Answer:
When the required direction of transport is opposed to concentration levels, a cell <u>will </u> expend energy to force<u> ions</u> across its membrane.
Explanation:
If the concentration gradient is opposite to the direction of transport of minerals, then the cell will use energy to transport mineral ions from a lower concentration to a higher concentration. The most common process through which this happens is termed as the active transport.
The process of active transport is opposite to passive transport. In passive transport, molecules move from a higher concentration to a lower concentration.
A. A reason for the increased use of electricity is the increasing population; more people are being born, more people are using electricity.
b. A strategy to reduce the amount of fossil fuels is for more people to use electric cars where the electricity is sourced naturally. Perhaps the government could implement a system where drivers of electric cars could be rewarded.
Explanation:
La principal diferencia entre la digestión mecánica y química es que la descomposición mecánica de partículas de alimentos grandes en partículas de alimentos pequeñas ocurre en la digestión mecánica, mientras que la descomposición química de compuestos con un alto peso molecular en compuestos con un bajo peso molecular
