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#phototropin MCQ

7 public questions tagged with this topic.

Which phototropin mainly controls chloroplast avoidance response?

That points to B: PHOT2. Compared with the other options, PHOT2 is the one that correctly describes the Phototropin+All concept. The wrong ones are A) PHOT1; C) CRY1; D) ZTL. 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.

Autophosphorylation of phototropin occurs on:

The right choice is C: Serine residues. In Phototropin+All, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Tyrosine residues; B) Histidine residues; D) Aspartate residues. 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.

The kinase domain of phototropin is:

The right choice is C: Serine/threonine kinase. In Phototropin+All, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Tyrosine kinase; B) Histidine kinase; D) MAP kinase. 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.

Phototropin is classified as:

The right choice is B: Flavoprotein kinase. In Phototropin+All, that matches how the process or concept actually works — the other choices mix up related ideas or use the wrong mechanism. Skip these: A) Phytochrome; C) Steroid receptor; D) Ion channel. 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.