for being resourceful i'll give you what i thinks the anser D
Reply:c.
They don't CURE diseases, they cause them. And for the record, the first two are ECOLOGICALLY important, not economically important. Economically they are important for cheese production, insulin production, blah, blah, blah . . .
fuchsia
What are three things bacteria and viruses have in common?
Bacteria and viruses can infect many species unrelated to each other. Rabies as a viral example, and staphylococcus as a bacterial example. Both can cause disease.
They are able to mutate within a short period of time (few generations).
Neither bacteria or viral organisms have a nucleus.
What are three things bacteria and viruses have in common?
bacteria and viruses are both bad for the body but bacteria can be used to help viruses
Reply:1. They both contain enzymes and DNA (at least, the DNA viruses).
2. They both 'reproduce' asexually. Reproduce in viral terms is a stretch, but asexual reproduction of bacteria is akin to the replication of viruses
3. Both cause disease in a wide range of hosts
They are able to mutate within a short period of time (few generations).
Neither bacteria or viral organisms have a nucleus.
What are three things bacteria and viruses have in common?
bacteria and viruses are both bad for the body but bacteria can be used to help viruses
Reply:1. They both contain enzymes and DNA (at least, the DNA viruses).
2. They both 'reproduce' asexually. Reproduce in viral terms is a stretch, but asexual reproduction of bacteria is akin to the replication of viruses
3. Both cause disease in a wide range of hosts
How is screening for bacteria used in real life applications?
All the food you buy in a store is screened for harmful bacteria, usually e. coli
How do nitrogen-fixing bacteria die...?
... and what makes them die faster? Heat? Cold temperatures?
How do nitrogen-fixing bacteria die...?
dunno....internet....
Reply:Bacteria are pH sensitive. Acid soils are not habitable by some soil bacteria they favor alkaline or neutral soil pH. They also have oxygen %26amp; moisture requirements. Only anaerobic bacteria grow without oxygen but the Rhizobium occupy the root nodules that cater to their exact oxygen needs that are fairly restricted. Azobacter are free living as are actinomycetes that also fix nitrogen. Actinomycetes do not tolerate the wet so are usually found in associations with plants like bitterbrush, mountain mahogany, alder, and ceanothus.
In the desert the cryptobiotic crust forms where cyanobacteria in lichen fix nitrogen.
http://www.biology.ed.ac.uk/research/gro...
How do nitrogen-fixing bacteria die...?
dunno....internet....
Reply:Bacteria are pH sensitive. Acid soils are not habitable by some soil bacteria they favor alkaline or neutral soil pH. They also have oxygen %26amp; moisture requirements. Only anaerobic bacteria grow without oxygen but the Rhizobium occupy the root nodules that cater to their exact oxygen needs that are fairly restricted. Azobacter are free living as are actinomycetes that also fix nitrogen. Actinomycetes do not tolerate the wet so are usually found in associations with plants like bitterbrush, mountain mahogany, alder, and ceanothus.
In the desert the cryptobiotic crust forms where cyanobacteria in lichen fix nitrogen.
http://www.biology.ed.ac.uk/research/gro...
Bacteria Question.. Please help!?
How exactly does Staphylococcus aureus cause disease/infections? Describe the molecules, machines or organelles in the cell that provide this function.
Thank you so much for any help!!
Bacteria Question.. Please help!?
Staphylococcus primarily infects by person to person contact. S.aureus is mainlyfound to infect the upper respiratory system and one of the substances it produces is coagulase which causes fibrin to form a clot. Production of coagulase is associated with pathogenicity. This induced clotting results in accumulated fibrin around the bacterial cells making it hard for host defence agents to come into contact with them.
S.aureus also produces leukocidin which destroys leukocytes. If this occus in skin lesions it can lead to pus formation.
I hope this helps a little, Sorry!! :)
Reply:wikipedia!!!!!!!!!!!!!
Reply:http://en.wikipedia.org/wiki/Staphylococ...
