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ryzh [129]
3 years ago
15

to correctly measure the amount of water diffusion occurring when water moved over a selectively permeable membrane, you needed

to look at how much corn syrup had diffused out of the thistle tube into the beaker.
Biology
1 answer:
larisa [96]3 years ago
6 0

There are specific methods to be used when measuring the rate of diffusion over a membrane.

In order to accurately measure the rate of diffusion for water through this permeable membrane you need to account for:

  • The difference in pressure
  • The surface area of the membrane
  • The diffusion barrier

It would be correct to state that the speed at which any movement of water occurs is dependent on the pressure being exerted onto the water. This means that when attempting to calculate the rate of diffusion we need to account for the pressure difference. This pressure will be caused by the osmotic gradient.

You will also need to account for the surface area of the membrane and the diffusion barrier. The <u>surface area </u>of the membrane allows us to understand how much <u>space </u>the water has to be able to move from one side to the other. Meanwhile, the <u>diffusion barrier </u>tells us how much <u>resistance </u>the water will have to overcome when diffusing.

By taking all of these parameters into account, we can then use Fick's law to accurately calculate the rate of diffusion for the water and therefore the amount of water that is diffusing through the membrane.

To learn more visit:

brainly.com/question/24746577?referrer=searchResults

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In humans, dimples (D) are dominant over no dimples (d). Curly hair (A) is dominant over
jeyben [28]

Answer:

1. ddaa

2. DdAa

3. One from each parent

4. False

5. 0.25

6. 0.25

7. 0.25

8. 0.5

Explanation:

The remaining part of the question is  

1. What is Jane's genotype?  

2. What is Paul’s genotype?  

3. Where did Jane get her gene for curly hair? From her mother or father?  

4. True or False: Jane's mother was heterozygous for curly hair?

5. What fraction of Paul and Jane's children should have curly hair and dimples?  

6. What fraction of their children would have straight hair and no dimples?  

7. What fraction should have dimples but not curly hair?  

8. What is the probability of getting any offspring with dimples

Solution

1. Genotype of Jane's mother -ddaa

2. Genotype of Paul (heterozygous for dimples and curly hair) – DdAa

3. One “a” gene from mother (whose genotype for hair was aa) and second “a”gene from father (whose genotype was  Aa)

4. False.  She was having straight hair

5. Offspring of  Paul and Jane  

DdAa (4), Ddaa (4), ddAa(4) and ddaa (4)

4 out of 16 offspring will have curly hair and dimples = 0.25

6. ddaa, 4/16 = 0.25

7. Ddaa , 4/16 = 0.25

8. Ddaa, DdAa, 8/16 = 0.5

6 0
3 years ago
Which is the best hypothesis for the extinction of the dinosaurs at the end of the Cretaceous period?
Setler79 [48]
I think the answer will be A.
3 0
3 years ago
A gymnosperm is in the sporophyte phase of its life cycle. Which of the following most likely happens next in the gymnosperm's l
IrinaK [193]
I believe the answer is: <span>Spores are released into the environment and grow into male and female gametophytes.
This Phase happens after </span>a haploid egg cell is fertilized by a haploid <span>sperm and then released to the environment. . This will result on Double sites of chromosomes that held by each parent (</span><span>grow into male and female gametophytes.)</span>
7 0
3 years ago
Read 2 more answers
Despite the appeal of renewable energy sources, they currently comprise less than 14% of our global energy supply and generate l
jenyasd209 [6]

Answer:

Which of the following statements would you classify as solutions to the relatively low utilization of renewables in our energy mix? Select all that are true.

1. inclusion of the environmental costs of fossil fuels in their price

3. a shift of federal subsidies from fossil fuels to renewables

5. fossil fuel industry receives government subsidies

9. increased research and development funding for renewables

Which of the following statements would you classify as causes of the relatively low utilization of renewables in our energy mix? Select all that are true.

4. fossil fuels are far cheaper than renewables

6. fossil fuels are rich in energy

Which of the following statements would you classify as consequences of the relatively low utilization of renewables in our energy mix? Select all that are true.

2. fossil fuel combustion creates smog and acid precipitation

7. greenhouse emissions spur climate change

8. fossil fuel extraction alters and fragments habitat

Explanation:

The relatively low utilization of renewables in our energy mix can be solved by effectively increasing the cost of fossil fuels and reducing the cost of renewables. This can be achieved through one or a combination of the following factors :

Inclusion of the environmental costs of fossil fuels in their price.

A shift of federal subsidies from fossil fuels to renewables .

Fossil fuel industry receives government subsidies .

Increased research and development funding for renewables .

Some of the causes of the relatively low utilization of renewables in our energy mix include the cheaper costs of fossil fuels compared to renewables  and the richness in energy  content of fossil fuels. Other reasons include consumers' unwillingness to adapt to the new technological requirements of renewable energy.  

The consequences of the relatively low utilization of renewable energy in our energy mix include smog and acid precipitation, an increase in greenhouse emissions, and habitat alteration and fragmentation during extraction.

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Explain how the various specialiesed cells are modified to Cary out to their function 20mark​
Pani-rosa [81]
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8 0
3 years ago
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