Halophiles - Study guides, Class notes & Summaries

Cell - smallest, most basic unit life unicellular - one cell multicellular - many cells emergent property - qualities appear each level organization List the organization of living things. - Atom molecule cell tissue organs organ system organism List the 5 characteristics of living things. - organized acquire materials & energy respond to stimuli reproduce & develop adapt natural selection - organisms become modified evolution - change over time become suited environmentList the...

Exam 1: BIOS 242 / BIOS242 Review (Latest 2024/ 2025 Update) Fundamentals of Microbiology with Lab| Questions and Verified Answers| 100% Correct| Grade A- Chamberlain Q: what are characteristics of a hyperthermophile? Answer: loves high temperature Q: where are hyperthermophiles found? Answer: volcano Q: what are characteristics of a psychrophile? Answer: survives in cold temperatures Q: where are psychrophiles found? Answer: ice caps Q: what are char...

What is microbial growth? - increase in the number of cells What are the two general requirements for microbial growth? - physical: temperature, pH, osmotic pressure chemical: types of nutrients, growth factors A bacterium has just encountered a new environment. What are its three basic choices with respect to growth in this new environment? - Adapt- allows growth to continue Tolerate- survive without growth DIE What are a bacterium's cardinal temperatures? Do all bacteria have the same...

Anton van Leeuwenhok - Dutch merchant & scientist who observed live microorganisms (bacteria & protozoa) through his improved compound microscope Algae - Photosynthetic eukaryotes; can reproduce sexually or asexually; microbiologist interested in unicellular; cell wall composed of cellulose; Benefits of Microogranisms - basis of food chains in marine & freshwater environments; decomposers; important role in photosynthesis; digestion in human intestine; synthesis of Vitamin B and Vitamin K;...

REHS - microbiologyAcid Fast stain is for what type of bacteria - correct answer Mycobacterium (tuberculosis and leprosy) What type of bacteria forms spores? - correct answer gram +, bacillus and clostridium obligate aerobes - correct answer organism that requires a constant supply of oxygen in order to live obligate anaerobes - correct answer poisoned by oxygen facultative anaerobes - correct answer prefer oxygen, but can survive without it Psychrophiles - correct answer -2...

EXAM 1 BIOS 242- CHAMBERLAIN 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 what is the fifth step in viral replication? maturation what is the sixth step in viral replication? release ...

What bacteria inhabit extreme environments? correct answers often archaebacteria, or "ancient" bacteria How does archaebacteria differ from eubacteria or "true" bacteria? correct answers they differ in cell wall and cell membrane composition, ribosome composition and shape, tRNA structure and RNA polymerase sequences What are thermophiles? correct answers bacteria that inhabit environments with elevated temperatures What are hyper or super thermophiles? correct answers bacteria that...

Obligate halophiles - High osmotic pressure aka lots of salt like the great salt lake Facultative halophiles - Type that causes acne can be in salty also known as osmolaric but not nessesary Neutrophiles - Most bacteria Protozoa and pathogens like neutral ph rang 6.5-7.5 Acidophiles - Really acidic as low as 0 pH Alkalineophiles - Grow best in basic range up to 11.5 ex cholera Thermophiles - Higher temperatures above 45C ex hot springs Hyperthermophiles - Hottest 80C and above Mesophiles...

KSU Bio 198 Exam 5 Questions and Answers Already Passed _____ is the main energy currency of the cell. ATP _______ reactions release energy. Exergonic A cell that is placed in an isotonic solution will: A. shrink in size B. increase in size C. neither gain water or lose water D. gain water C The movement of molecules across a membrane that requires the useof carrier molecules and the expenditure of energy is called ______________. active transport Energy cannot be created ...

3 parts of the bacterial cell cycle correct answers Growth, chromosome replication, cytokinesis direction of replication correct answers clockwise Septation correct answers formation of cross walls between daughter cells What is the Z ring composed of? correct answers FtsZ MinCDE system correct answers locates to the poles and prevents Z ring assembly nucleoid occlusion correct answers a mechanism used by many bacteria to prevent premature formation of a septum during binary fissi...