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NEET Practice Questions (MCQs) with Answers & Solutions

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All Physics Chemistry Botany Zoology

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Donnan equillibrium is achieved at which surface ?

A. Cell wall B. Nuclear membrane C. plasma membrane D. Vascular membrane

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One plant is given Urea fertilizer, but it has deficiency of phosphorous, this plant will show which symptom?

A. Cambium activity reduces B. fruit size diminishes C. Grey spots on leaves D. seed dormancy increases.

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State deficiency symptoms of Mo.

A. fruit yeild decreases B. fall of fruit C. N - deficiency appears. D. death of root-apex and shoot-apex.

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State importance of Ca.

A. Structural component of plasma membrane B. For the synthesis if IAA. C. Formation of bipolar centriole during cell-division D. Formation of nuclear membrane

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Deficiency of which mineral causes shortening of internodes and reduction in cambium activity?

A. K B. Fe C. Cu D. B

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In the first phase of absorption of mineral ions fromsoil to root, element passes through which plant ?

A. Cell wall B. Nuclear membrane C. tonoplast D. plasma membrane

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By which principle, indirect storage of stable and non-diffusible ions is explained ?

A. ion exchange B. principle of mass flow C. Donnan equillibrium D. principle of Diffusion

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According to mass flow principle what is responsible for absorption of water ?

A. Transpiration B. Turgidity C. Osmotic pressure D. Turgor pressure

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Formation of FAD during Nd₂d fixation occurs during which processes ?

A. Growth and development B. cell division and differentiation C. photosynthesis and transpiration D. Respiration and photosynthesis

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What is the function of leg haemoglobin ?

A. To protect Nif gene from the side effect of Od₂d B. To proctect nitrogenase from the side effect of Od₂d C. To provide atmosheric Nd₂d to Rhizobium bacteria D. To synthesis reduction inducing unit FAD.

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