Question: 2. Intestinal Cells Make A Calcium-binding Protein Called Calbindin. Calbindin Is Made Of 79 Amino Acids. Its Synthesis Requires The Active Form Of Vitamin D, 1,25(OH)2 Cholecalciferol, To Turn On The Gene For The Protein. When 1,25(OH)2 Cholecalciferol Is Given To Vitamin D Deficient People, It Takes About 45 Minutes For The Intestinal Cells To Make …

2. Intestinal cells make a calcium-binding protein called calbindin. Calbindin is made of 79 amino acids. Its synthesis requires the active form of vitamin D, 1,25(OH)2 cholecalciferol, to turn on the gene for the protein. When 1,25(OH)2 cholecalciferol is given to vitamin D deficient people, it takes about 45 minutes for the intestinal cells to make the first complete calbindin. A. Identify the major steps that could account for the 45-minute lag in appearance of calbindin. (15 pt) B. Eukaryotic cells attach amino acids to new proteins at the rate of about 2 per second. Is the synthesis of the protein the major part of the lag? (15 pt) 3. A biology student accidentally loses the labels of two prepared slides she is studying. One is a slide of an intestine, the other of an esophagus. You volunteer to help her sort them out. How would you decide which slide is which? (20 pt)