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Fudgin [204]
3 years ago
6

How many pili are in a bacterial cell

Chemistry
1 answer:
Snowcat [4.5K]3 years ago
7 0

Answer: Bacterial species where observed Typical number on cell Distribution on cell surface

Escherichia coli (common pili or Type 1 fimbriae) 100-200 uniform

Neisseria gonorrhoeae 100-200 uniform

Streptococcus pyogenes (fimbriae plus the M-protein) ? uniform

Pseudomonas aeruginosa 10-20 polar

Explanation:

Pili are structures that extend from the surface of some bacterial cells.

These are hollow, non-helical, filamentous appendages.

Hope it helps you

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Which of the following is a type of cell organelle?
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Answer:

C . Dna

Explanation:

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3 years ago
Explain how soil can affect the composition of the solution that move through it
sertanlavr [38]

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5 0
3 years ago
A certain compound of bromine and fluorine is used to make UF6, which is an important chemical in the processing and reprocessin
Aleksandr [31]

Answer: The empirical formula is BrF_3

Explanation:

If percentage are given then we are taking total mass is 100 grams.

So, the mass of each element is equal to the percentage given.

Mass of Br=  58.37 g

Mass of F = (100-58.37) = 41.63 g

Step 1 : convert given masses into moles.

Moles of Br=\frac{\text{ given mass of Br}}{\text{ molar mass of Br}}= \frac{58.37g}{80g/mole}=0.73moles

Moles of F =\frac{\text{ given mass of H}}{\text{ molar mass of H}}= \frac{41.63g}{19g/mole}=2.2moles

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For Br = \frac{0.73}{0.73}=1

For F = \frac{2.2}{0.7}=3

The ratio of Br: F= 1 : 3

Hence the empirical formula is BrF_3

8 0
3 years ago
9. Typically meringues have cream of tarter added to them. Why don't you think we don't have them in our recipe?
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3 0
3 years ago
What is the most reliable measurement for the quantity of matter?
Alisiya [41]

Answer:

Mass is your answer: Please give brainleist, im close to the next rank

Explanation:

Mass is a fundamental measure of the amount of matter in the object.  Kilogram (symbol: kg) is the base unit of mass in the International System of Units.  

8 0
3 years ago
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