MIBO 3500 Exam 2 UPDATED ACTUAL Questions And Correct Answers
Terms in this set (150)
organisms require these three things energy, electrons, and carbon
nutritional types of organisms based on energy source:
phototrophs, chemotrophs
based on electron source: lithotrophs, organotrophs
based on C source:
autotrophs, heterotrophs
(PCLOAH - please come lay on a hammock)
Sources LCIOCO (like come in or come out)
phototrophs obtain energy from light
chemotrophs obtain energy from oxidation of chemical compounds
lithotrophs obtain electrons from reduced inorganic substances
organotrophs obtain electrons from reduced organic compounds
autotrophs obtain C primarily from CO2
-must obtain energy from other sources
heterotrophs obtain C from organic compounds
what does photoorganoheterotrophy mean energy from sunlight, electrons from reduced organic compounds, carbon from
organic molecules
-light, organic e, organic C
organisms all generate 3 products (despite diversity of ATP, reducing power, prescursor metabolites (ARP)
source aqcuisition) -if don't have bac stressed and can die
ATP used to conserve energy from an energy source
reducing power molecules that serve as a ready supply of electrons for chemical reactions
prescursor metabolites provide C skeleton for biosynthesis of monomers
key microbial players in acne cutibacterium acnes and staphylococcus epidermis
-both chemoorganoheterotrophs (energy from organic chemicals, electrons from
organic e- donor, organic C)
anatomy of the skin fat, dermis, epidermis
, fat adipocytes provide cushion, insulation
dermis fibroblasts provide structural support, immune cells protect, sebaceous glands
and ducts lubricate
epidermis keratinocytes provide physical protection
immune cells in dermis -macrophages and neutrophils
-regulatory t cells
-cytotoxic t cells
-resident t cells: surveillance and memory ???? need to know???
macrophages and neutrophils WBCs that circulate and look for pathogens to destroy
C. acnes is ____ and S. epidermidis is ____ (oxygen aerotolerant, facultative anaerobe
relationship)
C. acnes and S. epidermidis are both part of the ____ normal flora
S. epidermidis is found in ____ numbers than C. acnes on higher
typical skin overall
sebaceous areas have more ____ C. acnes
if C. acnes overgrows leads to immune response --> signs/symptoms of acne (ie. inflammation, pain, redness,
pus, etc.)
regulatory t cells WBCs that maintain balance
-may turn down immune responses
-in infants normal flora bac of skin recruit them they function to establish immune
tolerance to normal flora (exact mechanism unclear)
cytotoxic t cells WBCs that kill infected human cells
-normal flora bac of skin recruit them to areas to look for sick human cells and
destroy them
EEC normal flora: S. epidermidis C: organic compounds on the skin (ie. amino acids)
-Energy: acquired from catabolism of those organic compounds
-Electrons: acquired from catabolism of those organic compounds
EEC normal flora: C. acnes C: organic compounds on the skin (ie. lipids)
-Energy: acquired from catabolism of those organic compounds
-Electrons: acquired from catabolism of those organic compounds
in acne inflammation, C. acnes starts to overgrow and change behavior
-produces lipases, proteases, hyaluronate lyases, and CAMP
(LPHC - little puppies hate cold)
Terms in this set (150)
organisms require these three things energy, electrons, and carbon
nutritional types of organisms based on energy source:
phototrophs, chemotrophs
based on electron source: lithotrophs, organotrophs
based on C source:
autotrophs, heterotrophs
(PCLOAH - please come lay on a hammock)
Sources LCIOCO (like come in or come out)
phototrophs obtain energy from light
chemotrophs obtain energy from oxidation of chemical compounds
lithotrophs obtain electrons from reduced inorganic substances
organotrophs obtain electrons from reduced organic compounds
autotrophs obtain C primarily from CO2
-must obtain energy from other sources
heterotrophs obtain C from organic compounds
what does photoorganoheterotrophy mean energy from sunlight, electrons from reduced organic compounds, carbon from
organic molecules
-light, organic e, organic C
organisms all generate 3 products (despite diversity of ATP, reducing power, prescursor metabolites (ARP)
source aqcuisition) -if don't have bac stressed and can die
ATP used to conserve energy from an energy source
reducing power molecules that serve as a ready supply of electrons for chemical reactions
prescursor metabolites provide C skeleton for biosynthesis of monomers
key microbial players in acne cutibacterium acnes and staphylococcus epidermis
-both chemoorganoheterotrophs (energy from organic chemicals, electrons from
organic e- donor, organic C)
anatomy of the skin fat, dermis, epidermis
, fat adipocytes provide cushion, insulation
dermis fibroblasts provide structural support, immune cells protect, sebaceous glands
and ducts lubricate
epidermis keratinocytes provide physical protection
immune cells in dermis -macrophages and neutrophils
-regulatory t cells
-cytotoxic t cells
-resident t cells: surveillance and memory ???? need to know???
macrophages and neutrophils WBCs that circulate and look for pathogens to destroy
C. acnes is ____ and S. epidermidis is ____ (oxygen aerotolerant, facultative anaerobe
relationship)
C. acnes and S. epidermidis are both part of the ____ normal flora
S. epidermidis is found in ____ numbers than C. acnes on higher
typical skin overall
sebaceous areas have more ____ C. acnes
if C. acnes overgrows leads to immune response --> signs/symptoms of acne (ie. inflammation, pain, redness,
pus, etc.)
regulatory t cells WBCs that maintain balance
-may turn down immune responses
-in infants normal flora bac of skin recruit them they function to establish immune
tolerance to normal flora (exact mechanism unclear)
cytotoxic t cells WBCs that kill infected human cells
-normal flora bac of skin recruit them to areas to look for sick human cells and
destroy them
EEC normal flora: S. epidermidis C: organic compounds on the skin (ie. amino acids)
-Energy: acquired from catabolism of those organic compounds
-Electrons: acquired from catabolism of those organic compounds
EEC normal flora: C. acnes C: organic compounds on the skin (ie. lipids)
-Energy: acquired from catabolism of those organic compounds
-Electrons: acquired from catabolism of those organic compounds
in acne inflammation, C. acnes starts to overgrow and change behavior
-produces lipases, proteases, hyaluronate lyases, and CAMP
(LPHC - little puppies hate cold)
