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Questions and Answers
What distinguishes autotrophic nutrition from heterotrophic nutrition?
What distinguishes autotrophic nutrition from heterotrophic nutrition?
- Autotrophic nutrition involves dependence on dead organisms, while heterotrophic nutrition involves dependence on other living organisms.
- Autotrophic nutrition requires sunlight, while heterotrophic nutrition does not.
- Autotrophic nutrition occurs in animals, while heterotrophic nutrition occurs only in plants.
- Autotrophic nutrition involves synthesizing food independently, while heterotrophic nutrition involves obtaining food from other organisms. (correct)
All plants are autotrophic, and therefore do not depend on other organisms for food.
All plants are autotrophic, and therefore do not depend on other organisms for food.
True (A)
Define nutrients and their importance to the body.
Define nutrients and their importance to the body.
Nutrients are components of food that the body needs to function properly, supporting growth, energy production, and overall health.
The process by which plants use sunlight to convert water and carbon dioxide into glucose is called ______.
The process by which plants use sunlight to convert water and carbon dioxide into glucose is called ______.
Match the following terms with their correct definitions:
Match the following terms with their correct definitions:
Which component is essential for photosynthesis, giving plants their green color?
Which component is essential for photosynthesis, giving plants their green color?
Algae cannot perform photosynthesis because they do not have chlorophyll.
Algae cannot perform photosynthesis because they do not have chlorophyll.
Explain the role of Rhizobium in the roots of certain plants.
Explain the role of Rhizobium in the roots of certain plants.
The relationship between algae and fungi in lichens is an example of ______.
The relationship between algae and fungi in lichens is an example of ______.
What primary adaptation allows insectivorous plants to thrive in nutrient-poor environments?
What primary adaptation allows insectivorous plants to thrive in nutrient-poor environments?
Symbiosis always involves both organisms benefiting from the relationship.
Symbiosis always involves both organisms benefiting from the relationship.
Describe how the pitcher plant attracts, traps, and digests insects.
Describe how the pitcher plant attracts, traps, and digests insects.
In the hierarchy of life, a group of similar cells performing a specific function is known as a ______.
In the hierarchy of life, a group of similar cells performing a specific function is known as a ______.
Which of the following represents the correct order of biological organization from simplest to most complex?
Which of the following represents the correct order of biological organization from simplest to most complex?
All parasites benefit their host organisms by providing essential nutrients.
All parasites benefit their host organisms by providing essential nutrients.
Which organism is an example of a saprotroph?
Which organism is an example of a saprotroph?
Differentiate between parasites and symbiotic organisms.
Differentiate between parasites and symbiotic organisms.
Plants that consume insects to supplement their nutrient intake are called ______ plants.
Plants that consume insects to supplement their nutrient intake are called ______ plants.
Match the following organisms with their mode of nutrition:
Match the following organisms with their mode of nutrition:
Which statement best describes why chlorophyll is important to plants?
Which statement best describes why chlorophyll is important to plants?
Flashcards
What is nutrition?
What is nutrition?
The mode of taking food and its utilisation by the body.
Autotrophic nutrition
Autotrophic nutrition
A mode of nutrition where organisms are self-sufficient and don't depend on other organisms for food.
Heterotrophic nutrition
Heterotrophic nutrition
A mode of nutrition where organisms depend on other organisms for food.
Saprotrophic nutrition
Saprotrophic nutrition
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What are nutrients?
What are nutrients?
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What is photosynthesis?
What is photosynthesis?
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What is chlorophyll?
What is chlorophyll?
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What is Rhizobium?
What is Rhizobium?
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What is symbiosis?
What is symbiosis?
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What are insectivorous plants?
What are insectivorous plants?
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Study Notes
- Nutrition is the method of consuming food and how it is utilized.
Autotrophic Nutrition
- Organisms do not depend on other organisms for nutrition.
- "Auto" means self, and "Trophos" means nourishment.
Heterotrophic Nutrition
- Organisms depend on other organisms for nutrition.
- "Heteros" means others.
Saprotrophic Nutrition
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Organisms depend on dead organisms for nutrition.
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Plants prepare food for most animal species, these species are then referred to as heterotrophs.
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Plants, however, are autotrophic.
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Some select plants and animals are saprotrophic.
Nutrients
- Nutrients are food components that are needed for proper bodily function.
Photosynthesis
- Photosynthesis is the process where plants use sunlight and water to create food.
- Chlorophyll, found in plant leaves, gives plants their green color.
- Photosynthesis relies on chlorophyll.
Hierarchy of Life
- Cell: The smallest, simplest, and most fundamental building block of life.
- Tissue: Cells form tissues.
- Tissue System: Tissues form tissue systems.
- Organ: Tissue systems form organs.
- Organ System: Organs form organ systems.
- Organism: Organ systems create an organism.
Algae
- Slimy, small, green, leaf-like organisms in water bodies with hard bottoms.
- Contain chlorophyll.
- Capable of creating their own food through photosynthesis.
Parasites
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Organisms that rely on others for food without providing benefit in return.
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Rhizobium is a bacterium living on plant roots, providing plants with usable atmospheric nitrogen in exchange for food, illustrating symbiosis.
Symbiosis
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Process where organisms bond to mutually benefit each other.
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Lichens, a symbiotic relationship between fungus and algae, exemplify this.
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Algae provide food, while lichens offer shelter, water, and minerals.
Insectivorous Plants
- Plants consuming insects for nutrition.
- Pitcher plants are an example of insectivorous plants.
- Pitcher plants attract insects with bright colors and sweet smells.
- Insects slip on the pitcher's rim and fall inside.
- Enzymes in the pitcher break down the insect for nutrient absorption, especially nitrogen.
- These nutrients aid the plant's growth, especially in nutrient-poor soils.
- Pitcher plants trap insects to acquire necessary nutrients for survival.
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