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3 years ago

In active transport what way do molecules move? Is energy used?

1 answer:

n200080 [17]3 years ago

6 0

Active transport uses cellular energy to move molecules based on the concentration level and Passive transport doesn't require energy to move molecules within their cells.

EXPLANATION:

Active transport uses cellular energy for this movement. It uses energy stored in ATP to begin the transport. This means that the molecules transfer from an area where it is less in number to an area with a high concentration of molecules.

But Passive transport specifies the movement of molecules across cell membranes which doesn't require energy as it depends on the cell membrane's penetrability. Molecules just have to circulate in or out of the cell.

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The surgical placement of an artificial joint is known as

Alekssandra [29.7K]

Answer:

Arthroplasty

Explanation:

The restoration of function of a joint is called Arthroplasty. The bone functions are restored by maintaining the bones through resurfacing. Some times artificial joints are also used instead of resurfacing the existing bones.

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3 years ago

A dwarf planet is a

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Answer:

a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape,2 (c) has not cleared the neighbourhood around its orbit, and (d) is not a satellite.

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3 years ago

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How are fossil fuels formed?

maria [59]

Answer:

They are made of decayed organisms

Then it's c

Explanation:

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2 years ago

In the northern hemisphere, winds associated with a low-pressure system system blow ___. ?

Lelu [443]

<h3>Answer;</h3>

A. counterclockwise toward the center

<h3>Explanation;</h3>

In the Northern Hemisphere, winds associated with a low-pressure system blow in a counterclockwise direction towards the center, while those that are associated with a high-pressure system blow in clockwise direction outwards from the center.
In the Southern Hemisphere on the other hand, winds that are associated with a low-pressure system blow clockwise towards the center.
The rotation of the earth creates a force called the Coriolis force, which gives the wind that is within high pressure systems a clockwise circulation in the northern hemispheres and a counterclockwise circulation in the southern hemisphere.

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3 years ago

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The lab setup shows four test tubes. Tube 1 contains water only. Tube 2 contains a live snail. Tube 3 contains a live green wate

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Answer:

I would assume D

Explanation:

Tube 1 doesn't contain an organism so it can't be that one. Both a snail and a plant are considered an organism, and cellular respiration occurs in almost any organism's cells

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2 years ago