Respuesta :
Answer:
D. ACTIVE TRANSPORT THROUGH A PUMP PROTEIN.
Explanation:
The process is one which is from a low concentration outside to a high concentration inside (against the concentration gradient) and it requires energy.
Amino acids and monosaccharides can be transported into the cell by facilitated diffusion with the help of a transporter protein and through active transport.
For the question, the appropriate answer is active transport via a pump (Secondary active transport)
An example is the sodium cotransport.
In this process, sodium is transported alongside another substance like amino acids. The energy needed for the movement of sodium is obtained from ATP while the energy released by the movement of sodium is used for the transport of amino acids and glucose.
The means of transport used for small molecules against concentration gradient has been active transport through pump protein. Thus, option D is correct.
The transport of the molecules from high concentration to low concentration has been against the concentration gradient and is driven by the energy of the proton motive force.
The transport of amino acids and monosaccharides from low concentration to high concentration thus has been mediated with energy delivered by the molecules co-transport.
Thus the transport of a molecule along with the potential gradient results in the release of the energy that has been used by the molecules to be transported against the potential gradient.
Thus the transport has been an active transport with the energy requirement through protein pump. Thus, option D is correct.
For more information about transport across the membrane, refer to the link:
https://brainly.com/question/17404910
