D it’s the brain of the cell
Answer:
i) iv) ii) iii)
Explanation:
The excitable cell begins being in a resting state, with a negative charge, -70 mV. First (i) there is a stimulus of influx of sodio into the cell, if the stimulus is strong enough and exceeds -55 mV, the threshold potential, then an action potential will occur. (iv) A strong influx of sodium that deporalizes the cells causes a change to a positive charge in the cell. (ii) Then potassium efflux from the cell in large quantities, which repolarizes the cell. (iii) With a continuous efflux of potassium the cell can become more negative than the resting potential, this is called hyperpolarization.
Answer:
d. differentiation
Explanation:
Developmental potential refers to the ability of a cell to form other cell types. A cell may retain the ability to form other cell types or become specialized to perform specific functions. The process of specialization of cells into specific cell types generally limits their ability to form all cell types and is called differentiation.
For example, differentiation of RBCs include loss of organelles and making space for hemoglobin protein. Mature RBCs loose nucleus and can not divide at all.
For some reason I thought it was D) cellular respiration as C) photosynthesis dealt with plants and light.
