Assertion: Diffusion is insufficient to meet the energy demands in multicellular organisms.Reason: Not all cells in a multicellular organism is in contact with the external environment.Both Assertion (A) and Reason (R) are the true and Reason (R) is a correct explanation.Both Assertion (A) and Reason (R) are the true but Reason (R) is not a correct explanation.Assertion (A) is true and Reason (R) is false.Assertion (A) is false and Reason (R) is true.

n the following Questions, the Assertion and Reason have been put forward. Read the statements carefully andchoose the correct alternative from the following: (2 MARKS) a) Both the Assertion and the Reason are correct andthe Reason is the correct explanation of the Assertion. b) The Assertion and the Reason are correct but the Reasonis not the correct explanation of the Assertion. c) Assertion is true but the Reason is falsed) The statement of the Assertion is false but the Reason is true.a. Assertion: In both plant and animal cells, the main area of cellular activities is cytoplasm.Reason: Various chemical reactions occur in cytoplasm to keep the cell in living state.b. Assertion: Living organisms are composed of cells and products of cells.Reason: All cells arise from pre-existing cells

Directions: In the following questions, a statement of assertion is followed by a statementof reason.Mark the correct choice as:(a) If both Assertion and Reason are true and Reason is the correct explanation of Assertion.(b) If both Assertion and Reason are true but Reason is not the correct explanation ofAssertion.(c) If Assertion is true but Reason is false.(d) If both Assertion and Reason are false.1.Assertion(A): Chloroplasts mostly occur in mesophyll cells along their walls inside theleaves.Reason(R) : The membrane system of chloroplast is responsible for trapping the light energyand also for the synthesis of ATP and NADPH.2. Assertion(A) : The offspring produced by sexual reproduction is likely to adjust better inenvironmental fluctuation.Reason (R) : During the fusion of gametes there is mixing of genetic material from twoparents

Assertion: Nutrition is an essential life process required for survival.Reason: Nutrition provides energy for all physiological processes.Both Assertion (A) and Reason (R) are the true and Reason (R) is a correct explanation.Both Assertion (A) and Reason (R) are the true but Reason (R) is not a correct explanation.Assertion (A) is true and Reason (R) is false.Assertion (A) is false and Reason (R) is true.

In each of the questions given below, there are two statements marked as Assertion (A) and Reason (R). Mark your answer as per the codes provided below: Assertion A: For animals physical facility is necessary as well as adequateReasoning R: For human being physical facility is necessary but not adequateBoth A and R are true and R is the correct explanation of A.Both A and R are true but R is not the correct explanation of A.A is true but R is false.A is false but R is true.Both A and R are false.

Assertion: Transpiration occurs from the surface of leaves only.Reason: Excess water is given off by plants in the form of water vapour by a process called transpiration.Both Assertion (A) and Reason (R) are the true and Reason (R) is a correct explanation.Both Assertion (A) and Reason (R) are the true but Reason (R) is not a correct explanation.Assertion (A) is true and Reason (R) is false.Assertion (A) is false and Reason (R) is true.