Which of the following is required for active transport to occur?

What molecule consists of an adenine, ribose and a string of phosphates?

The sodium-potassium pump moves sodium into the cell while also moving potassium out of the cell.  What term describes this pump?

Which of the following is a biological catalyst that brings molecules into the correct position to react?

What electron carrier(s) from the citric acid cycle are used to send electrons to the electron transport chain?

Molecules transported via passive transport move with the concentration gradient and require energy.  

Blending Problem: Frederick’s Feed company receives four raw grains from which it blends its dry pet food. The pet food advertises that each 8 oz. can meets the minimum daily requirements for vitamin C, protein and iron. The cost of each grain as well as the vitamin C, protein and iron are summarized below. grain Vitamin C (units/lb) Protein (Units/lb) Iron (Units/lb) Cost (lb) 1 9 12 0 0.75 2 16 10 14 0.90 3 8 10 15 0.80 4 10 8 7 0.70    Frederick’s is interested in producing an 8 oz. mixture at minimum cost while meeting the daily requirements of 6 units    of vitamin C, 5 units of protein and 5 units of iron.    Formulate this as a linear program: Assume 4 decision variables, x1,x2,x3 and x4.   LHS SYMBOL RHS Vitamin [a] [b] [c] Protein [d] [e] [f] Iron [g] [h] [i] 1/2 lb x1+x2+x3+x4 = 0.5

What is the mass of 500 mL of water? The density of water is 1 g/cm3. g

3 ft 7 in = in

23oF = oC