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Blog entry by Elyse Cissell

Multi-celled organisms typically do not reproduce by fission; this process is more common in unicellular organisms, such as bacteria and some protozoa. Multi-ce

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Microbiology

Why does it take a week for blue dye to diffuse in agar jelly?

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The diffusion of blue dye in agar jelly takes about a week due to the viscosity of the gel and the relatively slow movement of dye molecules through the gel's n

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Microbiology

What is the function of l-cystein in bacterial growth?

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L-cysteine is a sulfur-containing amino acid that serves as an important precursor for the synthesis of proteins and other biomolecules in bacteria. It plays a

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Microbiology

What is the difference between an infection cause by fungus and an allergy caused by fungus?

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An infection caused by fungus, known as a fungal infection, occurs when pathogenic fungi invade and multiply in the body, leading to symptoms like inflammation

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Microbiology

+1

How are protozoa microorganism useful in food?

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Protozoa microorganisms play a beneficial role in food production and processing by contributing to fermentation and enhancing the growth of beneficial bacteria

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Microbiology

Where do nitrogen fixing bacteria live and how to they create usable nitrogen?

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Nitrogen-fixing bacteria primarily inhabit the root nodules of leguminous plants, as well as soil and water environments. They convert atmospheric nitrogen (N₂)

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Microbiology

Why are serial dilutions and spread plating a good method for quantifying bacteria as opposed to absorption spectra to measure optical density?

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Serial dilutions and spread plating provide a direct method for quantifying viable bacteria by counting colony-forming units (CFUs), allowing for an accurate as

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Microbiology

What is a multi-celled producer?

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A multi-celled producer, often referred to as a multicellular autotroph, is an organism that can produce its own food through photosynthesis or chemosynthesis a

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Science

+2

5. Membrane receptors are specialized proteins that take part in communication between the cell and the outside world. The membrane protein receptor can be subdivided into three parts or domains. The?

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The membrane protein receptor can be subdivided into three parts or domains: the extracellular domain, the transmembrane domain, and the intracellular domain. T

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Microbiology

What three noteworthy phyal characteristics of Corynebacterium xerosis are visible after performing a simple stain?

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Corynebacterium xerosis typically exhibits three noteworthy physical characteristics after a simple stain: it appears as pleomorphic, rod-shaped bacteria, often

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Microbiology

Why is validation such an important part of aseptic prepeartion?

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Validation is crucial in aseptic preparation because it ensures that the processes and systems used consistently produce products that are free from contaminati

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Microbiology

3 example of persons who may act as sources of infecting microorganisms?

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Three examples of persons who may act as sources of infecting microorganisms include healthcare workers, who can transmit pathogens between patients; asymptomat

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Microbiology

Is neisseria facultative or obligate?

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Neisseria species are generally considered facultative anaerobes, meaning they can grow in both the presence and absence of oxygen. However, they primarily thri

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Microbiology

In a water treatment plan bacteria are used to digest material into the water however these bacteria can be harmful to humans because of this what other steps must be taken in the treatment of water?

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In addition to using bacteria for digestion in water treatment, several other steps are essential to ensure water safety. These include filtration to remove sus

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Microbiology

Is lactobacillus harmful or helpful?

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Lactobacillus is generally considered helpful as it is a type of beneficial bacteria that plays a key role in maintaining gut health and supporting the immune s

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Microbiology

What is not a chararteristic shared by all bacteria?

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Not all bacteria share the characteristic of having a cell wall. While most bacteria possess a cell wall made of peptidoglycan, certain bacteria, such as Mycopl

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Microbiology

When bacteria are spread from one food to another this is called?

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When bacteria are spread from one food to another, jasa vasksin meningitis this is called cross-contamination. This process can occur through direct contact or via contaminated surface

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Microbiology

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What is the vegetative freeloading form of a protozoa cell?

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The vegetative freeloading form of a protozoan cell refers to the active, feeding stage of the organism, typically characterized by its mobility and ability to

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Cell Biology (cytology)

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Is chlorella a prokaryotic cell?

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No, chlorella is not a prokaryotic cell; it is a eukaryotic microalga. Chlorella belongs to the group of green algae and has a defined nucleus and membrane-boun

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Microbiology

Which parts of a compound light microscope with clean lenses should be used to improve the quality of the image being observed in the high power field of veiw?

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To improve the quality of the image in the high power field of view of a compound light microscope, ensure that the condenser is properly adjusted to focus ligh

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Microbiology

Is LB a selective or differential media?

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Luria-Bertani (LB) broth is primarily considered a rich medium rather than a selective or differential medium. It supports the growth of a wide variety of bacte

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Microbiology

Why should you look at the distance between the objective lens and the stage when using the coarse adjustment?

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When using the coarse adjustment knob on a microscope, it's important to consider the distance between the objective lens and the stage to avoid crashing the le

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Microbiology

Why is it necessary to heat a loop to redness when flamed in microbiology?

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Heating a loop to redness in microbiology is crucial for sterilization purposes. The intense heat effectively kills any microorganisms present on the loop, prev

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Microbiology

+1

What are the modes of transmission that protozoans can use to cause disease in human?

Asked by Anonymous

Protozoans can transmit diseases to humans through various modes, primarily including direct contact, ingestion, and vector-borne transmission. For instance, pr

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Microbiology

What is the magnification power of ocular lense 20x by objective lense 15x?

Asked by Anonymous

The total magnification power of a microscope is calculated by multiplying the magnification of the ocular lens by that of the objective lens. In this case, wit

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