Biology 1 Lab Tarleton State University First Exam!

Peroxidase enzymes break down _____ and produce a natural by-product ____. However, Peroxidase itself remains ________ {Ans: Peroxidase (enzyme) breaks down hydrogen peroxide and produce cellular respiration (water + oxygen). Peroxidase (in this experiment it is the potato) will remain unchanged but oxygen bubbles will be produced!}What is a cell (plasma) membrane? {Ans: The flexible/semi-permeable boundary between the living cell and it's surroundings.}Parts of a microscope {Ans: eyepiece, objective lens, fine adjustment know, course adjustment knob, stage, stage clips, diaphragm (look at picture in lab manual)}What are enzymes? {Ans: biological catalysts that speed up chemical reactions necessary for cells to function. They do this by lowering activation energy (the energy needed to start reactions)}What are compound microscopes? {Ans: - Most common type of lab microscope (Used in OUR lab) - Has two set of lenses (contained in eyepiece and the objective respectively)}What is osmosis? {Ans: how water moves across the plasma membrane}