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Bacteria

Bacteria are a large domain of single-celled, prokaryote microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals.

2,228 Questions

What is one of the most abundant bacteria in the human intestine A. Streptococcus pneumoniae B. E. coli C. Nitrogen-fixing bacteria D. Rhizobium E. Pseudomonas?

Steptococcus pneumoniae is in the lungs and not all the time, only when your sick. E. coli is in the intestines and is a benefitial resident (most of the time) nitrogen fixing bacteria are in the soil and plant roots.

What is colonic bacteria?

Colonic bacteria is, quite simply, bacteria found in the colon. Humans and their intestinal bacteria usually live in a symbiotic relationship: we give bacteria a warm home and food, and they give us nutrients from eating that food.

Does bacteriophage feed on bacteria?

Yes, that is the meaning of the name " bacteriophage. " " bacteria eater. " Though they hijack the metabolic and replicative process of bacteria to replicate themselves and not actually eat the bacteria.

Four difference between virus and bacteria?

Viruses are (debatably) not alive while bacteria are; meaning they are smaller and require a living host to survive. Bacteria are killed with antibiotics, but viruses are not.

What virus is like T2 and infects bacteria?

This virus is a bacteriophage. The word means bacteria eater.

How big is one tetanus germ?

Tetanus is a virus and it is anywhere from 10 - 400nm in diameter.

Do bacteria grow on your toothbrush?

Yes. However if you make sure the toothbrush completely air dries between uses the bacterial growth will be limited to safe levels.

What is something positive that affects humans about bacteria?

When humans take a dump and expel bacteria the lose a pound or two.

What two bacteria produce chemicals?

All bacteria produce chemicals. Could you possibly be more specific?

How do bacteria respirate?

Bacteria respire by breaking down organic molecules to generate energy in the form of ATP through a process called cellular respiration. This process can be aerobic, using oxygen as a final electron acceptor, or anaerobic, using alternative molecules such as nitrate or sulfate. The energy produced is used by the bacteria for various cellular processes and growth.

What bacteria eats us after you die?

There are several bacteria that can play a role in decomposition after death, including certain species of Clostridium, Pseudomonas, and Proteus. These bacteria thrive on the nutrients released by breaking down tissues during decomposition. However, it's important to note that a diverse community of microorganisms, including bacteria, fungi, and insects, contributes to the decomposition process.

Are Bacteria a species?

No, bacteria is a diverse group of microorganisms that are classified into different species based on their genetic and physical characteristics. There are thousands of identified bacterial species that vary in shape, size, and function.

What was Antoni van Leeuwenhoek famous for?

Antoni van Leeuwenhoek was a Dutch scientist known for his development of the microscope and his discoveries in the field of microbiology. He is often referred to as the "Father of Microbiology" and was the first to observe bacteria, protozoa, and sperm cells under a microscope.

What is the value of agar in isolating bacteria from mixed culture?

Angelina Fanny Hesse made the isolation of bacteria possible by suggesting the use of agar-agar. In the early 1880's Hitchens and Leikind suggested that 'plain agar' be referred to as 'Frau Hesse's medium' to acknowledge her forgotten 'service to science and to humanity.' Perhaps it's finally time that we remember Frau Hesse and celebrate all the ignored 'bead collectors' working in the laboratories and kitchens that make science possible.

Agar is actually an inert but great medium for growing microorganisms. It will grow the largest number of different types of microbes - fungi and bacteria. Agar is a general purpose medium supporting growth of a wide range of non-fastidious organisms.

Yet, not all bacteria can grow on it. Some find it too rich, and others find it deficient. An example of a fastidious organism is Neisseria gonorrhoeae, which requires blood or hemoglobin and several amino acids and vitamins in order to grow.
You would then know that the organism you are looking at can't be gonorrhea since it didn't grow.

Can nephritis in men cause vaginal bacterial infections in women?

Nephritis in men will not cause bacterial vaginosis in women. The two conditions are unrelated.

What is the most deadly bacteria?

MRSA, in my mind, is the worst bacterial infection. I had a relative die from a MRSA infection caught in an OR in a Hospital, and had a relative visit the OR in a hospital (not the same Hospital where it was transmitted in the OR) and also caught MRSA. Forbes (see related link) lists several deadly bacteria which includes 1 fungal infection as well.

Which catches the bacteria that make it past the nose and mouth?

The immune system's lymph nodes and white blood cells are responsible for catching bacteria that make it past the nose and mouth. White blood cells detect and attack the bacteria while lymph nodes help to filter and remove any harmful substances.