7 public questions tagged with this topic.
Guard cells control the opening and closing of stomata by regulating turgor pressure.
Ref: NCERT Class 11 Biology Chapter 6: Anatomy of Flowering Plants Anatomy of Dorsiventral and Isobilateral Leaf
Guard cells regulate the opening and closing of stomatal pores to control transpiration and gas exchange.
Ref: NCERT Class 11 Biology Chapter 6: Anatomy of Flowering Plants Tissue System - Epidermal Ground and Vascular
When water flows into the guard cells, they swell, causing the stomatal pore to open. When they lose water, they shrink and the pore closes.
Ref: NCERT Text book class 10 Biology Chapter 5 life process
C fits best: Zeaxanthin. Keep the Phototropin+All basics straight and Zeaxanthin stands out as the precise answer. Avoid: A) Carotene; B) Chlorophyll; D) Lutein. 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.
Answer: C) Regulation of stomatal aperture. 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) Photosynthesis; B) Mechanical support; D) Ion synthesis. 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.
B fits best: Endosmosis into guard cells. Keep the STOMATA MOVEMENT basics straight and Endosmosis into guard cells stands out as the precise answer. Avoid: A) Exosmosis from guard cells; C) Plasmolysis; D) Loss of K+ ions. 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.
B fits best: Turgor pressure of guard cells. Keep the STOMATA MOVEMENT basics straight and Turgor pressure of guard cells stands out as the precise answer. Avoid: A) Osmotic pressure of epidermal cells; C) Capillary action; D) Diffusion pressure deficit. 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.
