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#water potential question

2 public questions tagged with this topic.

Positive pressure potential has what effect on water potential?

B fits best: Raises it. Keep the PSS- Sec-F-Transport basics straight and Raises it stands out as the precise answer. Avoid: A) Lowers it; C) No effect; D) Makes it zero. 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.

Pure water in open beaker has Ψp equal to:

Correct option is B, 0 MPa. In WATER POTENTIAL problems like this, the accurate statement is 0 MPa; the others are common mix-ups. Not these: A) 1 MPa; C) -1 MPa; D) Variable. 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.