Week 2b Flashcards
ROOT words:
suffix -troph
-troph
“how food is obtained”
Now what does autotroph & heterotroph & chemotroph mean?
what is photosynthesis?
( HINT: look at the root words, photo- & -synthesis )
When autotrophs use sun energy to produce food.
Living organisms can produce 4 biomolecules (think nutrients), what are they?
DO you know which ones contain nitrogen?
carbohydrates.
lipids.
proteins (nitrogen)
nucleic acids (nitrogen)
What are the reactants in this pic? (HINT: they will do the “reacting”)
What is the energy source for the reactants?
What are the products produced by the reaction?
reactants: CO2 & water
energy: sunlight
products: glucose & O2
-vore means “to eat”.
Define and give an example of:
herbivore
carnivore
omnivore
detritivore
herbivore: plant eater
carnivore: meat eater
omnivore: all (plant & meat)
detritivore: “wears away” eats dead matter
What are decomposers, and how are they different that detritivores?
decomposers secrete enzymes to break dead matter,
down into molecular nutrients, then absorb it
detritivores INGEST dead matter
Matter, it’s what matters ;)
Matter is never destroyed, but reassembled as it passes through the food web/chain.
Describe how matter (a piece of dirt) works it’s way to an apex predator.
Soil has nutrients that an autotroph/tree will use to grow fruit.
Chipmunks eat fruits, and snakes eat chipmunk, and hawks (apex predator) eats snakes.
Name the elements involved in photosynthesis.
Name the molecules.
Elements: carbon, oxygen, hydrogen
Molecules: carbon dioxide, water, glucose, oxygen
What are the reactants and what are the products?
What are the 3 states of matter for water?
What factor determines which 3 forms water takes?
Solid, liquid, gas.
Temperature determines the state of matter for water.
Trophic levels are each step in a ladder of the food chain.
Where do autotrophs (the producers) fall?
Name a primary consumer and secondary consumer.
Autotrophs ate at the bottom of the food chain?
A primary consumer is just above the autotrophs, and eats the producers.
A secondary consumer eats a primary consumer.
What element is the “backbone” of life, one of the “building blocks” needed for life?
It is 1 the primary nutrient cycles. (along with water, nitrogen, phosphorus, etc. )
Carbon
And an example would be human and plant respiration.
What is the #1 gas in our atmosphere?
What is the #2 gas in our atmosphere?
1. Nitrogen
When plants put water into the atmosphere, it is called transpiration.
When water comes from a body of water (ex: a lake), it is called __________.
Evaporation (formed from water heating)
What is it called when water cools and comes back out of the atmosphere
(opposite of evaporation / transpiration)
Condensation.
When clouds “fill up”, and water falls back to Earth (in the form of rain, snow, or hail),
it is called precipitation.
What is the important job for nitrogen fixing bacteria?
They take nitrogen from the air and turn it into ammonia [NH3] or nitrATE [NO3]
that that plants can ATE
