2. Dr
III. Short answer type questions.
1. Differentiate between tap root system and fibrous root system.
2. What are prop roots?
3. How do stems of grapes help the plant to climb?
4. What is venation? Name the two types of venations with one example of each.
5. Why are the flowers of some plants brightly coloured and have a sweet smell?
Answers
Answer: 1. The taproot is the differentiated primary root that is thick and grows straight down deep into the soil. ... Fibrous roots form a network of roots near the surface of the soil where they absorb minerals and water. They also hold several soil particles together and thus help to prevent or reduce soil erosion. 2. Other articles where Prop root is discussed: angiosperm: Root systems: …for aerial support, are called prop roots, 3. GRAPEVINES climb up the tree by curling up their stems an forming spiral structures which grants them support to remain on the tree for long time. THESE TYPES OF PLANTS ARE CALLED BINES
Explanation: 4. Reticulate venation involves net-like pattern of arrangement of veins. Most of the angiosperms with two cotyledons in the seed exhibit reticulate venation. e.g. Rose, Maple, Tulsi, Hibiscus, Red gram etc. Parallel venation involves smaller veins running parallel to each other. 5. Most of the flowers are brightly colored with a sweet smell because these things attract the insects so that insects come and sit on them. ... When this insectsit on another flower , there they shed the pollens.