Biology Practice: Transpiration (Mock Test 3 - Advanced Processes & Mechanisms)
1. What is the fundamental mechanism behind the "Sugar-Starch Hypothesis" for stomatal opening?
2. How does the "Potassium Ion ($K^+$) Exchange Theory" explain stomatal opening?
3. Why does high "Atmospheric Humidity" significantly reduce the rate of transpiration?
4. Which mechanism allows "Transpirational Pull" to lift water to the top of a Sequoia tree against gravity?
5. What is the metabolic consequence of "Wilting" in terms of photosynthesis?
6. The "Cooling Effect" of transpiration is a thermodynamic process where:
7. Why is transpiration called a "Necessary Evil" by botanists?
8. Which mechanism explains the closure of stomata during a "Mid-day Check"?
9. What is the role of "Abscisic Acid (ABA)" in transpiration control?
10. The process of "Lenticular Transpiration" continues even at night because:
11. Which factor would cause the "Air Bubble" in a potometer to move the fastest?
12. The term "Phyllode" in Australian Acacia represents a mechanism where:
13. In a "Cobalt Chloride" experiment, why does the lower surface of a leaf turn pink faster than the upper surface?
14. What is the role of "Suberin" in the bark regarding water loss?
15. How does a "Decrease in $CO_2$ Concentration" inside the leaf affect stomata?
16. The "Diffusion Pressure Deficit (DPD)" of a leaf cell increases when:
17. Which of these anatomical modifications is NOT for reducing transpiration?
18. The "Guttation" fluid differs from transpiration vapor because it contains:
19. "Vaporization" in the leaf occurs at the surface of:
20. The speed of the transpiration stream is highest during:
