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#osmosis practice question

3 public questions tagged with this topic.

WATER POTENTIAL+PYQS

If cell A has Ψ = -0.345 MPa and cell B has Ψ = -0.234 MPa, water moves:

That points to B: B to A. Compared with the other options, B to A is the one that correctly describes the WATER POTENTIAL concept. The wrong ones are A) A to B; C) Both ways; D) No movement. If you’re stuck, eliminate anything that contradicts a basic fact you already know for this topic.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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BASICS of PLANT+PYQS

Turgor pressure is exerted by:

Protoplast on cell wall (B) is correct here. This is core BASICS of PLANT: once you know the definition or pathway step, Protoplast on cell wall is the clear fit. The wrong ones are A) Cell wall on protoplast; C) Vacuole on nucleus; D) Membrane on cytoplasm. If the topic is about gradients or potentials, water/solutes move from higher to lower of the relevant quantity.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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BASICS of PLANT+PYQS

Osmotic pressure is the minimum pressure required to:

Pick C: Stop osmosis. Thinking through BASICS of PLANT step by step rules out the lookalikes and leaves Stop osmosis. Skip these: A) Increase osmosis; B) Initiate diffusion; D) Burst the cell. For hormones and genes, match the molecule or gene to its real role, not a neighboring pathway.

Ref: Best CSIR NET Plant Physiology books: Master Unit 6 with Taiz & Zeiger and Salisbury & Ross. Crack Part C experimental questions with top textbooks.

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