#water potential

PSS- Sec-F-Transport

Major factors contributing to water potential (ψw) include:

Go with B — ψs, ψp and ψg. Under PSS- Sec-F-Transport, this is the standard explanation you’d use in class: it names the real driver or definition, while the rest are nearby but wrong. Not these: A) ψs and ψp only; C) ψp and ψg only; D) ψs and ψm only. When two options sound similar, choose the one that matches the textbook definition most tightly.

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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WATER POTENTIAL+PYQS

DPD (Diffusion Pressure Deficit) refers to:

B fits best: Difference in diffusion pressure from pure water. Keep the WATER POTENTIAL basics straight and Difference in diffusion pressure from pure water stands out as the precise answer. Avoid: A) Total water potential; C) Osmotic pressure; D) Turgor pressure. Light and flowering items often hinge on which photoreceptor or day-length rule is in play.

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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WATER POTENTIAL+PYQS

Osmotic potential is independent of:

Nature of solute (B) is correct here. This is core WATER POTENTIAL: once you know the definition or pathway step, Nature of solute is the clear fit. The wrong ones are A) Solute concentration; C) Temperature; D) Pressure. 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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WATER POTENTIAL+PYQS

Matric potential arises due to:

Go with C — Binding of water to surfaces. Under WATER POTENTIAL, this is the standard explanation you’d use in class: it names the real driver or definition, while the rest are nearby but wrong. Not these: A) Solute dissolution; B) Hydrostatic pressure; D) Gravity. When two options sound similar, choose the one that matches the textbook definition most tightly.

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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WATER POTENTIAL+PYQS

Matric potential (Ψm) is significant in:

C fits best: Dry soils and seeds. Keep the WATER POTENTIAL basics straight and Dry soils and seeds stands out as the precise answer. Avoid: A) Well-watered cells; B) Xylem sap; D) Phloem sap. Light and flowering items often hinge on which photoreceptor or day-length rule is in play.

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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WATER POTENTIAL+PYQS

Gravitational potential (Ψg) depends on:

Answer: B) Height of water column. For WATER POTENTIAL, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Solute concentration; C) Temperature; D) Membrane permeability. Name the process first, then pick the option that describes it — don’t reverse cause and effect.

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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WATER POTENTIAL+PYQS

Positive pressure potential is also called:

C fits best: Turgor pressure. Keep the WATER POTENTIAL basics straight and Turgor pressure stands out as the precise answer. Avoid: A) Tension; B) Matric force; D) Osmotic pressure. Light and flowering items often hinge on which photoreceptor or day-length rule is in play.

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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WATER POTENTIAL+PYQS

Increase in solute concentration causes water potential to:

Pick D: Become more negative. Thinking through WATER POTENTIAL step by step rules out the lookalikes and leaves Become more negative. Skip these: A) Increase; B) Become zero; C) Become less negative. 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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WATER POTENTIAL+PYQS

Solute potential (Ψs) is always:

The right choice is C: Negative. In WATER POTENTIAL, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Positive; B) Zero; D) Equal to Ψp. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.

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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WATER POTENTIAL+PYQS

Water potential (Ψw) is defined as:

Pick A: Free energy of water per unit volume. Thinking through WATER POTENTIAL step by step rules out the lookalikes and leaves Free energy of water per unit volume. Skip these: B) Total water content in cell; C) Osmotic pressure of solution; D) Rate of water diffusion. 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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BASICS of PLANT+PYQS

Hypotonic solution has _____ water potential compared to cell.

The right choice is C: Higher. In BASICS of PLANT, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Lower; B) Equal; D) Zero. A quick check: if an option needs energy, pumps, or the opposite direction of movement, ask whether that really applies.

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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