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faust18 [17]
1 year ago
5

Before you do an acid fast or endospore staining procedure, what do you need to do first?Group of answer choicesA view the slide

under the oil immersion lensB do a gram stainC make a bacterial smearD rinse your slide with acid alcohol
Biology
1 answer:
icang [17]1 year ago
6 0

An example of the use of acid-fast staining is the staining of bacteria that have mycolic acids in their membrane, also called acid-fast bacteria because they resist unstaining with this acid-alcohol mixture. Because of this characteristic, such bacteria are not gram-stained. Therefore, B is not the answer.

To perform this staining you must first make a smear of the bacteria and fix it on the slide and then stain it. The immersion in acid alcohol is done during the staining process and the observation under the immersion lens at the end of the staining. Therefore, the answer is C

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When culturing a chemoorganoheterophic bacterium, what outcome is LEAST likely to occur if ammonia and phosphate are provided at
inna [77]

Options:

A) Cells require much less P to grow than N, so extra P will be used for ATP synthesis and result in a faster growth rate.

B) Cells will never consume all of the phosphate, because N is needed in higher quantities than P.

C) The final biomass of cells will be no different than if only 50% of the phosphate was provided.

D) The bacteria will import all of the ammonia to use for biosynthetic pathways.

Answer:A) Cells require much less P to grow than N, so extra P will be used for ATP synthesis and result in a faster growth rate.

Explanation: Chemoorganoheterophic Bacteria are bacteria which requires the supply of organic nutrients of Carbon and metabolic energy. If Ammonia and potassium are provided at equal amount or concentration, the least likely occurrence will be that

Cells require much less P(potassium) to grow than N(Nitrogen), so extra P(potassium) will be used for ATP synthesis and result in a faster growth rate. This is so because Chemoorganoheterophic Bacteria requires organic supply of nutrients in the form of Carbon and metabolic energy.

5 0
3 years ago
Gunther touched a hot object and received a minor burn. How did the skeletal system help prevent further damage?
Umnica [9.8K]
Hello to answer your question correctly.

The skeletal system helped him move his hand away from the hot object. Because the skeletal system reacted by sending a message to the brain saying that was hot and dangerous thus causing the movement of the hand.


              Signed by, Virtouso Sargedog 

3 0
3 years ago
Read 2 more answers
Suppose that this population of mice has stabilized so that both white and brown appear. White mice survive better in the winter
arsen [322]

Answer:

The population of the white mice would significantly decrease, and most of the mouse population would be with brown fur.

Explanation:

As stated in the question, the brown mice survive better in warmer times. This is due to the fact that with winter and snowy times it makes it harder for prey to spot the WHITE mice v.s. the BROWN mice who would very easily be spotted by the prey in snowy regions.

6 0
2 years ago
How does a plasma membrane control what gets in and out
harkovskaia [24]

i dont really know im sry

Explanation:

8 0
2 years ago
I need help please and thank you
Bess [88]
I think it’s C not completely sure but it’s the most likely there isn’t anything with mechanical so this would be most likely
8 0
2 years ago
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