Reply:look up endotoxins and exotoxins regarding staph. aureus.
paper bush
Thank you so much for any help!!
Bacteria Question.. Please help!?
Staphylococcus primarily infects by person to person contact. S.aureus is mainlyfound to infect the upper respiratory system and one of the substances it produces is coagulase which causes fibrin to form a clot. Production of coagulase is associated with pathogenicity. This induced clotting results in accumulated fibrin around the bacterial cells making it hard for host defence agents to come into contact with them.
S.aureus also produces leukocidin which destroys leukocytes. If this occus in skin lesions it can lead to pus formation.
I hope this helps a little, Sorry!! :)
Reply:wikipedia!!!!!!!!!!!!!
Reply:http://en.wikipedia.org/wiki/Staphylococ...
Reply:look up endotoxins and exotoxins regarding staph. aureus.
paper bush
Bacteria growth on meats left out of the refrigerator?
definitely.salmonella and e. coli are the more popular. nevr taste to see if meat is spoiled . just dispose immediately.
Bacteria growth on meats left out of the refrigerator?
Yes, bacteria will grow on meats left out of the refrigerator. Do you have a more specific question?
Bacteria growth on meats left out of the refrigerator?
Yes, bacteria will grow on meats left out of the refrigerator. Do you have a more specific question?
Bacteria Vaginotisis?
Do you know any home remedies?
Bacteria Vaginotisis?
This is probably something that is better taken care of by a professional so you don't end up with permanent problems. It can spread to your ovaries and cause infertility if not treated correctly.
Reply:I get it all the time. It is true that left untreated it can cause complications. I heard that taking oral acidophilous helps although you should get it at a health food store because they have higher levels of probiotics. They are also more for prevention then treatment. Plain yogurt treatments also are somewhat effective. They only sure fire way is Metrogel. Available only by prescription. :(
Bacteria Vaginotisis?
This is probably something that is better taken care of by a professional so you don't end up with permanent problems. It can spread to your ovaries and cause infertility if not treated correctly.
Reply:I get it all the time. It is true that left untreated it can cause complications. I heard that taking oral acidophilous helps although you should get it at a health food store because they have higher levels of probiotics. They are also more for prevention then treatment. Plain yogurt treatments also are somewhat effective. They only sure fire way is Metrogel. Available only by prescription. :(
Bacteria and archaea are the only organisms characterized as?
A) Unicellular B) Prokaryotic C) Eukaryotic D) Photosynthetic
Bacteria and archaea are the only organisms characterized as?
Prokaryotes.
Reply:unicellular
Reply:whoever wrote unicellular is an idiot. the answer is prokaryotic.
Reply:A and B
p.s. to suzuki, your an idiot. Archae bacteria is unicellular...READ a BOOK!!!
Reply:Prokaryotes!!! There are lots and lots of other unicellular organisms (Protists).
Reply:A) %26amp; B)
both are single-celled prokaryotic organisms
Bacteria and archaea are the only organisms characterized as?
Prokaryotes.
Reply:unicellular
Reply:whoever wrote unicellular is an idiot. the answer is prokaryotic.
Reply:A and B
p.s. to suzuki, your an idiot. Archae bacteria is unicellular...READ a BOOK!!!
Reply:Prokaryotes!!! There are lots and lots of other unicellular organisms (Protists).
Reply:A) %26amp; B)
both are single-celled prokaryotic organisms
Bacteria can obtain their nutrition by:?
A. photosynthesis
B. chemosynthesis
C. heterotrophy
D. both A and B
E. all of these
Bacteria can obtain their nutrition by:?
E.
Because bacteria can obtain nutrition chemically, they can live in conditions that no-one thought possible, for example in volcanic vents at the bottom of the ocean.
Reply:E
Reply:E
daphne
B. chemosynthesis
C. heterotrophy
D. both A and B
E. all of these
Bacteria can obtain their nutrition by:?
E.
Because bacteria can obtain nutrition chemically, they can live in conditions that no-one thought possible, for example in volcanic vents at the bottom of the ocean.
