Glycocalyx Study guides, Class notes & Summaries

Edward Jenner - Developed small pox immunization using cowpox agent Paul Ehrlich - sought a " magic bullet" to destroy pathogens Alexander Fleming - discovered penicillin Joseph Lister - Pioneered aseptic surgery John Snow - father of epidemiology (cholera in London) Ignaz Semmelweis - Pioneered asepsis by discovering that hand washing prevented streptococcal infections in obstetric patients Robert Koch - Pioneered the cultivation of bacteria on solid media Louis Pasteur -...

Bio 227 Exam 2 with Complete Solutions ain integrity and shape of a cell n nutrients and form chemical building blocks 3. dispose of wastes Answer-What are the 3 cell functions? cholesterol Answer-strengthens the cell membrane and stabilizes it at temperature extremes glycocalyx Answer-a "coating of sugar" on the cells surfaces passive transport Answer-kinetic energy inherent within a a substance as it moves down its concentration gradient (diffusion & Osmosis)

What are the characteristic functions of the cell? correct answer: Cell metabolism and energy use, Synthesis of molecules, Communication, and Reproduction and inheritance What are the basic structures of a cell? correct answer: Plasma membrane, Cytoplasm containing organelles, and the Nucleus Intracellular correct answer: Inside the cell Extracellular correct answer: Outside the cell Membrane Potential correct answer: An electrical charge difference across the plasma membrane ...

BIO 202 Exam 1 Questions With Correct Answers Updated 2024/2025 Graded A+. What are the properties of life? - correct answer *Cells and organization *Energy use and metabolism *Environmental response *Regulation and homeostasis *Growth and development *Reproduction *Biological evolution When was earth formed? - correct answer 4.55 billion years ago When did life on earth first appear? - correct answer 3.5 billion years ago What are the evolutionary mechanisms? - correct answer *Nonrando...

Which of the following describe the similarities of microbial growth b/w solid and liquid media? - correct answer -BOTH involve a lag phase -cells compete for nutrients An illness outbreak occurs in New York City birds in the late 1990s. After a lengthy scientific investigation, the Centers for Disease Control (CDC) determine that the agent causing the birds to die is the West Nile virus. Outbreaks of this illness have been observed in several other countries in Asia and the Middle East acro...

true motility Correct Answer-directed motion of bacteria (energy expenditure by the cell) brownian movement Correct Answer-random back-and-forth jiggling motion due to collisions of water molecules with the cells (cells don't go anywhere)... results from kinetic energy of molecules around the cell flagella Correct Answer-long, whip-like structures that extend beyond the surface of the cell and glycocalyx and propel the cell through its environment. Composed of flagellin serovars Correc...

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 ...

Plasma membrane Ans: A selectively-permeable phospholipid bilayer forming the boundary of the cells cystoplasm Ans: cellular material between the plasma membrane and the nucleus consists of the cytosol and organelles nucleus Ans: Control center of the cell, houses DNA Endoplasmic Reticulum Ans: a network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surface (smooth endoplasmic reticulum) or studded with ribosomes (rough endoplasmic reticulum) i...

_______ are the prominent macromolecules in cells - Proteins ________ _________ - compounds containing both carbon and hydrogen atoms - Organic chemicals __________ molecules (e.g. soap, _phospholipids_) have both hydrophobic and hydrophilic properties. - Amphipathic A ________ fatty acid forms a triglyceride whose straight chains pack together to form solid fats. - Saturated A compound microscope used the total magnification of the ______ lens and the _____ lens.w - Ocular, objective A...

cell is the - Answer-structural and functional unit of life Unicellular organisms are capable of - Answer-1. Independent existence 2. Performing the essential functions of life Who came up with the cell theory - Answer-Schleiden and Schwann What is the cell theory - Answer-1. All living things are made up of cells 2. new cells are produced from existing cells nucleus contains ___, which contains ___ - Answer-chromosomes, genetic material Who discovered dead cells - Answer-Robert Hooke Wh...