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Juli2301 [7.4K]
3 years ago
15

Why doesnt plants and bacteria expand when it reaches water

Biology
1 answer:
kap26 [50]3 years ago
5 0

When the plants and bacteria reach water, they get into a hypotonic solution means, the concentration of solutes is greater inside the cell than outside of it. When the plant and bacteria are placed in water, they take up water by osmosis and starts to swell, but the cell wall prevents it from bursting. The plant cell become turgid. Turgidity means the cells are swollen and hard. The increase in pressure makes the cell rigid. This is why they do not expand and burst.

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A material was cooled from 100ºC to 40ºC. What is the temperature change?The specific heat of water is 4.18J/goC. I need the ful
Alexxandr [17]

Answer:

-60°C

Explanation:

According to this question, a material was cooled from 100ºC to 40ºC.

The temperature change, which is symbolized by ∆T = final temperature - initial temperature

That is, ∆T = T2 - T1

In this question, T2 = 40°C, T1 = 100°C

Hence, ∆T = 40°C - 100°C

∆T = -60°C

8 0
2 years ago
In a Hardy-Weinberg population with two alleles that show complete dominance, the frequency of the recessive allele is 0.4. What
Flura [38]

The correct answer is E)52

When there is Hardy-Weinberg equilibrium like in this case of a single locus with two alleles denoted A and a with frequencies f(A) = p and f(a) = q, the expected genotype frequencies under random mating are f(AA) = p² for the AA homozygotes, f(aa) = q² for the aa homozygotes, and f(Aa) = 2pq for the heterozygotes. Let's put that A is dominant and a is recessive allele. In Hardy-Weinberg equilibrium we have:

p²+2*p*q+q²= 1     p+q=1      p=1-q

f(a) =0.4=q            q²=0.4²=0.16=16%    

p= 1-0.4=0.6         p²=0.6²=0.36=36%

Percentage of a homozygous genotype in the population is 16%+36%=52%




5 0
3 years ago
Explain whether opening and closing your eyes is voluntary or involuntary
shtirl [24]
Hello there!

Closing your eyes is voluntary.


Hope I helped!

Let me know if you need anything else!

~ Zoe
4 0
3 years ago
Where do the three steps of cellular respiration occur?
valkas [14]
It occurs in the mitochondria
7 0
3 years ago
What is the primary difference between prokaryotic and eukaryotic cells?
irina1246 [14]
The answer would be eukaryotic cells have membrane-bound compartments called organelles, whereas prokaryotic cells do not. hope this helps!! :D
6 0
3 years ago
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