Reply:E
Reply:E
daphne
What are three things bacteria and viruses have in common?
Bacteria and viruses can infect many species unrelated to each other. Rabies as a viral example, and staphylococcus as a bacterial example. Both can cause disease.
They are able to mutate within a short period of time (few generations).
Neither bacteria or viral organisms have a nucleus.
What are three things bacteria and viruses have in common?
bacteria and viruses are both bad for the body but bacteria can be used to help viruses
Reply:1. They both contain enzymes and DNA (at least, the DNA viruses).
2. They both 'reproduce' asexually. Reproduce in viral terms is a stretch, but asexual reproduction of bacteria is akin to the replication of viruses
3. Both cause disease in a wide range of hosts
They are able to mutate within a short period of time (few generations).
Neither bacteria or viral organisms have a nucleus.
What are three things bacteria and viruses have in common?
bacteria and viruses are both bad for the body but bacteria can be used to help viruses
Reply:1. They both contain enzymes and DNA (at least, the DNA viruses).
2. They both 'reproduce' asexually. Reproduce in viral terms is a stretch, but asexual reproduction of bacteria is akin to the replication of viruses
3. Both cause disease in a wide range of hosts
How is screening for bacteria used in real life applications?
All the food you buy in a store is screened for harmful bacteria, usually e. coli
How do nitrogen-fixing bacteria die...?
... and what makes them die faster? Heat? Cold temperatures?
How do nitrogen-fixing bacteria die...?
dunno....internet....
Reply:Bacteria are pH sensitive. Acid soils are not habitable by some soil bacteria they favor alkaline or neutral soil pH. They also have oxygen %26amp; moisture requirements. Only anaerobic bacteria grow without oxygen but the Rhizobium occupy the root nodules that cater to their exact oxygen needs that are fairly restricted. Azobacter are free living as are actinomycetes that also fix nitrogen. Actinomycetes do not tolerate the wet so are usually found in associations with plants like bitterbrush, mountain mahogany, alder, and ceanothus.
In the desert the cryptobiotic crust forms where cyanobacteria in lichen fix nitrogen.
http://www.biology.ed.ac.uk/research/gro...
How do nitrogen-fixing bacteria die...?
dunno....internet....
Reply:Bacteria are pH sensitive. Acid soils are not habitable by some soil bacteria they favor alkaline or neutral soil pH. They also have oxygen %26amp; moisture requirements. Only anaerobic bacteria grow without oxygen but the Rhizobium occupy the root nodules that cater to their exact oxygen needs that are fairly restricted. Azobacter are free living as are actinomycetes that also fix nitrogen. Actinomycetes do not tolerate the wet so are usually found in associations with plants like bitterbrush, mountain mahogany, alder, and ceanothus.
In the desert the cryptobiotic crust forms where cyanobacteria in lichen fix nitrogen.
http://www.biology.ed.ac.uk/research/gro...
Why should you support bacteria?
...because they are the only culture some people have.
ha. :)
Why should you support bacteria?
lol
Reply::)
Reply:some of it is good for ya.
Reply:And besides, some bacteria is good flora!
Reply:haha
and probably fungi too :)
camellia
ha. :)
Why should you support bacteria?
lol
Reply::)
Reply:some of it is good for ya.
Reply:And besides, some bacteria is good flora!
Reply:haha
and probably fungi too :)
camellia
Immune cells that destroy bacteria with chemicals need an abundance of what?
In order to destroy the bacteria, they need to have a lot of lysosomes in them (lysosomes are a type of organelle that has chemicals that will kill the bacteria).
Immune cells that destroy bacteria with chemicals need an abundance of what?
i dont know.....
Reply:The lymphocytes involved in adaptive immunity (i.e. B and T cells) differentiate further after exposure to an antigen; they form effector and memory lymphocytes. Effector lymphocytes function to eliminate the antigen, either by releasing antibodies (in the case of B cells), cytotoxic granules (cytotoxic T cells) or by signaling to other cells of the immune system (helper T cells). Memory cells remain in the peripheral tissues and circulation for an extended time ready to respond to the same antigen upon future exposure.
