4. Plant Physiology
Plant physiology encompasses the essential functions and processes that allow plants to grow and reproduce. Key processes include the transport of water and minerals, photosynthesis for food production, respiration for energy release, and transpiration for water regulation. Various environmental factors impact these physiological activities, influencing plant health and development.
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What we have learnt
- Plant physiology involves the processes that sustain life within plants.
- Water and minerals are vital for plant survival and are transported via xylem.
- Photosynthesis occurs using sunlight to convert carbon dioxide and water into glucose.
Key Concepts
- -- Photosynthesis
- The process by which green plants synthesize food (glucose) utilizing sunlight, carbon dioxide, and water.
- -- Transpiration
- The loss of water vapor from the aerial parts of plants, mainly through stomata, aiding in cooling and maintaining water flow.
- -- Respiration
- The metabolic process in which plants break down glucose in the presence of oxygen, producing carbon dioxide, water, and energy (ATP).
- -- Xylem
- Vascular tissue in plants responsible for the transport of water and dissolved minerals from the roots to the rest of the plant.
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