I’ve been doin this quiz for about an hour please help 1. A cell needs to take up k+ions the concentration of na+ Outside the cell is 100 ppm and inside is 75 which type of transport will it use

2. Which best describes active transport
A. Using energy membrane proteins pick up particles and move them with the concentration gradient
B. Without energy particles move freely with the concentration gradient
C. Using energy membrane proteins pick up particles and move them against the concentration gradient
D. Using energy qlycoprotiens pick up particles and move them against the concentration gradient