Which type of solute below travels across the membrane most easily?

If a cell containing 15% solute is placed in a solution containing 85% water, which way will water move by osmosis?

Without the Na/K pump:

Compare and contrast primary active transport and secondary active transport. You must mention at least one specific similarity besides the fact that both function in membrane transport. You must mention at least one specific difference in their functions.  Answers must be in complete sentence and follow the rules of grammar.

Which structure is the site of synthesis of proteins that will be sent to the extracellular environment?

Find the arc length of the smooth curve r(t)

A car is driving around a curve.  Find the tangential and normal components of acceleration at t=3 seconds given the unit tangent vector T(t)

Analyze a student’s work finding the curvature of r(t)

Find the unit tangent vector function, T(t), for 

Explain how T, N, and B are formed.  Explain the relationships(s) between them.  Why find/study these?