Similarities:
Both involve ion movement. Both use ion channels to move ions across the cell membrane, in or out of the cell.
Differences:
Passive Transport (or Diffusion) moves ions from high concentration to low, using no metabolic energy. Active Transport moves ions from low concentration to high, using metabolic energy in the form of ATP. Active Transport uses an ion pump (or Sodium/Potassium pump) to move 3 sodium ions out of the cell and 2 potassium ions in to the cell through the energy of 1 ATP molecule.
Answer:
Soil texture.
Explanation:
The texture of soil is the main reason for its hardness and compact nature because texture of soil shows the characteristics of soil. There is high concentration or ratio of clay present in the soil which makes the soil hard and compact. Due to this texture, wild plants grow in this soil texture as well as poorly drained. So we can say that the texture of soil is responsible for its hardness.
Answer:
cell membrane
Explanation:
it has small pores thus it is semi permeable
Freely by diffusion.most small gases can freely cross the plasma membarane
Options B, C, D, this rock has some coarse grains, the grains are very big and it has a non-banded pat-tern, are the right answers.
The rock in the given image can be recognized as the Granite rock. It is a popular type of felsic impertinent igneous mineral that is phaneritic and granular in texture. Depending on their mineralogy the color of the Granite may vary from white to pink and grey.