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2 years ago

The illustration is a representation of the different ways molecules are transported across a

Biology

1 answer:

Liula [17]2 years ago

8 0

The illustration is a representation of the different ways molecules are transported across a cell membrane, that represents active transport is IV.
Active Transport is described as a process that involves the movement of molecules against a gradient or an obstruction from a location of lower concentration to a region of greater concentration.
A protein pump uses ATP, which is a form of stored energy, to move molecules during active transport.The process of active transport, which moves molecules using ATP as an external energy source.
Some examples of active transport include the absorption of glucose in the human intestine and the uptake of minerals or ions into the root hair cells of plants.
Active transportation comes in two flavors:

Primary active transport
Secondary active transport.

To know more about active transport check the below link:

brainly.com/question/11219338

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Kamila [148]

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3 years ago

True or False: Cold temperatures could be an example of a stimulus.

AleksAgata [21]

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3 years ago

List the atmospheric layers, temperature, altitude and density of those layers, and a unique object found in those layers.

Fiesta28 [93]

Five layers of the atmosphere are troposphere, stratosphere, mesosphere, thermosphere and exosphere.

Explanation:

Troposphere is the lowermost layer of the atmosphere which is found in the 0-12 km range. The temperature of the troposphere ranges from 15°C to 51°C. Aircrafts driven by propellers can access the troposphere only.

Stratosphere is the layer of atmosphere that is second from earth. It is found in the 12-50 km range. Its temperature ranges from -51°C to-15°C. Jet-powered aircraft can access the stratosphere.

Mesosphere is the third atmospheric layer. It is found in the 50-85 km range. Its temperature ranges from -15°C to-120°C. rockets and rocket-powered spacecraft can access the mesosphere.

Thermosphere is the fourth atmospheric layer. It is found in the 500-100 km range. Its temperature ranges to about 2000°C. the International Space Station orbits in the thermosphere.

Exosphere is the topmost atmospheric layer. It extends to 10000 km above earth. Its temperature is greater than 2000°C. most of the satellites that orbit the earth are found in the exosphere.

The density of atmospheric layers decreases while moving up along the layers. Thus troposphere has the maximum density.

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3 years ago

When the concentration of molecules on both sides of a membrane is the SAME, the solution is

Brilliant_brown [7]

Answer:

When the concentration of molecules of a substance is the same on both sides of a membrane the solution is isotonic.

Explanation:

A given substance, when it has the same concentration on both sides of the membrane, is in equilibrium and the solution is called isotonic, from the extracellular space with respect to the cytoplasm.

The cell membrane is semipermeable to the passage of water and some substances. Hypertonic and hypotonic solutions tend to establish the dynamics of entry and exit of molecules or water, due to the concentration or osmotic gradients that are established, respectively.

An isotonic solution does not generate gradients, because the concentration of molecules is equal in the extracellular space with respect to the intracellular space.

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3 years ago

Which is an accurate description of the growth of a natural animal population?

andre [41]

Answer:

The answer is A

Explanation:

It is limited by environmental factors. A population of organisms cannot survive if it exceeds its carrying capacity. There are also limiting factors, such as predators, disease, etc.

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3 years ago

Read 2 more answers