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slavikrds [6]
3 years ago
13

Why might a unicellular organism need oxygen?

Biology
1 answer:
Ahat [919]3 years ago
5 0

Answer:

Most organisms also need oxygen to survive. ... In unicellular organisms, oxygen diffuses across the cell membrane into the cell. Carbon dioxide diffuses out of the cell once the concentration of carbon dioxide is higher inside the cell than it is outside of the cell.

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Scientists studying transcription in yeast (Saccharomyces cerevisiae) created an experimental strain that
Ray Of Light [21]

Answer:

Explanation:

Hello!

The scientist created an experimental strain that produces a modified RNA polymerase with a single amino acid substitution. This mutation is supposed to change the elongation rate of the mRNA during transcription.

The dependent or response variable, is the one the researchers are interested in, meaning, are the characteristics that the researcher will pay attention to and measure during the experiment.

In this example, the researcher is interested in testing the max elongation rate during transcription, which is the dependent variable of this experiment.

In the second part of the experiment, both strains of yeast, wilds, and experimental, where exposed to 40ug/mL solution of amanitin and recorded the maximum elongation rate of the RNA. This is naturally to test the effects of amanitin over the elongation rate of the mRNA in both strains.

The control group is a set of experimental units that are exposed to the same conditions as the experimental groups, with the exception that they receive no treatment (or they receive a "no effective" treatment often called a placebo). The purpose of a control group is to know the natural response of the experimental units to a treatment-free environment, this way when comparing both groups, the researcher will be able to observe the differences or changes due to the applied treatments.

In the second experiment, there are missing two control groups, one made of the wild strain and the other made of the experimental strain, exposed to the same conditions as the treated strains.

I hope this helps!

8 0
3 years ago
True or False? The number of people on this Earth is staying about the same. *<br><br> true or false
Elenna [48]

Answer:

False

Explanation:

Before the Corona Virus every 10 seconds someone was born, every 5 seconds some one would die. (Approximately)

Now with the Corona Virus we are dropping dead like flies!

7 0
3 years ago
Read 2 more answers
Where is the proton located
Anastasy [175]

Answer:

nucleus

have a good day :)

4 0
3 years ago
Read 2 more answers
How many neutrons does this atom have?<br><br> 4<br> 6<br> 10<br> 14
loris [4]

Answer:

I believe there are 6

Explanation:

Protons are the positively charged circles (blue)

Neutrons are the Neutral  (red)

and the others (green) are called electrons

5 0
2 years ago
Read 2 more answers
What do you mean by the stomata apparatus ?​
NARA [144]

Answer:

Stomatal apparatus is a pair of guard cells with or without surrounding subsidiary cells which function as a value to open or close a stomatal pore for gaseous exchange and transpiration. Each stoma is made of two bean-shaped cells called the guard cells.

Explanation:

8 0
2 years ago
Read 2 more answers
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