Question

Choose the incorrect statements related to internal organization of plants: 
I. Stomata regulate the process of photosynthesis and gaseous exchange. 
II. In bicollateral vascular bundles, xylem and phloem are situated at the same radius of vascular bundles. 
III. Monocot root has more xylem bundles compared to Dicot root.

• A. I and II
• B. II and III
• C. I and III
• D. III only

Hint:

Understanding plant anatomy, especially the arrangement of vascular tissues, is crucial for recognizing how plants manage nutrient and water transport.

Answer 1

The Correct Option is A

Step 1: Evaluating the accuracy of each statement. Statement I is incorrect as stomata primarily regulate gaseous exchange and water vapor loss, though indirectly influencing photosynthesis.
Statement II is incorrect; in bicollateral vascular bundles, xylem and phloem are not situated at the same radius. Typically, xylem is found internally with phloem on both its outer sides.
Statement III is technically correct as monocot roots usually have a radial arrangement with multiple xylem and phloem compared to the dicot's ring arrangement.