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PtichkaEL [24]
3 years ago
15

Which of the following statements about adherence is true? View Available Hint(s) Which of the following statements about adhere

nce is true? Most bacterial adhesins are glycoproteins or lipoproteins. The host cell receptors for bacterial adhesins are usually proteins. Adhesins are always located on the bacterium's cell membrane. Most bacteria can adhere to any cell in the host.
Biology
1 answer:
Scrat [10]3 years ago
6 0

Answer:

Most bacterial adhesins are glycoproteins or lipoproteins.

Explanation:

Bacterial adhesins are cell surface or cell membrane structure which is resposible for adherence of bacterial surface with other cells surface. These are mostly made up of glycoproteins or lipoproteins. Adhesins are considered as virulence factor of bacteria because they are involve in the pathogenesis or causing infection into host by attaching to host cells.

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What are the starting types of energy and what are the ending types of energy?​
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Answer:

Energy comes in six basic forms: chemical, electrical, radiant, mechanical, thermal and nuclear.

Explanation:

Energy comes in six basic forms: chemical, electrical, radiant, mechanical, thermal and nuclear.

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2 years ago
Explain how chemicals present in cigarette smoke are able to enter the body and reach the brain
kobusy [5.1K]

When you smoke a cigarette, the components; e.g. nicotine and carbon monoxide enter the lungs and are absorbed into the bloodstream. They are carried by the Red Blood Cells to the blood-brain barrier, here, nicotine binds to nicotinic acetylcholine receptors (nAChRs), resulting to a cascade that results to release of dopamine (good-feeling neurotransmitter).






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3 years ago
Which taxa are parasitized more by fungi than the others?
timama [110]

Answer:

Plants

Explanation:

Fungi have neither chlorophyll or chloroplasts. They feed on already manufactured food. They parasitize the plants because they have chlorophyll and make their own food. The fungi send haustoria to the roots of the plants where they obtain manufactured food.

7 0
2 years ago
Which material most likely has the highest level of permeability?
r-ruslan [8.4K]
D would be the answer to this question
6 0
3 years ago
Read 2 more answers
Does the distribution of bases in sea urchin DNA and salmon DNA follow Chargaff’s rules? a) Yes, because the %A approximately eq
MArishka [77]

Answer:

A. Yes, because the %A approximately equals the %T and the %G approximately equals the %C in both species.

Explanation:

According to Chargaff's rule, in all cellular DNAs, the number of adenosine residues (A) is equal to the number of thymidine residues (T). And the number of guanosine residues (G) is equal to the number of cytidine residues (C). Therefore, the sum of the purine residues equals the sum of the pyrimidine residues (A+ G= C+ T). It is based on the fact that a purine base always pairs with a pyrimidine base in a double helix DNA.

Chargaff’s rule is followed in all the double-helical DNA molecules irrespective of the species. In DNAs of sea urchin and salmon, the percentage of adenine is equal to that of the thymine and the percentage of guanine is equal to that of the cytosine. Therefore, Chargaff's rule is followed.

3 0
3 years ago
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