BIOS 242 EXAM 2 QUESTIONS 7
VERIFIED SOLUTIONS(RATED A+)
organic - ANSWERheterotrophs are?
heterotroph - ANSWER•An organism that must obtain its carbon in organic form
•Dependent on eating other life forms
inorganic - ANSWERautotrophs are?
autotroph - ANSWER•"Self-feeder" (photosynthesis or chemosynthesis)
•Uses inorganic CO2 as its carbon source; builds organiccompounds from the CO2
phototroph - ANSWERan organism that gets its energy from sunlight
chemotrophs - ANSWEROrganisms that get energy from chemical compounds
Photoautotrophs - ANSWERCapture energy from light and transform it into chemical
energy that can be used for cell metabolism
Chemoautotroph - ANSWER•Use inorganic or organic compounds for energy and
inorganic compounds as a carbon source
saprobes - ANSWERorganisms that obtain food from decaying organic matter
Parasites - ANSWERAn organism that lives in or on another organism, deriving
nourishment at the expense of its host, usually without killing it
Macronutrients - ANSWERnutrients that provide calories and energy, they are required
in large amounts. Carbs, fats and proteins
Micronutrients - ANSWERvitamins and minerals. vital to healthy development and
disease prevention
vitamins - ANSWERcoenzymes and cofactors for optimal enzyme function
passive transport - ANSWERthe movement of substances across a cell membrane
without the use of energy by the cell
osmosis - ANSWERDiffusion of water through a selectively permeable membrane
facilated diffusion - ANSWERMovement of specific molecules across cell membranes
through protein channels
, active transport - ANSWEREnergy-requiring process that moves material across a cell
membrane against a concentration difference
isotonic solution - ANSWERA solution in which the concentration of solutes is
essentially equal to that of the cell
hypertonic solution - ANSWERA solution in which the concentration of solutes is greater
than that of the cell
hypotonic solution - ANSWERA solution in which the concentration of solutes is less
than that of the cell
cardinal temperatures - ANSWERthe minimum, optimum, and maximum temperatures
at which an organism grows
max growth temp - ANSWERhighest temp at which growth is possible
mini growth temp - ANSWERlowest temp at which growth is possible
psychrophiles - ANSWERCold-loving Microbes. 0-20 degrees C. optimum growth temp
is 15 degrees. Found in arctic, antarctic, and ocean depths
thermophiles - ANSWERHeat-loving microbes.
general growth range 45 c to 80 c
hyperthermophiles - ANSWERArchaea growing about 80 degrees celcius and some
above 100 degrees celcius
mesophiles - ANSWERthose growing best between 20 degrees and 40 degrees celcius;
the human pathogens are in this group
-majority of medically significant organisms
acidophiles - ANSWERgrow in acidic environments
Alkalinophiles - ANSWERgrow at extreme alkaline pH
barophiles - ANSWERcan survive under extreme pressure and will rupture if exposed to
normal atmospheric pressure
Halophiles - ANSWER"salt-loving" archaea that live in environments that have very high
salt concentrations
aerobes - ANSWERBacteria that require oxygen to grow
anaerobes - ANSWERBacteria that grow in the absence of oxygen and are destroyed
by oxygen
VERIFIED SOLUTIONS(RATED A+)
organic - ANSWERheterotrophs are?
heterotroph - ANSWER•An organism that must obtain its carbon in organic form
•Dependent on eating other life forms
inorganic - ANSWERautotrophs are?
autotroph - ANSWER•"Self-feeder" (photosynthesis or chemosynthesis)
•Uses inorganic CO2 as its carbon source; builds organiccompounds from the CO2
phototroph - ANSWERan organism that gets its energy from sunlight
chemotrophs - ANSWEROrganisms that get energy from chemical compounds
Photoautotrophs - ANSWERCapture energy from light and transform it into chemical
energy that can be used for cell metabolism
Chemoautotroph - ANSWER•Use inorganic or organic compounds for energy and
inorganic compounds as a carbon source
saprobes - ANSWERorganisms that obtain food from decaying organic matter
Parasites - ANSWERAn organism that lives in or on another organism, deriving
nourishment at the expense of its host, usually without killing it
Macronutrients - ANSWERnutrients that provide calories and energy, they are required
in large amounts. Carbs, fats and proteins
Micronutrients - ANSWERvitamins and minerals. vital to healthy development and
disease prevention
vitamins - ANSWERcoenzymes and cofactors for optimal enzyme function
passive transport - ANSWERthe movement of substances across a cell membrane
without the use of energy by the cell
osmosis - ANSWERDiffusion of water through a selectively permeable membrane
facilated diffusion - ANSWERMovement of specific molecules across cell membranes
through protein channels
, active transport - ANSWEREnergy-requiring process that moves material across a cell
membrane against a concentration difference
isotonic solution - ANSWERA solution in which the concentration of solutes is
essentially equal to that of the cell
hypertonic solution - ANSWERA solution in which the concentration of solutes is greater
than that of the cell
hypotonic solution - ANSWERA solution in which the concentration of solutes is less
than that of the cell
cardinal temperatures - ANSWERthe minimum, optimum, and maximum temperatures
at which an organism grows
max growth temp - ANSWERhighest temp at which growth is possible
mini growth temp - ANSWERlowest temp at which growth is possible
psychrophiles - ANSWERCold-loving Microbes. 0-20 degrees C. optimum growth temp
is 15 degrees. Found in arctic, antarctic, and ocean depths
thermophiles - ANSWERHeat-loving microbes.
general growth range 45 c to 80 c
hyperthermophiles - ANSWERArchaea growing about 80 degrees celcius and some
above 100 degrees celcius
mesophiles - ANSWERthose growing best between 20 degrees and 40 degrees celcius;
the human pathogens are in this group
-majority of medically significant organisms
acidophiles - ANSWERgrow in acidic environments
Alkalinophiles - ANSWERgrow at extreme alkaline pH
barophiles - ANSWERcan survive under extreme pressure and will rupture if exposed to
normal atmospheric pressure
Halophiles - ANSWER"salt-loving" archaea that live in environments that have very high
salt concentrations
aerobes - ANSWERBacteria that require oxygen to grow
anaerobes - ANSWERBacteria that grow in the absence of oxygen and are destroyed
by oxygen
