Essential Conditions for Plant Growth — NEET Biology
📚 Practice ConceptWhy do you not try to write down what you think are necessary conditions for growth? This list may have water, oxygen and nutrients as very essential elements for growth. The plant cells grow in size by cell enlargement which in turn requires water. Turgidity of cells helps in extension growth. Thus, plant growth and further development is intimately linked to the water status of the plant. Water also provides the medium for enzymatic activities needed for growth. Oxygen helps in releasing metabolic energy essential for growth activities. Nutrients (macro and micro essential elements) are required by plants for the synthesis of protoplasm and act as source of energy.
Which of the following statements correctly describe the essential conditions and influencing factors for plant growth and development? S1: Water provides the medium for enzymatic activities and contributes to cell turgidity for extension growth. S2: Oxygen is critical for releasing metabolic energy required for various growth activities within the plant. S3: Both macro and micronutrients are required for protoplasm synthesis and serve as primary energy sources for plant growth. S4: Environmental factors such as light and gravity primarily act as direct metabolic inhibitors, restricting overall plant development. S5: Every plant species possesses an optimum temperature range, deviation from which can be detrimental to its survival and growth. S6: Intrinsic factors like plant growth regulators operate independently of external environmental signals, solely governing internal developmental processes.
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