My answer would be exposure to antigens
Best of Luck!
Immune cells that destroy bacteria with chemicals need an abundance of what?
i dont know.....
Reply:The lymphocytes involved in adaptive immunity (i.e. B and T cells) differentiate further after exposure to an antigen; they form effector and memory lymphocytes. Effector lymphocytes function to eliminate the antigen, either by releasing antibodies (in the case of B cells), cytotoxic granules (cytotoxic T cells) or by signaling to other cells of the immune system (helper T cells). Memory cells remain in the peripheral tissues and circulation for an extended time ready to respond to the same antigen upon future exposure.
My answer would be exposure to antigens
Best of Luck!
Bacteria immune to rubbing alcohol?
Can typical baterial ever become immune or resiliant to rubbing alcohol like they are becoming to current animicrobials and antibacterials?
Bacteria immune to rubbing alcohol?
There are a few strains of bacteria that can live in different types of alcohol. They are very rare and need other specific conditions to live, so alcohol wipes are still a pretty good antiseptic hand or surface treatment. Alcohol will never sterilize any surface.
YboyP is partially correct to mention osmotic forces, but is mostly full of doodie. The alcohol would tend to pull water out of the organism via osmosis, but the alcohol would also typically be destroying the cell wall and killing the bugs more directly. Osmosis is slow and alcohol evaporates quickly. Also, Rubbing alcolhol (more properly Isopropyl alcohol) is also toxic and kills microorganisms this way also.
Reply:No.
Reply:it depends on the bacteria...just like different types of bacteria can resist different temperatures, I imagine, some of them can also resist rubbing alcohol...or become immune to it
Reply:There are two aspects of this. The chemical composition of the ellements and matter present and the reaction. Bacteria react to anti-biotics since they are a mild form of the bacteria itself or food chain of prey.
Some bacteria feed on others without cousing anyphsical of chemical damage to the surrounding. This applies to the anti-biotics while the alcohol simply explodes the bacteria by osmosis coz it has less Ph than bacteria so bacteria cannot be resistant to the alcohol.
Reply:yes it is possible. Any strains of bacteria can become resistant to almost any sort of anti-microbial. That is why most microbiologists will tell you that you shouldn't buy cleaning products with such chemicals that kill everything that it comes in contact with. Most germs you come across in your home don't need them or the chemical Triclosan.
Bacteria immune to rubbing alcohol?
There are a few strains of bacteria that can live in different types of alcohol. They are very rare and need other specific conditions to live, so alcohol wipes are still a pretty good antiseptic hand or surface treatment. Alcohol will never sterilize any surface.
YboyP is partially correct to mention osmotic forces, but is mostly full of doodie. The alcohol would tend to pull water out of the organism via osmosis, but the alcohol would also typically be destroying the cell wall and killing the bugs more directly. Osmosis is slow and alcohol evaporates quickly. Also, Rubbing alcolhol (more properly Isopropyl alcohol) is also toxic and kills microorganisms this way also.
Reply:No.
Reply:it depends on the bacteria...just like different types of bacteria can resist different temperatures, I imagine, some of them can also resist rubbing alcohol...or become immune to it
Reply:There are two aspects of this. The chemical composition of the ellements and matter present and the reaction. Bacteria react to anti-biotics since they are a mild form of the bacteria itself or food chain of prey.
Some bacteria feed on others without cousing anyphsical of chemical damage to the surrounding. This applies to the anti-biotics while the alcohol simply explodes the bacteria by osmosis coz it has less Ph than bacteria so bacteria cannot be resistant to the alcohol.
Reply:yes it is possible. Any strains of bacteria can become resistant to almost any sort of anti-microbial. That is why most microbiologists will tell you that you shouldn't buy cleaning products with such chemicals that kill everything that it comes in contact with. Most germs you come across in your home don't need them or the chemical Triclosan.
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