TOPIC: Nature Walk Tables, In-Text Activities & Back-Exercise Question & Answers
Nature Walk, Activities & Back Exercises
Topic: Nature Walk Tables, In-Text Practical Labs & Solved NCERT Questions
🤪 1. The “Thirsty Juice Straw” Stem
Imagine your plant as a giant sitting at a restaurant with an insanely tall straw. The stem doesn’t use muscles; it uses microscopic straw-like tubes (xylem) to pull water all the way from dirty mud up to the topmost flower without spilling a drop!
🤪 2. The “Lazy Root” Detective
Roots are blind, deaf, and buried in pitch-black dirt, yet they always know which way is down! If you plant a seed upside down, the roots still stubbornly turn downward into the soil while the shoot climbs up toward the sun, like a teenager rolling out of bed toward the kitchen.
🤪 3. The “Spy” Leaf Venation Trick
You don’t even have to dig up a plant’s roots to know what kind of root it has! Just look at its leaf: if the veins look like a spiderweb (reticulate), it’s secretly a Taproot; if the veins run straight like railway tracks (parallel), it’s a Fibrous Root. Plants can’t hide their secrets!
Corrected Statement Roots absorb water and minerals from the soil, while the stem conducts them upward to leaves and branches.
Corrected Statement Roots hold the plant firmly in the soil (anchorage), while the stem holds the plant upright and supports branches and leaves.
NCERT Solution If a plant has a fibrous root system, its leaves will have Parallel Venation (following the universal plant correlation rule).
1. What do we call the process by which leaves release excess water vapor into the atmosphere?
2. Which plant part is responsible for anchoring the plant securely in the soil?
3. If a plant has leaves with net-like reticulate venation, what root type does it have?