ISU Bio 101 Final Exam 2 Questions All Solved Correct Edition.

Cell Theory - Answer All living organisms are made up of one or more cells and all cells arise from other preexisting cells Cell - Answer smallest unit of life that can function independently and preform all the necessary functions of life including reproducing Eukaryotic Cell - Answer a cell that has a central control structure called a nucleus which contains the DNA Prokaryotic Cell - Answer a cell that does not have a nucleus; the DNA simply resides in the middle of the cell Plasma Membrane - Answer held together by hydrophobic and hydrophilic interactions Cell Membranes - Answer gatekeepers of the cell; isolate the cell but allow communication Fluid Mosiac Model - Answer molecules are embedded within the plasma membrane to help perform functions Membrane Proteins - Answer receptor, recognition, transport, enzymatic Cellular Fingerprint - Answer carbohydrates, proteins and other surface features Carbohydrates and Plasma proteins - Answer identity the cell to other cells Phospholipids - Answer makes up the majority of plasma membranes Cholesterol - Answer influences membrane fluidity Diffusion - Answer the movement of particles from a higher concentration to a lower concentration Passive Transport - Answer molecules move across a membrane without energy input