BIOS 242 Exam 2 New Exam With Accurate Answers (A+)
Organic Nutrient - ANSWER An organism that contains carbon and hydrogen
Inorganic Nutrient - ANSWER An organism that does not contan carbon and hydrogen
Phototroph - ANSWER An organism that gains energy from light through photosynthesis
Heterotroph - ANSWER An organism that must obtain carbon in an organic form - they
are dependent on other life forms
Chemotroph - ANSWER An organism that gains energy from chemical compounds - this
means they eat things. Harvesting energy from the things they eat.
Autotroph - ANSWER An organism that gets its source of carbon from carbon dioxide an
iorganic carbon source - referred to as the "self feeder"; They are NOT nutritionally
dependent on other living things
Photoautotroph - ANSWER An organism that gets its energy from light rays and its
carbon source from CO2 in the air
Examples of a photoautotroph? - ANSWER Photosynthetic organisms - algae, plants,
Cyanobacteria
What type of organism is the base of most food webs? - ANSWER Photoautotrophs
Chemoautotroph - ANSWER An organism that gets its energy by consuming things and
gets its carbon source from inorganic compounds
, Examples of a Chemoautotroph - ANSWER Only certain bacteria/archaea -
methanogens, deep-sea vent bacteria
Lithoautotroph - ANSWER gets energy from inorganic materials - can actually digest
rocks
Chemoheterotrophs - ANSWER derive energy from chemical energy in the food
consumed; carbon source also comes from the food consumed
What are humans classified as? - ANSWER Chemoheterotrophs
Aerobic Respiration - ANSWER the major energy-yielding pathway in which the final
electron acceptor in the electron transport chain is oxygen (O2)
Osmosis - ANSWER movement of water across a permeable membrane
Simple Diffusion - ANSWER The movement of molecules from a higher concontration to
a lower concentration
Facilitated Diffusion - ANSWER a molecule binds to a specific carrier protein that
changes the shape of the cell and carries the molecule across the membrane
Active Transport - ANSWER uses ATP to transport things into the cell against the
concentration gradient
Group Translocation - ANSWER form of active transport that couples a transport of a
nutrient with its conversion to another form
Permeases Pumps: - these structures pump things in and out of the cell - most of the
time its waste going out of the cell
Organic Nutrient - ANSWER An organism that contains carbon and hydrogen
Inorganic Nutrient - ANSWER An organism that does not contan carbon and hydrogen
Phototroph - ANSWER An organism that gains energy from light through photosynthesis
Heterotroph - ANSWER An organism that must obtain carbon in an organic form - they
are dependent on other life forms
Chemotroph - ANSWER An organism that gains energy from chemical compounds - this
means they eat things. Harvesting energy from the things they eat.
Autotroph - ANSWER An organism that gets its source of carbon from carbon dioxide an
iorganic carbon source - referred to as the "self feeder"; They are NOT nutritionally
dependent on other living things
Photoautotroph - ANSWER An organism that gets its energy from light rays and its
carbon source from CO2 in the air
Examples of a photoautotroph? - ANSWER Photosynthetic organisms - algae, plants,
Cyanobacteria
What type of organism is the base of most food webs? - ANSWER Photoautotrophs
Chemoautotroph - ANSWER An organism that gets its energy by consuming things and
gets its carbon source from inorganic compounds
, Examples of a Chemoautotroph - ANSWER Only certain bacteria/archaea -
methanogens, deep-sea vent bacteria
Lithoautotroph - ANSWER gets energy from inorganic materials - can actually digest
rocks
Chemoheterotrophs - ANSWER derive energy from chemical energy in the food
consumed; carbon source also comes from the food consumed
What are humans classified as? - ANSWER Chemoheterotrophs
Aerobic Respiration - ANSWER the major energy-yielding pathway in which the final
electron acceptor in the electron transport chain is oxygen (O2)
Osmosis - ANSWER movement of water across a permeable membrane
Simple Diffusion - ANSWER The movement of molecules from a higher concontration to
a lower concentration
Facilitated Diffusion - ANSWER a molecule binds to a specific carrier protein that
changes the shape of the cell and carries the molecule across the membrane
Active Transport - ANSWER uses ATP to transport things into the cell against the
concentration gradient
Group Translocation - ANSWER form of active transport that couples a transport of a
nutrient with its conversion to another form
Permeases Pumps: - these structures pump things in and out of the cell - most of the
time its waste going out of the cell
