Energy, Producers, and
Consumers 1
Consumers 1
An organism that is able to capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; also called a producer
What is an autotroph?
An organism that obtains food by consuming other living things; also called a consumer
What is a heterotroph?
A series of organisms in which energy is transferred from one organism to another.
What is a food chain?
A network of feeding interactions, through which both energy and matter move.
What is a food web?
A chemical substance that an organism needs to sustain life
The process used by plants and other autotrophs to capture light energy and use it to power chemical reactions that convert carbon dioxide and water into oxygen and energy-rich carbohydrates such as sugars and starches
What is Photosynthesis?
The process in which chemical energy is used to produce carbohydrates.
What is Chemosynthesis?
Each step in a food chain or food web
The total mass of living tissue within a trophic level
What is biomass?
The process of converting nitrogen gas into nitrogen compounds that plants can absorb and use.
What is nitrogen fixation?
Animals that eat both plants and other animals.
What are Omnivores?
Animals that consume the carcasses of other animals that have been killed by other predators or have died of other causes
What are Scavengers?
About ____% of energy available travels up to the next trophic level.
10%
What consumer type acts as Earth's recycling center?
Decomposers
If there is enough water and sunlight what would cause plants or crops to not grow?
If there is nutrient limitation in the soil.
If multicellular organisms cannot break down and digest leaves, how can they get energy from eating them?
They cultivate various microorganisms in their gut that do the work for them.
How is there an abundance of life around hydrothermal vents at the bottom of the ocean where no light can reach?
The chemicals and heat from hydrothermal vents provides energy for chemosynthesis to occur.
How can removing a small fish like the delta smelt potentially affect and entire ecosystem.
When you remove something from the food web the flow of energy is disrupted which can be a problem.
How can baleen whales like the humpback get so large when they feed on such small prey like krill?
The biomass of what they feed on is so great. Their prey is small but their overall biomass is very large.
How have humans disrupted the carbon cycle?
When humans burn coal, oil, natural gas, or even forests, we return carbon stored over millions of years to the atmosphere in a very short time.
Balance the following photosynthesis reaction:
___CO2 + ___H2O + Sunlight --> 2 C6H12O6 + ___O2
12 CO2 + 12 H2O + Sunlight --> 2 C6H12O6 + 12 O2
What are the 6 main consumer types?
(If nobody gets them all, team with most correct will get the points)
Carnivores, Herbivores, Omnivores, Scavengers, Decomposers, Detritivores
Imagine you have a 3 step food chain (4 levels). If you have 100% of the energy available at the first level, how much of that energy will make it to the top level?
0.1%
Draw a 5 level food chain.
Answers will vary...
Example: Algae--> Shrimp--> Fish--> Bird --> Alligator
What are the three phases in the water cycle?
Precipitation, Evaporation, Condensation, Precipitation, Evaporation, Condensation, Precipitation, Evaporation, Condensation, Precipitation, Evaporation, Condensation, Precipitation, Evaporation, Condensation, Precipitation, Evaporation, Condensation, Precipitation, Evaporation, Condensation,