Find the net force (magnitude and direction) on q1 due to the other two charges. All three of the angles in the triangle are 60°.

How can you help to prevent muscle cramping during an athletic event?

How many molecules thick are biological membranes?

Which of the following statements concerning receptor enzymes is INCORRECT?

Consider the transport of H+ from an epithelial cell (pH of 7.4) into the stomach lumen if the pH of gastric juice is 2.1, the potential difference across the membrane separating the cell and the interior of the stomach is −60.0 mV (inside of the cell is negative relative to the lumen of the stomach), and the temperature is 37 °C. What is the free-energy change for this transport process?  

The two monosaccharides shown below could BEST be described as:   

Consider the following Fisher projection Which structure depicts the corresponding α anomer?  

Which of the following intermediates would NOT be found as part of the mechanism for Ca2+ pumping by SERCA?  

From the abbreviated name of the compound Glc(12)Gal, we know that:

A core of eight histone proteins with DNA wrapped around it and a ninth histone protein on the outside is called