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zheka24 [161]
2 years ago
15

Is yeast alive? If so how can you tell

Biology
1 answer:
OleMash [197]2 years ago
3 0

Answer:

Bubbles are a sign that the yeast is alive, and that it is performing anaerobic respiration. You should notice that the mixtures with too little and too much sugar do not grow, bubble or foam properly. This is because the yeast needs the perfect amount in order to produce carbon dioxide.

Explanation:

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Nitrogen-fixing bacteria is capable pf transforming nitrogen present in the atmosphere into fixed nitrogen i.e. usable for plants.

hope it helps!

4 0
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Which of the following statements best describes what happens when a bacterial cell is placed in a solution containing 5 percent
lora16 [44]

Answer:

C) Water will move out of the cell.

Explanation:

In microbial growth experiments, when a bacterium is placed in a Petri dish with a solution that contains dissolved salt (NaCl) - a hypertonic solution -, the result will lead to the <u>dehydration and shrinking of the bacterial cell</u>.

This condition will eventually cause the rupture of the cell, resulting in the diffuse of H20 molecules from the plasma membrane, that is, the water moving out of the cell.

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Ok, so this is what kangaroos used to look like...<br><br><br> Enjoy trying to sleeping tonight ;)
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Answer:

Thanx

8 0
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Complement factor c3b coats a bacterium and binds to c3b receptors on phagocytes, making the bacterium more susceptible to being
loris [4]

Answer;

The above statement is true

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Describe the relationship between genetic testing and the polymerase chain reaction. How has the PCR technique made genetic test
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