1. SNC1D: BIOLOGY UNIT SUSTAINABLE ECOSYSTEMS
Lesson:
THE BIOTIC COMPONENTS OF ECOSYSTEMS

2. Microbe: Another word for microorganism.
Summary of Last Lesson: Ecosystems are groupings of ___________, ___________,and ___________ interacting with _____________and with their ___________________. All these factors (_________ and _________) play important roles in the survival and sustainability of the ecosystem.
Sustainability: the property of biological systems to remain diverse and productive indefinitely.
Microbe: Another word for microorganism.

3. The plants (and some microbes), called _________________, are able to produce their own food from the abiotic environment (water, CO2, and sunlight). Since they can “feed” themselves, they are referred to as _________________. This process of making their own Food is referred to as

4. Carbon dioxide + water + light → Glucose (sugar) + oxygen
Photosynthesis takes place in a series of _________________that take place inside the ________________. It can be summarized into the following equation:
REACTANTS
PRODUCTS
Carbon dioxide + water + light → Glucose (sugar) + oxygen
CO H2O + light → C6H12O O2

5. The plants then store this food
(sugar) in the form of _________,
resulting in ______ of the plant, or
they use it themselves as a source of
________ for their own cells.

6. The process of breaking apart glucose to release energy for cells is called __________________________. Again, this involves a long series of ______________________but can be summarized into the following equation:

7. Both animals AND plants use _________________________
REACTANTS
PRODUCTS
Glucose + oxygen → Carbon dioxide + water + energy
C6H12O O → CO H2O + energy
Both animals AND plants use
_________________________
to supply usable energy
for their cells.

8. The animals and microbes, called
_______________________,
rely on plants and other animals for their food
energy.
Because consumers require other organisms as
their food source, they are referred to as
__________________ (eat others).

9. Heterotrophs that eat only plants are called _______________
Heterotrophs that eat only plants are called _______________. Heterotrophs that eat other consumers are called ____________. Those that eat both plants and animals are called _______________. The consumers responsible for breaking down dead material and waste products are called ______________________.

10. Since all ___________ ultimately rely on plants,
plants are an essential part of all ecosystems.
As important as they are, it is important to
realize that the plants could not survive without
_______________...
How so?
When consumers die, they _____________,
and help add ____________ to the soil.
Provide carbon dioxide for ______________
Aid in seed dispersion for plants
And many more!

11. All these components work together
to maintain and sustain a healthy
ecosystem.
Almost all ecosystems have a diverse
variety of plants, animals, and
microbes interacting with each other
and their environment.

12. The greater the number of plants, animals, and
microbes, the greater the _______________.
If biodiversity is reduced, this may impact and
damage the ecosystem.
Eg. Cutting and burning the rainforests.
Eg. Over fishing, hunting, etc