Which of the following is NOT true about facilitated diffusion?
it is a form of passive transport
it moves molecules from high concentration to low concentration
D
it requires the use of a channel protein
o It requires energy
Question 4
2 pts

Sammi is studying the interaction of the digestive and circulatory systems in the human body. she has listed various processes that occur in each of the systems. put the processes in order to describe the interaction between these two systems. tiles nutrients diffuse through the villi of the small intestine. digestive processes break nutrients down in the mouth, stomach, and small intestine. blood is pumped through the circulatory system to deliver nutrients to other organs. nutrients are ingested at the mouth. nutrients enter the capillaries of the circulatory system. sequence

Glycogen is an energy-storage molecule in humans. a hormone that is called insulin controls the storage of glycogen in the liver. insulin is made up of amino acids.

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.