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Scorpion4ik [409]
3 years ago
8

Why does active transport require energy to move molecules of a substance across a cell membrane?

Biology
1 answer:
Fed [463]3 years ago
7 0

Answer:

The substance moves from low to high concentration, against the concentration gradient.

Explanation:

When molecules move from high to low concentration, it is known as Diffusion. It moves with the concentration gradient and does not require energy.

However, when molecules move from low to high concentration, it is against the concentration gradient and cannot proceed without Energy. This process is called Active transport.

Cell membrane is not thick, it is thin and semi permeable.

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How do the cells in meiosis differ from the cells in mitosis?
AfilCa [17]

Answer:

C. Cells in meiosis have unique genetic information

Explanation:

Meiosis is the cell division that forms four daughter cells from one parent cell. It includes two successive divisions called as meiosis I and meiosis II. Crossing over during prophase I of meiosis I imparts new gene combinations to the daughter cells of meiosis. Hence, daughter cells formed by the end of meiosis have some new gene combinations, that is, unique genetic information.

5 0
3 years ago
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Phosphatidylethanolamine has alternate pathways for synthesis. The reactions represent these pathways. Complete the reactions by
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Find the attachment for the answer.

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3 years ago
Describe how the ecosystem changed from figure 1 to figure 4.<br> no links, please. <br> thank you
AysviL [449]

Answer:

In the ecosystem, the tides of the water rise in each figure. In figure 4, there is an increase in land animals present, and a lower amount of aquatic animals present. In the first figure, there are no birds, however there are multiple in the rest of the figures, this is possibly due to migration in the winter or that the ecosystem has drawn birds near. The types of plants change throughout each figure which is most likely to new adaptations such as more water available. The tides most likely rose because of more precipitation.

Explanation:

I hope this helped.

5 0
2 years ago
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Which general tissue is responsible for transporting substances?
vampirchik [111]
Hello,

Here is your answer:

The proper answer to your question is option B "Vascular"! Vascular tissues are responsible for transporting water around the body!

Your answer is B.

If you need any ore help feel free to ask me!

Hope this helps!
4 0
3 years ago
Communication between sdn controllers and routers is governed by ________.
galben [10]

Answer;

-Northbound APIs

Communication between SDN controllers and routers is governed by Northbound APIs.

Explanation;

-The northbound application programming interface (API) on an SDN controller enables applications and orchestration systems to program the network and request services from it.

-Northbound APIs can enable network functions like path computation, loop avoidance, routing and security. The northbound APIs can also used to facilitate innovation and enable efficient orchestration and automation of the network to align with the needs of different applications via SDN network programmability.

3 0
2 years ago
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