Photosynthesis and Cellular Respiration
What gas do plants take in for photosynthesis?
Carbon Dioxide
What does an arrow in a food chain represent?
Flow of energy
What is the role of a producer in an ecosystem?
to make its own food using sunlight
Which level of an energy pyramid has the most energy?
Producer level
What is symbiosis?
a close relationship between two species
What is the main product of photosynthesis that plants use for energy?
Glucose
In a food web, what happens if one species disappears?
It affects the entire ecosystem
Give an example of a decomposer
About how much energy is passed from one trophic level to the next?
10%
What type of symbiotic relationship benefits both species? What are the symbols?
Mutualism, ++
What organelle in plant cells carries out photosynthesis?
Chloroplast
What type of organism is always at the beginning of a food chain?
Producer
What type of consumer eats both plants and animals?
Omnivore
Why do energy pyramids get smaller at the top?
because energy is lost as heat at each level
Give an example of parasitism
flea/dog, tick/human, etc.
What is the main purpose of cellular respiration?
Release energy from food/ATP
Name a consumer that only eats plants
herbivore
What happens if decomposers are removed from an ecosystem?
dead matter would pile up and nutrients wouldn’t be recycled
What would happen if all the primary consumers in a pyramid disappeared?
What is secondary consumers would have no food and the ecosystem could collapse
What is the difference between commensalism and mutualism?
commensalism benefits one species while the other is unaffected, and mutualism benefits both
What is the equation for photosynthesis?
carbon dioxide + water + sunlight → glucose + oxygen
What is a more realistic model of feeding relationships: a food chain or a food web?
food web
What is the difference between a primary and a secondary consumer?
a primary consumer eats producers, while a secondary consumer eats other consumers
What type of organisms are found at the top of an energy pyramid?
apex predators
What type of symbiotic relationship harms one organism while benefiting the other? Symbols?