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#root pressure MCQ

3 public questions tagged with this topic.

WATER TRANSPORT+PYQS

Root pressure becomes insignificant when:

B fits best: Transpiration rate is high. Keep the WATER TRANSPORT basics straight and Transpiration rate is high stands out as the precise answer. Avoid: A) Soil water potential is high; C) At night; D) Humidity is high. 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 TRANSPORT+PYQS

Maximum magnitude of root pressure is approximately:

That points to B: 0.5–0.6 MPa. Compared with the other options, 0.5–0.6 MPa is the one that correctly describes the WATER TRANSPORT concept. The wrong ones are A) 0.05 MPa; C) 5 MPa; D) 10 MPa. 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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WATER TRANSPORT+PYQS

Root pressure is generated due to:

Correct option is B, Active accumulation of mineral ions in xylem. In WATER TRANSPORT problems like this, the accurate statement is Active accumulation of mineral ions in xylem; the others are common mix-ups. Not these: A) Passive diffusion of ions; C) Evaporation from leaves; D) Capillary rise. Tissue transport questions usually turn on xylem vs phloem, living vs dead cells, or source vs sink.

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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