A Answer the following questions:
1. Write two differences between tap roots and fibrous roots. Give two examples of each.
2. Can the stem prepare food in special cases? Give examples.
3. What is the significance of stomata in the leaves?
4. Differentiate between stem tendrils and leaf tendrils.
5. Name the four whorls in a typical flower.
6. How does a plant grow from a seed?
B. Answer the following questions in detail:
1. How are roots, stems and leaves of different plants modified for providing additional support? Give examples
2. Discuss the various functions carried out by the roots and stem of a typical plant.
3. Explain the structure of a typical flower.
4. Describe the ways in which different flowers vary from each other.
5. How does a seed develop into a plant? What are the functions of its parts?.
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Answers
Answer:
Shashank 4S and the same thing you have any other person to you for your reference to your family are
Answer:
1.Tap roots :=1.Tap root has only one main and long root. The smaller roots that grow from the main root are called lateral roots.example:= rice and corn
2.Tap root grows vertically deep
into the soil
Fibrous root :=1.Fibrous roots do not have a main root. All roots are similar.example:=carrot and beetroot
2.Fibrous roots are short and most of them grow horizontally in the soil.
2.Yes, if the stem is green and contains chlorophyll, it can prepare food for the plant. While most photosyntesis takes place in the leaves, some photosynthesis takes place in the stem too. The stem of the cactus plant synthesizes its own food because there are no leaves.
3.Stomata are composed of a pair of specialized epidermal cells referred to as guard cells (Figure 3). Stomata regulate gas exchange between the plant and environment and control of water loss by changing the size of the stomatal pore.
4.The key difference between stem tendril and leaf tendril is that stem tendril is a modified stem while leaf tendril is a modified leaf, leaflet or a leaf part. Tendril is a modified stem, leaf or petiole that is thread-like in shape. ... Stem tendrils and leaf tendrils are seen in many climbing plants.
5.the calyx, corolla, androecium, and gynoecium
6.When a seed comes to rest in an appropriate place with conditions suitable to its germination, it breaks open. The embryo inside the seed starts to grow into a seedling. Roots grow down to anchor the plant in the ground. Roots also take up water and nutrients and store food.