BOT 331 Exam 1 Questions With Verified Answers

Main components of plant structure - Answer Root and Shoot plasma membrane - Answer A selectively-permeable phospholipid bilayer forming the boundary of the cells Phospholipids - Answer a lipid consisting of a glycerol bound to two fatty acids and a phosphate group. integral proteins - Answer embedded in the membrane peripheral proteins - Answer bound to the surface of the membrane by ionic of h bond Anchored proteins - Answer bound to membrane via lipid molecule or fatty acid Nucleus - Answer contains genetic material Transcription - Answer Information from genes is transcribed into mrna and used for translation into proteins Nucleolus - Answer ribosome synthesis thykaloids stack to form - Answer granum thykaloids have - Answer chlorophyll and proteins Perozisomes - Answer remove hydrogen from organic substrates and gut rid of H2O2 w enzyme catalase Oleosomes - Answer oil containing bodies surface tension - Answer A measure of how difficult it is to stretch or break the surface of a liquid tensile strength - Answer the resistance of a material to breaking under tension Capillarity - Answer combination of surface tension, cohesion, and adhesion Diffusion - Answer Movement of molecules from an area of higher concentration to an area of lower concentration. Bulk Flow - Answer The movement of water due to a difference in pressure between two locations. Apoplast Pathway (water movement) - Answer water movement only though the interconnected matrix of the cell walls Transmembrane pathway - Answer describing a water collection route where water crosses membranes symplast pathway - Answer Water enters the cell cytoplasm through the plasma membrane. It can then pass through the plasmodesmata from one cell to the next.