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1) AUTOTROPHIC NUTRITION-

Organisms that perform autotrophic nutrition are commonly referred to as:

a) ________________________________________________________ or

b) ________________________________________________________ What makes autotrophic nutrition different from heterotrophic nutrition? Autotrophs/producers have the ability to _____________________ and store solar (light) energy from the sun in the form of energy rich compounds. In other words, autotrophs _____________________________________________ nutrients from __________________________ substances in their environment. Autotrophs have the ability to use an inorganic atmospheric gas (CO2) to produce organic nutrients, such as carbohydrates and proteins. Examples of producers performing autotrophic nutrition are: -An __________________ tree making its own food… -A _______________ plant using CO2 and ______ to ______________ C6H12O6. _________, an __________________ plant, using the__________________ CO2 in a lake to produce food for itself. -A corn plant growing and using _______________energy and CO2 to produce its own food. When Producers perform autotrophic nutrition, they ___________________ _________________________ CO2, Because they use the CO2 as a ____________________________ to synthesize GLUCOSE!

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2) ____________________________ NUTRITION- Organisms that perform heterotrophic nutrition are commonly referred to as: _______________________________________________________ or ____________________________________________________ A heterotroph OBTAINS nutrients from ones environment……..they consume _________________________ organic molecules!!

• There are many different __________________________ of heterotrophs.

Most heterotrophs perform the following 3 processes a) INGESTION- _________________________________________________ b) DIGESTION- organic compounds such as proteins and starches are too ___________________ to pass through most cells, therefore digestion ___________________________________ these organic molecules so they can ___________________ cells and organelles. c) ELIMINATION or EGESTION- ___________________________________

Examples and/or types of Heterotrophs: a) Rare, but some _________________________ are considered heterotrophic because they consume organic molecules by stealing them from a HOST (dodder, which is a creeping vine is an example) b) ____________________________________= obtaining nutrients from its environment, such as digesting a dead log c) _______________________________changing organic material into simple nutrients (decomposing) d) A ____________________INGESTS a daphnia, then DIGESTS it….and later EGESTS some materials….All of these events are closely associated with the life process known as ___________________________________________nutrition. e) ______________________________________- Amoebas and white blood cells perform a type of INGESTION known as phagocytosis. Food is digested INTRACELLULAR! f) A _____________________________ tapeworm feeding in the body of a dog.

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!An important characteristic to observe when classifying organisms is whether the organism is a producer or consumer. Living things are classified as producers or consumers according to: _____________________________________________________________. -Besides the obvious difference between producers & consumers…there are also many different types of Consumers who ________________________ their food from different sources in different ways!

Some different types of consumers/heterotrophs are:

Type of consumer Definition Examples 1)

2)

3)

4)

5)

Name ___________________________________ Date _______ NUTRITION/ECOLOGY **Now APPLY your understanding of the definitions by labeling each of the following organisms as either an autotroph or a heterotroph.

**Briefly define the words below: (HINT: They are synonyms for autotroph & heterotroph, so you can refer back to page 1) Producer- ____________________________________________________ Consumer- ____________________________________________________ **Next, APPLY your understanding of the terms producer/consumer by labeling each of the following organisms as either a producer or a consumer.

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Name ________________________ # ___ Core-Curriculum…NUTRITIONAL RELATIONSHIPS

host , autotrophic , compete , nonliving, Relationships, consumers, interact, positive, predator/prey,

environments, interdependence The components of living systems, from a single cell to an ecosystem, ____________________to maintain balance. Food chains and food webs identify the relationships among producers, ______________________, and decomposers carrying out either __________________________________or heterotrophic nutrition. ***__________________________________ between organisms may be negative, neutral, or__________________________. Some organisms may interact with one another in several ways. They may be in a producer/consumer, ______________________________________, or parasite/___________________ relationship; or one organism may cause disease in, scavenge, or decompose another. -An ecosystem is shaped by the ________________________environment as well as its interacting species. -The world contains a wide diversity of physical conditions, which creates a variety of_______________________________. -In all environments, organisms ___________________________for vital resources.. The __________________________________________of organisms in an established ecosystem often results in stability over hundreds and thousands of years. For example, as one population increases, it is held in check by one or more environmental factors or another species.

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assemble , bonds, ‘stored in ATP’ , inorganic , energy , oxygen , released , chloroplasts ,

mitochondria , sun **The energy for life comes primarily from the_____________. *Photosynthesis provides a vital connection between the Sun and the ____________________needs of living systems. -Plant cells and some one-celled organisms contain ___________________________________ the site of photosynthesis. The process of photosynthesis uses solar energy to combine the ________________________molecules carbon- dioxide and water into energy-rich organic compounds (glucose) and release ___________________to the environment. -In all organisms, organic compounds can be used to ___________________other molecules such as proteins, DNA, starch, and fats. The chemical energy stored in ______________can be used as a source of energy for life processes. *In all organisms, the energy stored in organic molecules may be ________________________during cellular respiration. **This energy is temporarily ______________________________ molecules. In many organisms, the process of cellular respiration is performed in __________________________________, in which ATP is produced more efficiently, oxygen is used, and carbon dioxide and water are released as wastes.