4. What was the membrane potential (mV) when you decreased extracellular Na? -
Explain why this occurred (think about what happened to the diffusion of Na, the Na* leak channels, and
how that would change the membrane potential.

Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?

Which molecule is called the "molecule of hereditary?

Me ! which of the following is an environmental concern of genetically modified foods? a) crops that are drought resistant are introduced providing food regardless of the unpredictable weather b) reduction cost of production for the crops c) an important ingredient may be introduced in a strain of rice for the poor who depend on rice as a primary food d) toxic substances produced as a pesticide may be consumed by unintended species