STOMATA MOVEMENT +PYQS

STOMATA MOVEMENT +PYQS

Xanthophyll cycle plays role mainly in:

Blue light sensing (B) is correct here. This is core STOMATA MOVEMENT: once you know the definition or pathway step, Blue light sensing is the clear fit. The wrong ones are A) CO₂ fixation; C) Respiration; D) Transpiration pull. 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.

View Details

STOMATA MOVEMENT +PYQS

Which process directly causes guard cell swelling?

Pick B: Endosmosis of water. Thinking through STOMATA MOVEMENT step by step rules out the lookalikes and leaves Endosmosis of water. Skip these: A) Active ion pumping; C) Diffusion of gases; D) Photosynthesis. 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.

View Details

STOMATA MOVEMENT +PYQS

Stomatal movement is absent in:

Pick C: Algae. Thinking through STOMATA MOVEMENT step by step rules out the lookalikes and leaves Algae. Skip these: A) Angiosperms; B) Gymnosperms; D) Pteridophytes. 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.

View Details

STOMATA MOVEMENT +PYQS

Stomatal opening is maximum when leaf water potential is:

Correct option is C, High. In STOMATA MOVEMENT problems like this, the accurate statement is High; the others are common mix-ups. Not these: A) Low; B) Zero; D) Negative. 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.

View Details

STOMATA MOVEMENT +PYQS

Aquaporins in guard cells mainly facilitate:

Correct option is C, Water transport. In STOMATA MOVEMENT problems like this, the accurate statement is Water transport; the others are common mix-ups. Not these: A) Ion transport; B) Sugar transport; D) ATP transport. 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.

View Details

STOMATA MOVEMENT +PYQS

DTT inhibits blue-light-induced stomatal opening by blocking formation of:

Answer: C) Zeaxanthin. For STOMATA MOVEMENT, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Violaxanthin; B) Antheraxanthin; D) Chlorophyll. 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.

View Details

STOMATA MOVEMENT +PYQS

DCMU inhibits stomatal opening by inhibiting:

Photosynthetic electron transport (B) is correct here. This is core STOMATA MOVEMENT: once you know the definition or pathway step, Photosynthetic electron transport is the clear fit. The wrong ones are A) Respiration; C) Ion channels; D) ATP synthesis in mitochondria. 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.

View Details

STOMATA MOVEMENT +PYQS

Green light reverses blue-light-induced stomatal opening through:

Pick C: Zeaxanthin. Thinking through STOMATA MOVEMENT step by step rules out the lookalikes and leaves Zeaxanthin. Skip these: A) Phototropins; B) Phytochromes; D) Cryptochromes. 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.

View Details

STOMATA MOVEMENT +PYQS

High intercellular CO₂ concentration leads to:

Go with B — Stomatal closure. Under STOMATA MOVEMENT, 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) Stomatal opening; C) No effect; D) Guard cell swelling. 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.

View Details

STOMATA MOVEMENT +PYQS

Low intercellular CO₂ concentration causes stomata to:

Pick C: Open. Thinking through STOMATA MOVEMENT step by step rules out the lookalikes and leaves Open. Skip these: A) Close; B) Remain unchanged; D) Undergo plasmolysis. 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.

View Details

STOMATA MOVEMENT +PYQS

In darkness, stomata close due to:

Answer: B) Exosmosis of water. For STOMATA MOVEMENT, remember the key idea and you’ll land on this option; the distractors usually swap cause and effect or confuse similar terms. Avoid: A) Increase in turgor pressure; C) K⁺ accumulation; D) Decrease in CO₂. 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.

View Details

STOMATA MOVEMENT +PYQS

ABA induces stomatal closure mainly by causing:

Correct option is C, K⁺ efflux. In STOMATA MOVEMENT problems like this, the accurate statement is K⁺ efflux; the others are common mix-ups. Not these: A) K⁺ influx; B) Cl⁻ influx; D) Water endosmosis. 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.

View Details