describe and explain the physiological and biochemical perturbations in plants caused by flactuations in the abiotic invironments
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describe and explain the physiological and biochemical perturbations in plants caused by flactuations in the abiotic invironments
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- Differentiate the saturation concept from the limiting factor concept of plant response to the environment.Compare and contrast the acquisition and transport of water and nutrients in plants with the acquisition and transport of nutrients in humans. kind of in detail if possible.Describe various factors that affect plant growth (e.g. growth regulators,sunlight, nutrients, water, tropism), and explain by giving example, why someplants can live in the forest although they might not be exposed to the sun ‘nosunlight can reach them’.
- Discuss early events in the sensing of abiotic stress by plants and the acclimation pathways activated by the events. Focus on membrane stability and integrity, protein/DNA structure, enzyme activity and signalling.Outline the function and deficiency disease of plants nutrients.Heavy metal stress is associated with the following plant responses except: * A. Phytochelatin production for heavy metal chelation B. Catalase production for heavy metal chelation C. Heavy metal sequestration in the central vacuole D. No changes in plant response in the tolerance zone
- Explain plant adaptation and resistance to high temperaturesDraw a diagram illustrating how latent heat flux is driven by humidity gradients between the inside of a stomatal cavity, the leaf surface and the bulk atmosphere.List the major nutritional resources that most plants need forhealthy growth.
- Many plants that produce nodules for nitrogen-fixing bacteria are common on disturbed sites. Explain how these plants might simultaneously compete with and facilitate other plant species.Describe some agricultural applications of vegetativereproductionWhat are the dependent, independent and extraneous variables that can affect the growth of a plant because of geotropism, hydrotropism and phototropism?
