Biotic components

Biotic components

Es Producers, consumers,

decomposers

Ea Plants, animals, bacteria/fungi

Ea Biotic interactions with biotic components include predation, competition, symbiosis, parasitism, commensalism etc.

Producers=autotroph

Source of all food

E Photosynthesis

Plants

Biotic components

Es Producers, consumers,

decomposers

Ea Plants, animals, bacteria/fungi

Ea Biotic interactions with biotic components include predation, competition, symbiosis, parasitism, commensalism etc.

Producers=autotroph

Source of all food

E Photosynthesis

Plants

Consumers=heterotroph

E Aerobic respiration

E Anaerobic respiration

• Methane, H,S

Decomposers

Matter recyclers...

i Release organic compounds into soil and water where they can be used by producers

Autotrophs

feeders") = organisms that capture solar energy for photosynthesis to produce sugars i Green Plants

E Cyanobacteria

E Algae

• Chemosynthetic bacteria

use the geothermal energy in hot springs or deep-sea vents to produce their food

Light Reaction

1. use light, produced ATP & NADPH, release of Oxygen gas; happens in grana

Dark Reactions

1. (Calvin Cycle- use ATP and NADPH plus the presence of CO2 to produce sugar; happens in stroma

Primary consumers

second trophic level

# Organisms that consume producers

E Herbivores consume plants i Deer, grasshoppers

Secondary consumers

third trophic

level

a Organisms that prey on primary consumers

• Carnivores consume meat a Wolves, rodents

Tertiary Consumers

fourth trophic level

E Predators at the highest trophic level

E Consume secondary consumers

l Are also carnivores a Hawks, owls

Omnivores

consumers that eat both plants and animals

cellular respiration

Transformation of chemical energy (organic compound) in food into chemical energy cells can use: ATP

These reactions proceed the same way in plants and animals. Process is called

Detritivores

scavenge waste products or

dead bodies a Millipedes

Decomposers

break down leaf litter and other non-living material

E Fungi, bacteria

i Enhance topsoil and recycle nutrients