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3 years ago

Explain how this enables the bacterium to detect the population density

Biology

2 answers:

Thepotemich [5.8K]3 years ago

8 0

Answer:

The concentration of chemical auto inducers increases with increase in population density

Explanation:

There is something known as Quorum sensing which is a sort of cellular communication in bacteria established through chemical signals. A bacterium is enabled to observe/monitor the environment and thus produce a widespread change in the species with in a community. These sensing processes are effective only when large numbers of cells are doing sensing controlled process together. A bacteria releases auto-inducers whose concentration increases when the population density of cells increase.

Gemiola [76]3 years ago

6 0

"When autoinducers produced by one bacterium cross the membrane of another, they bind to receptors in the cytoplasm. This autoinducer/receptor complex is then able to bind to DNA promoters and activate the transcription of quorum sensing-controlled genes. In this way, individual bacteria within a group are able to benefit from the activity of the entire group."

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As skin cells move toward the surface of the body, they produce a protein that reduces water loss. This process is called

fomenos

Answer:

As skin cells move toward the surface of the body, they produce a protein that reduces water loss. This process is called Keratinization.

Explanation:

Keratinization is a process which changes the stratum corneum of the skin to a hard cover which provides protection.

The process of keratinization involves polymerization of keratin polypeptides. The keratin polypeptides gets polymerized into intermediate filaments of keratin. Each of the intermediate filament of keratin constitute around 30,000 polypeptides of keratin.

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3 years ago

Use Chargaff’s rules to predict the missing values for E. coli, human, and ox DNA. Round your answers to the nearest whole numbe

Black_prince [1.1K]

Answer:E. coli: Cytosine- 26, Thymine-24

Human: Guanine-20, Cytosine-20

Ox: Guanine-21, Cytosine-21, Thymine-29

Explanation:

Chargaff's rules state that in a given DNA molecule the percentage of Adenine %A is approximately equals the percentage of Thymine %T and the percentage of Guanine %G is approximately equals the percentage of Cytosine %C.

Answer is

E. coli: Cytosine- 26, Thymine-24

Human: Guanine-20, Cytosine-20

Ox: Guanine-21, Cytosine-21, Thymine-29

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3 years ago

How does an import quota differ from an equivalent tariff?

Illusion [34]

The main difference is that quotas restrict quantity while tariff works through prices

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2 years ago

The human brain is an example of a A) cell B) tissue C) organ D) organ system

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3 years ago

A person studying a particular field has published her findings. The findings are not testable by others. This person is most li

Crazy boy [7]

Astrology

Explanation:

A person studying the field of Astrology would not have her finds testable by others because most are descriptive and not experimental in nature.

Astrology is a pseudoscience claiming divination by the positions of the planets and sun and moon.

It is simply the study of stars and their patterns.
Most astrologers use positions of planetary bodies to predict future events and some topical matters.
Astrology is not pure experimental science that can be tested using sophisticated instruments in the laboratory or in the field.
Biology is the study of life and follows the scientific way of studying nature.
Chemistry and physics are pure sciences that follows the scientific nature in their investigation.

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3 years ago