Ooga booga

When polar molecules and ions (aka big molecules that need help crossing the bilayer) move across the cell membrane via passive transport, it it exocytosis or endocytosis, or both, or neither?

what are the 4 macronutrients and the 2 micronutrients

Which of the following functions has a factor of x + 6? A: F(x)= x^3 + 12x^2 + 20x - 96 B: F(x)= x^3 + 12x^2 + 20x - 90 C: F(x)= x^3 + 0x^2 - 52x + 96 D: F(x)= x^3 + 0x^2 - 52x + 90

I messed that up. Hers the better question What 4 nutrients are called MACRONUTRIENTS? Why are they called macronutrients? What 2 nutrients are called MICRONUTRIENTS? Why are they called micronutrients?