Autotrophy and energy flow Flashcards
(25 cards)
From where organism get their energy
environment or eat other organism
what are the two types of organisms?
Autotroph and heterotrop
What mainly describe autotroph
Make their own food from inorganic material, are producers
what mainly describe heterotroph
feed on other organism
what are the 4 types of heterotroph
herbivore, carnivore, omnivores, saprobes
true of false, first life develop under anaerobic conditions
true
How where the first cells
chemoorganotrophic
from where the first cell got their energy
complex molecules formed in ocean
what are the 3 domains of life
Bacteria, Archaea, Eukaryotes
what is the difference between bacteria and archaea
bacteria have chlorophyll
what is the oldest oldest and most abundant organism on earth
prokaryotes
How in DNA in the prokaryotes
free in the cytoplasm
Does archaea need oxygen to survive
no they are mostly anaerobic
what is a methanogen
archaea, oldest organism on earth
What was in atmosphere when methanogen appeared
methane and ammonia
what is the habitat of methanogen
marsh, pond, intestinal tracts
where thermophiles are found
hot spring
under which temperature thermophiles dies
50 degree
where halophiles are found
high concentration of water
what are the specialized mechanism of halophiles
exclude water from cells
to what can we compare the size of a cyanobacteria
chloroplast
in which type of environment cyanobacteria are found
everywhere
why are they not considered eukaryotes
no defined nucleus
what is the function of cyanobacteria
convert carbon into calcium carbonate. deposits as limestone
