BIOS 242 (BIOS242)

total magnification - Answer ocular lens x objective lens Ocular = 10X compound microscope - Answer A light microscope that has more than one lens designed with a compound lens system - means 2 lenses able to reveal a great amount of detail Gram staining - Answer A process by which components of bacterial cell walls are bound to Gram's stain. Depending on the amount of peptidoglycan in their cell walls, bacteria stain differently and are classified as Gram-negative or Gram-pos...

4 important facts about Antoni van Leeuwenhoek (Dutch) - Answer -First person to see protozoa and bacteria -Began making and using simple microscopes -Often made a new microscope for each specimen -Examined water and visualized tiny animals, fungi, algae, and single-celled protozoa; "animalcules 2 important facts about Carolus Linnaeus - Answer -developed taxonomic system for naming plants and animals and grouping similar organisms together -Leeuwenhoek's microorganisms grouped int...

What is a prion? and how are they different from other infectious agents? - Answer an infectious protein they do not have a nucleic acid What is Mycology the study of? - Answer The study of fungi and mold Define virus - Answer An acellular particle with a genetic core and protein coat that can invade cells and alter cellular function. cannot reproduce on itself What are the 5 stages of viral replication? - Answer 1. Attachment 2. Penetration 3. Replication and Synthe...

organic - Answer heterotrophs are? heterotroph - Answer •An organism that must obtain its carbon in organic form •Dependent on eating other life forms inorganic - Answer autotrophs are? autotroph - Answer •"Self-feeder" (photosynthesis or chemosynthesis) •Uses inorganic CO2 as its carbon source; builds organiccompounds from the CO2 phototroph - Answer an organism that gets its energy from sunlight chemotrophs - Answer Organisms that get energy from ch...

Which of the following is true? A. Metabolism only involves breaking down larger molecules. - Answer Amphibolic rxns can proceed toward anabolism or catabolism. Which of the following is associated with the greatest risks to human health? - Answer Ethylene oxide. The presence of mycolic acid in the cell wall characterizes? - Answer Myobacteria. Which of the following is a fungis? - Answer Saccharomyces. Which microbe is correctly paired with its BSL level? - Answer MR...

Voltage gated Calcium channels tend to be located where in the neuron? - soma - axon - axon terminal - Answer axon terminal When a cell depolarizes it becomes more... - Answer positive graded potential is initiated by a stimulus and results in a __________________ change in membrane potential. - small - large - no - Answer small During relative refractory period will an action potential be triggered by any stimulus? - Answer an action potential will be triggered by lar...

Taxonomy - Answer The field of biology that is involved in naming, describing, and classifying organisms, both extinct species and extant species International Code of Zoological Nomenclature (ICZN) - Answer The formal rules used by scientists in naming to promote stability and universality in the scientific names of animals and other organisms. Classification - Answer One branch of taxonomy where various things are identified and grouped together into groups. This orders and rank...

WHAT IS THE PURPOSE OF A SWAN NECKED FLASK? - Answer Pasteur's swan necked flask shows that they remained free of microbes in the absence of microorganisms, disproving the theory of spontaneous generation A SPECIFIC ________ CAUSES A SPECIFIC DISEASE - Answer microbe WHICH SCIENTIST PROMOTED HAND SANITIZER? - Answer Joseph Lister GRAM STAINING IS WHAT TYPE OF STAINING? - Answer differential staining WHAT ARE THE 5 I'S OF MICROBIOLOGY (IN ORDER) - Answer inoculation ...

DNA is replicated in the ___ Nucleus RNA is replicated in the ___ Cytoplasm What is the first step in viral replication? Penetration/adhesion (attaches to membrane using spikes) What is the second step in viral replication? Uncoating What is the third step in viral replication? Replication What is the fourth step in viral replication? Assembly

BIOS 242 Microbiology Midterm Exam Questions With Answers Updated 2024