Biology Practice: The Leaf (Test 3 - Advanced)
1. Which of the following best explains why a plant with a Fibrous root system usually has Parallel venation?
2. If a scientist removes the "Guard Cells" from a leaf, what would be the most immediate physiological consequence?
3. In the process of Transpiration, water moves from the roots to the leaves against gravity. What creates this upward force?
4. Why is Starch, rather than Glucose, the primary storage form of food in plants?
5. Compare a Potato (tuber) and a Sweet Potato (root). Even though both grow underground and store food, they are different because:
6. What is the evolutionary advantage of "Insectivorous" behavior in plants like the Pitcher Plant?
7. A plant is placed in a completely dark room for a week. What is the most likely result regarding its "Food Factory"?
8. "Pneumatophores" grow vertically upward, which is the opposite direction of most roots. What is the reason for this "negative geotropism"?
9. In desert plants like Opuntia, the leaves are reduced to spines. How does this double-adaptation help the plant?
10. Analyze the relationship: Reticulate Venation is to Tap Roots as Parallel Venation is to ________.
11. During the night, most plants close their stomata. What is the primary reasoning behind this behavior?
12. The "Radicle" is to the root system what the "Plumule" (embryonic shoot) is to the:
13. How does the stem support the "Respiratory" needs of a plant?
14. If a plant has "Vegetative Propagation" abilities via its leaves (like Bryophyllum), what does this imply for its survival?
15. What would be the effect of painting a thick layer of oil on the underside of all the leaves of a healthy plant?
16. Which modification allows a Banyan tree to expand over a very large area without the main trunk breaking?
17. In the photosynthesis equation, Oxygen is listed as a "by-product." This means:
18. Why do climbers like Grapevines develop "Tendrils"?
19. What is the specific function of the "Midrib" in a leaf's anatomy?
20. If you observe a plant with "Adventitious roots" growing from its stem nodes, such as Sugarcane, what is the likely purpose?
