Answer:
<em>The correct option is C) 1,2 and 3</em>
Explanation:
Sodium- Potassium pump: Sodium- potassium pump uses ATP to move sodium and potassium ions in opposite directions against the concentration gradient. In one pump, three sodium ions move outside the cell whereas two potassium ions move inside the cell.
Exocytosis: Exocytosis can be described as a form of active transport in which molecules move out of a cell.
Endocytosis: Endocytosis can be described as a process which utilizes ATP to transport molecules inside a cell.
Answer: The neurotransmitter molecules then diffuse across the synaptic cleft where they can bind with receptor sites on the postsynaptic ending to influence the electrical response in the postsynaptic neuron.
I hope this helps you:)
Answer:
These spheres are closely connected. For example, many birds (biosphere) fly through the air (atmosphere), while water (hydrosphere) often flows through the soil (lithosphere). This two-way cause and effect relationship between an event and a sphere is called an interaction.
