The movement of matter across a cell membrane against a concentration difference is called (active transport / passive transport / facilitated diffusion / osmosis), and it requires (aquaporins / energy / homeostasis / osmotic pressure). 


Active transport is the movement of matter across a cell membrane against a concentration difference, this process requires energy.

The mode of transport that demands the consumption of metabolic energy is called activated transport, since the movement is carried out against a gradient of chemical potential.

It is a transport that is carried out against the gradient, be it concentration or electrical and, consequently, energy expenditure in the form of ATP will be required.Active transport is carried out by means of pumps and also presents forms of monotransport, cotransport and countertransport.

Therefore, we can conclude that active transport requires energy to be carried out, since it is a type of movement that goes against the concentration gradient.

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active transport, energy

Explanation:

Moving against a concentration gradient requires energy, so it is known as active transport, as opposed to passive transport, which involves moving with a concentration gradient and doesn't require energy.

The answer would most likely be A.

Explanation: If the Black Bears diet mainly consists of black berries, and a large scale forest fire breaks out, this would dramatically affect the Black Bears population.