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Questions and Answers
Which type of nutrition involves producing one's own food through photosynthesis or chemosynthesis?
What is the process of obtaining and utilizing nutrients for energy, growth, and maintenance called?
Which mode of nutrition involves obtaining nutrients by breaking down dead organic matter?
What is the process of breaking down food particles into smaller molecules called?
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What is the process of absorbing nutrients into the bloodstream called?
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Why is nutrition important for living organisms?
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Study Notes
Nutrition
Definition
- The process by which living organisms obtain and utilize nutrients for energy, growth, and maintenance.
Types of Nutrition
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Autotrophic Nutrition: Organisms that produce their own food through photosynthesis or chemosynthesis.
- Examples: plants, algae, some bacteria
-
Heterotrophic Nutrition: Organisms that cannot produce their own food and obtain nutrients by consuming other organisms.
- Examples: animals, fungi, some bacteria
Modes of Nutrition
-
Holozoic Nutrition: Organisms that ingest and digest solid food particles.
- Examples: animals, humans
-
Saprotrophic Nutrition: Organisms that obtain nutrients by breaking down dead organic matter.
- Examples: fungi, some bacteria
-
Parasitic Nutrition: Organisms that obtain nutrients by feeding on another living organism.
- Examples: tapeworms, fleas
Nutrient Uptake
- Ingestion: Taking in food particles through the mouth.
- Digestion: Breaking down food particles into smaller molecules.
- Absorption: Absorbing nutrients into the bloodstream.
- Assimilation: Converting absorbed nutrients into energy or organic compounds.
Importance of Nutrition
- Essential for growth, development, and maintenance of living organisms.
- Provides energy for various life processes.
- Supports the immune system and overall health.
Nutrition
Definition
- Nutrition is the process by which living organisms obtain and utilize nutrients for energy, growth, and maintenance.
Types of Nutrition
Autotrophic Nutrition
- Produces own food through photosynthesis or chemosynthesis.
- Examples: plants, algae, some bacteria.
Heterotrophic Nutrition
- Cannot produce own food and obtains nutrients by consuming other organisms.
- Examples: animals, fungi, some bacteria.
Modes of Nutrition
Holozoic Nutrition
- Ingests and digests solid food particles.
- Examples: animals, humans.
Saprotrophic Nutrition
- Obtains nutrients by breaking down dead organic matter.
- Examples: fungi, some bacteria.
Parasitic Nutrition
- Obtains nutrients by feeding on another living organism.
- Examples: tapeworms, fleas.
Nutrient Uptake
- Ingestion: takes in food particles through the mouth.
- Digestion: breaks down food particles into smaller molecules.
- Absorption: absorbs nutrients into the bloodstream.
- Assimilation: converts absorbed nutrients into energy or organic compounds.
Importance of Nutrition
- Essential for growth, development, and maintenance of living organisms.
- Provides energy for various life processes.
- Supports the immune system and overall health.
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Description
Learn about the process of nutrition, types of nutrition, and modes of nutrition in living organisms. Discover the differences between autotrophic and heterotrophic nutrition.
