Author: Anonymous

To acidify the lumen of lysosomes (compartments in the cell…

To acidify the lumen of lysosomes (compartments in the cell involved in breakdown and recycling of biomolecules), V-type ATPase transporters are used to pump protons (H+) into the lumen (interior) of the lysosome. If the pH of the inside of the cell (cytosol) is 7.4 (4 x 10-8 M H+) and the luminal pH of the lysosome is 4.0 (1 x 10-4 M H+), calculate the free energy for a mole of protons (H+) to be pumped from the cytosol into the lumen of the lysosome. Note: We can consider, when determining membrane potential, that the movement of a solute molecule from the cytosol into the lumen of a lysosome is the same as movement from the inside of the cell to outside the cell. Assume: ΔGt = RT ln(C2/C1) or ΔGt = RT ln(C2/C1) + Z FΔψ T= 310 K R= 8.315 J/mol*K F= 96,480 J/mol*V (Faraday’s constant) Δψ = −50 mV (membrane potential, inside)

At the beginning of the year, Activewear Store Inc. had $300…

At the beginning of the year, Activewear Store Inc. had $300,000 of merchandise inventory. During the year, Activewear made inventory purchases of $850,000 and earned a gross profit of $540,000 on sales revenues of $1,200,000. Activewear’s cost of goods sold and ending inventory, respectively, are:

Jewelry Store Inc. has a merchandise inventory balance of $1…

Jewelry Store Inc. has a merchandise inventory balance of $110,000 on November 1. To meet its budgeted sales in December, Jewelry Store’s inventory balance needs to be $200,000 on December 1. In November, Jewelry Store expects to earn a $112,500 gross profit on sales revenues of $150,000. What amount of inventory should the company purchase during the month of November? Round to the nearest whole dollar and do not enter a dollar sign or a decimal point (e.g., enter 89, not $89.00).