Flashcards in Chapter 3 Deck (38):
Physicochemical features of environment like temp, pH, salinity. Conditions affect organisms and vise versa
Consumed by organisms
Highest performance=Reproduction, Middle= Individual Growth, Low=Individual Survival, Lowest=Death. might not be at peak performance bc competition of other animals might kill.
rely on external heat to determine pace of metabolism
regulate body temperature by producing heat within body
rate of fixation of carbon decreases with increasing radiation intensity
first production of 3 carbon atoms, wastes water and reaches max rate of photosynthesis too quickly
First production of 4 carbon sugar, more efficient with water and carbon, separate things spatially
Uses organic compound as food, unpacks and consumes the organic compounds formed by autotrophs. 1) Decomposers 2) Parasites 3) Predators 4) Grazers
most organisms are scared of high temps except thermophiles. ie. fungi, bacteria and archaea.
length of the period of daylight within a daily cycle. as photoperiod shortens (approaches winter),
conditions may trigger the same or more extreme condition. ex: Exposure to cold temp may cause inc rate of metabolism at the temp thus tolerate even colder temps. over one lifetime
thrive in environments that are highly acidic
Better than C4, doesn't waste water. Opens stomata at night. Cactus often use this, temporal separation
An enzyme that catalyzes reaction of RuBP with CO2 to form sugars with 3 carbons. Then calvin cycle
Resources for photosynthesis
Light, water, CO2, Nutrients
Second stage of dark reaction photosynthesis. After forming sugar with 3 C, calvin cycle forms sugar with 6 C (Glucose)
______ is used by plants to time dormancy and flowering.
A _________ is an organism that relies on external sources of heat to determine the pace of their metabolism.
Species of bacteria and archaea that can live at temperatures of 100 degrees Celsius are known as ________?
Temperature, humidity, amount of precipitation, and water pH are examples of __________.
Physiochemical features of the environment known as conditions
Organisms will consume _______ during the course of their growth and reproduction
Conditions are physiochemical features of the environment, such as:
Temperature, Humidity, Salinity
Organisms whose major resources are photosynthetic radiation, water, nutrients, and carbon dioxide are known as ________.
Which is NOT a type of heterotroph?
Bacteria that feed on hydrogen sulfide
Human that feeds on plant material
Bacteria that feeds on hydrogen sulfide. (bc heterotrophs feed on carbon compounds)
also known as Primary Producer, assemble CO2, H20, nutrients into complex molecules then cells then whole organisms. These packages are food sources for heterotrophs
T/F Plants face a trade-off between photosynthesis and water loss.
Which type of organism feeds on already dead material?
T/F C4 photosynthesis is an important photosynthetic pathway for plants in environments with consistently high precipitation.
If a plant is prevented from transpiring, what do you expect the outcome will be?
The plant will likely become overheated.
You learn that an organism is using abiotic environmental resources to assemble carbohydrates and proteins, and then forming them into tissues and organs. This organism is likely a:
What is the equation for photosynthesis?
6CO2 + 6H20 -> C6H12O6 + 6O2
decrease efficiency of photosynthesis, C4 evolved bc of this. result of too much O2 or too little CO2
waste product of herbivores
carbon rich bc eat plants which have high C:N ratios
waste prducts of animals
nitrogen rich bc eat animals/protein
things that eat algae
richer in nitrogen bc things that eat algae are on a more protein diet than herbivores