3 public questions tagged with this topic.
Correct option is C, Directional. In Auxin Phytohormone problems like this, the accurate statement is Directional; the others are common mix-ups. Not these: A) Passive; B) Diffusive; D) Random. 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.
Toward base (B) is correct here. This is core Auxin Phytohormone: once you know the definition or pathway step, Toward base is the clear fit. The wrong ones are A) Toward apex; C) Radially; D) Laterally. 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.
The right choice is C: Protein carriers in plasma membrane. In PSS- Sec-F-Transport, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Plasmodesmata; B) Diffusion; D) Xylem vessels. 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.
