What does agar do Study guides, Class notes & Summaries

MICROBIOLOGY PORTAGE - MODULE 4 MICROBIAL GROWTH AND CONTROL EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED GRADED A+ Expanding a given microbial population allows researchers to do what? to detect and assess the microorganism more easily What is Growth Media? Growth media is a liquid or solid formulated to support microbial growth. What does Growth Media contain? The media contains essential nutrients to provide the microbe with a source of carbon/energy. The nutrient composition often...

The __________ method is a quick and easy way to isolate bacteria - streak plate in what orientation do you incubate the plates after they have been streaked? - agar half on top what must you do to the loop before every use? - flame sterilize your loop T/F: The last thing you do before leaving the lab is take off your lab coat - False T/F: When performing a T-streak, the loop goes into the tube 3 times (once for each section of the plate) - False T/F: You do not heat a pipette in ...

Microbiology Lab Review Questions with Certified Answers Explain why the body tube of the microscope should not be lowered while you are looking through the ocular lens. to ensure that the slide or lens is not broken For what purpose would you adjust the Iris diaphragm? adjust the amount of light coming through the specimen For what purpose would you adjust the course-adjustment knob? to bring the specimen into view For what purpose would you adjust the fine adjustment knob? to bring the spe...

BIOD 171 lab exams 1-9 LAB 1 Answer the following questions 1. What three elements are used in an autoclave to sterilize equipment? heat, pressure, and steam 2. What is the minimum temp erature an autoclave must be set at to achieve sterile condition? 125°C 3. If you are working in a lab in which an autoclave is not available, and you are pressed for time, which would you chose to best sterilize your equipment? Hot steam or hot air? Explain why you chose your answer. Hot steam is the best choic...

There are two cell types - prokaryotic and eukaryotic. List the 7 classes or basic types of microorganisms and identify each as prokaryotic, eukaryotic, both prokaryotic and eukaryotic, or neither. - ANSWER 1. Bacteria- prokaryotic 2. Archaea- prokaryotic 3. Algae- eukaryotic 4. Fungi- eukaryotic 5. Protozoa- eukaryotic 6. Helminthes- eukaryotic 7. Viruses- neither What is a bacterial endospore? Explain how endospore-forming bacteria could cause a scientist to believe in spontaneous gen...

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 ...

2nd SET OF ATI TEAS 7 SCIENCE Questions with complete solution What is the function of the Vas Deferens? Makes fluid to increase sperm mobility Site where the eggs mature Helps control urine flow Connects each testis to the urethra - correct answer Connects each testis to the urethra Dysentery is an infectious disease caused by what type of microbe ? Helminth Bacteria Protozoan Fungus - correct answer Protozoan Which of the following best describes the relationship am...

What is a parfocal? correct answer: ~Ability of a microscope to switch powers with minor adjustments in focus ~Ability to switch from one objective to another without altering the focus What is the definition of resolving power? correct answer: The ability of an optical instrument to separate or distinguish small or closely adjacent images. What is the total magnification through a 10x ocular & 100x objective? correct answer: 1,000x How do you calculate the scale of a drawing? corre...

BACE Review Questions and Answers 2024 Structural component of cell membrane, Ex: Phospholipid Lipid A chemical bond that involves the sharing of electron pairs between atoms. What is the most likely reason there is an unexpected band in a PCR reaction? Using too low temp. What should be included on the gel to enable you to determine actual sizes of the DNA fragments? Molecular weight marker and DNA Ladder What is MRNA? What the order of amino acids on a polypept...

CSMLS Practice Exam - Questions and Answers (Complete Solutions) Which is the detector of choice for nephelometers? a. diode array b. photomultiplier tube c. gas photodiode d. LED Which statement regarding turbidimetry is NOT correct? a. light scattered by solutes in the solution at 180° from the incident light is measured by a photon detector b. the measurement of light is made at right angles to the incident light c. scattered light is directly proportional to the number of particles in sol...