Author: Anonymous

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)

What is the primary function of the pneumotaxic center?

The root “fabula” means?

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 $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).

Following the birth of twin girls, you inspect the fetal membranes. Which one of the following findings would lead you to conclude that the twins MUST be identical (monozygotic)?

To treat intractable spasticity, a patient undergoes a selective dorsal rhizotomy procedure in which all of the dorsal roots from spinal levels L2-L4 on the right side are completely severed. What is the effect of this procedure on the patellar tendon reflex test on the patient’s right side?

A tennis player severely “rolls” his ankle and suffers an infrasyndesmotic avulsion fracture of the lateral malleolus. The lateral malleolus is a part of which one of the following structures?

What does the abbreviation PWB stand for?

CC has had 2 pints of Gatorade and 24 ounces of orange juice. How many ml’s has CC consumed?