Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETBotanyEcosystem

Read the following statements and choose the correct option: 1. Plants and photosynthetic bacteria, fix Sun's radiant energy to make food from simple inorganic materials 2. Plants capture nearly 50 per cent of the PAR and this amount of energy sustains the entire living world 3. All organisms are dependent for their food on producers, either directly or indirectly 4. Sun is the only source of energy for all ecosystem

Options

  1. AOnly 4 is correct
  2. Ball are correct except 5
  3. C1,2,3 are correct
  4. DOnly 2 and 4 are incorrect

Correct answer

D. Only 2 and 4 are incorrect

Step-by-step solution

Plants and photosynthetic bacteria, fix Sun's radiant energy to make food from simple inorganic materials. plants capture only 2-10 per cent of the PAR and this small amount of energy sustains the living world. All organisms are dependent for their food on producers either directly or indirectly. Ecosystems are not exempt from the Second Law of thermodynamics

Practice Ecosystem on Quantrex Academy →

More from Ecosystem

Match List I with List II : List I List II A. Productivity I. Gross primary productivity minus respiration losses B. Net primary productivity II. Rate of formation of new organic m 2026Ecological pyramids represent the relationship between the organisms at different trophic levels and they are generally inverted for : 2026Which of the following statements are correct ? (a) Energy flow from producers to consumers is unidirectional (b) Energy pyramid can never be inverted (c) Transfer of energy follow 2026Which of the following are primary consumers in a food chain ? 2026Match List I with List II : List I List II A. Decomposition I. Accumulation of dark coloured amorphous colloidal substance B. Detritus II. Release of inorganic nutrients by the act 2026Which of the following is the unit of productivity of an Ecosystem? 2025Given below are two statements: Statement I : The primary source of energy in an ecosystem is solar energy. Statement II : The rate of production of organic matter during photosynt 2025Given below are two statements: Statement I: In ecosystem, there is unidirectional flow of energy of sun from producers to consumers. Statement II: Ecosystems are exempted from 2nd 2025 Full Ecosystem list All NEET PYQs