16 Questions
What is the function of chlorophyll in plants?
To prepare their own food using sunlight
What is a common characteristic of animals?
Extreme sensitivity to stimuli
What is the term for any material necessary for an organism's growth and maintenance?
Nutrient
What do autotrophic species derive energy from?
Sunlight and chemosynthesis bacteria
What is necessary for plants to maintain life?
Water, carbon dioxide, and minerals
What are the two routes for water and mineral absorption in plants?
Symplast and apoplast
What is the primary difference between autotrophic and heterotrophic species?
Their mode of feeding
What is the role of chlorophyll in plant nutrition?
To facilitate photosynthesis
Why do plants require an adequate supply of water and minerals?
To support their growth and maintenance
What is the primary function of the xylem in plants?
To transport water and minerals
How do heterotrophic species obtain their nutrition?
By deriving energy from other organisms
What is the term for the process by which plants create their own food?
Photosynthesis
Why are plants considered self-sufficient?
Because they can create their own food
What is the role of the apoplast route in plant nutrition?
To absorb water and minerals from the soil
What is the primary difference between plants and animals?
Their ability to create their own food
What is necessary for autotrophic species to create their own food?
Sunlight and CO2
Study Notes
Nutrition in Living Organisms
- Living organisms require an adequate supply of nutrients for survival, which refers to any material necessary for growth and maintenance.
Autotrophs vs Heterotrophs
- Autotrophs (such as plants) derive energy from sunlight and chemosynthesis bacteria to create their own food through photosynthesis.
- Heterotrophs (such as animals and fungi) do not make their own food and derive their nutrition from other organisms.
Plant Nutrition
- Plants are self-sufficient in terms of nutrition, but also require external resources such as water, carbon dioxide, and minerals for maintenance of life.
- Water and minerals are absorbed by plant roots through two routes: symplast through plasmodesmata and apoplast route along cell walls.
- The conducting tissue of plants, specifically the xylem, must be reached by water and minerals from the soil.
Key Characteristics of Plants and Animals
- Plants have the capacity to prepare their own food with the help of sunlight, water, air, and chlorophyll.
- Animals are characterized by a well-developed body and organ system, and are extremely sensitive to stimuli.
Determine your knowledge of the fundamental differences between plants and animals, including their structures, functions, and responses to stimuli. This quiz covers the basics of plant and animal biology.
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