Brownian motion - Study guides, Class notes & Summaries

Gram positive bacteria do not retain CV when gram stained, so they appear pink after counter-staining with safranin. T/F - False. They do retain crystal violet and appear purple Complex media is made with precise chemical composition. T/F - False. Complex media has unknown composition ______ is an opportunistic pathogen that causes staph infections. - Staphylococcus aureus A durham tube is included in the LT broth tubes to detect _________, a byproduct of lactose fermentation - gas product...

characteristics of the net movement of all molecules? - -is predictable -directed from high to low concentration -stops when it reaches equilibrium what is the First Law of Thermodynamics? - energy can neither be created nor destroyed, but can change from one form to another the passive movement of molecules - diffusion what type of thermal movements is diffusion driven by? - Brownian characteristics of individual molecules? - -random, unpredictable motion -not directed to low concentrat...

BOT3015 EXAM 3 Marking Scheme 2024 100% Correct Brownian movement - Answer- molecules /ions in constant random motion Diffusion - Answer- movement of molecules or ions from region of higher concentration to region of lower concentration Molecules that are moving from a region of higher concentration to a region of lower concentration are said to be moving ______________________________ - Answer- Along a diffusion gradient molecules moving from regions of low to high concentration are sai...

Cell Biology CMB1004 Biophysics Exam Questions With 100% Verified Answers What amphipathic molecules? - answerMolecules that have both a polar and a non polar region In terms of water, what is a hydration shell of interaction? - answerWater molecules will surround the polar/charged molecules in a cage Why is water good at dissolving charged/polar molecules? - answerWater is dipolar, so it can hydrogen bond with itself and other molecules Why does water have an unusually high boiling point...

True/False: Gram stains and spore stains are examples of simple stains. - FALSE What causes bacterial endospore formation? - Response to environmental conditions, i.e., lack of nutrients What are the 4 phases of microbial growth? - Lag, exponential/log, stationary, death True/False: we will measure the optical density over time to determine growth rate. - TRUE Define generation time. - Time for population to double What does it mean for a culture to be in stationary phase? - Rate ...

Pertaining to the Gram Stain, cells that retain crystal violet & appear purple are said to be __________ - Gram positive Pertaining to the Gram Stain, cells that do not retain crystal violet & appear pink are said to be Gram ________ - Negative coliform are a subgroup of enteric bacteria classified by their ability to ferment which sugar? - lactose define generation time - the time required for the population to double in number growth only along the path of the inoculating needle indicat...

Absolute Temperature A temperature value relative to absolute zero. Absolute Zero The lowest possible temperature of a system, where no heat remains and the particles in the system have no kinetic energy. Avogadro Constant The number of particles that make up one mole of any gas. Boltzmann Constant A constant relating the average kinetic energy of the particles in a gas, to the gas’ temperature. Boyle’s Law The pressure of an ideal gas is inversely proportional to its volume when ...

CPCS 1010 Exam 2 Questions and Answers 100% Correct CPCS 1010 Exam 2 Questions and Answers 100% Correct CPCS 1010 Exam 2 Questions and Answers 100% Correct CPCS 1010 Exam 2 Questions and Answers 100% Correct kinetic energy - ANSWER-the constant state of motion that is responsible for the state of matter or an object. the greater the kinetic energy, the greater chance the substance will exist as a liquid or a gas. Absolute Zero - ANSWER-The temperature at which all kinetic energy cease...

PCOL 355 Final Review Questions with Answers All C What type of bond is broken with physical instability? A. non-covalent bonds B. covalent bonds C. ionic bonds - Answer-A. non-covalent bonds This is a true/false question. The ANDA is filed with the FDA after completion of clinical trials phases 1-3 for a generic drug product. A.True B.False - Answer-A. True Which sugar is used in special circumstances instead of sucrose in pharmaceutical syrups? A. sorbitol B. glycerin C. propylene...

How does temperature influence diffusion?as temperature increases, the time of diffusion increases. heat increases the influence on Brownian motion of molecules and will make them move much faster. as they move faster, they distribute faster. How might the application of heat/ice to an injured body part relate to the above concept in the body?applying ice to a body part decreases the movement of fluid/solutes, therefore reducing the amount of swelling. heat, on the other hand, will increase the...