Getting to Know Plants
Correct the following statements and rewrite them in your note book.
Question 1: Stem absorbs water and minerals from the soil.
Answer: Root absorbs water and minerals from the soil.
Question 2: Leaves hold the plants upright.
Answer: Stem holds the plants upright.
Question 3: Roots conduct water to the leaves.
Answer: Stem conducts water to the leaves.
Question 4: The numbers of petals and sepals in a flower is always equal.
Answer: The number of petals and sepals in a flower can be equal or different.
Question 5: If the sepals of a flower are jointed, then the pistil is jointed to the petal.
Answer: It may or may not be true.
Question 6: If the petals of a flower are jointed together, then the pistil is jointed to the the petal.
Answer: It may or may not be true.
Answer the following questions
Question 1: Can you find a plant in your house or in your neighborhood, which has a long but a weak stem? Write its name. In which category would you classify it?
Answer: In my neighborhood, there are many pumpkin plants. They have weak and long stem. The plant is spread on ground. It is an example of creepers.
Question 2: What is the function of a stem in plant?
Answer: Following are the various functions of stem:
- The stem carries water and minerals from the roots to different parts of the plant.
- It gives support to the plant.
- It bears leaves, flowers and fruits.
- The stem carries food made by the leaves to the other parts of the plant.
Question 3: Which of the following leaves have reticulate venation? (Wheat, tulsi, maize, grass, coriander, China-rose)
Answer: China-rose, coriander
Question 4: If a plant has fibrous root, what type of venation do its leaves likely to have?
Answer: Parallel venation
Question 5: If a plant has leaves with reticulate venation, what kind of roots will it have?
Question 6: Is it possible for you to recognize the leaves without seeing them? How?
Answer: Leaves of some plants can be recognized by touching or by smelling. For example; coriander leaves can be easily recognized by their smell.
Question 7: Write the names of the parts of a flower.
Answer: Sepals, petals, stamens, pistil
Question 8: Which of the following plants have you seen? Of those that you have seen, which one has flowers? (Grass, maize, wheat, chilli, tomato, tulsi, pipal, shisham, banyan, mango, jamun, guava, pomegranate, papaya, banana, lemon, sugarcane, potato, groundnut)
Answer: Plant with flowers are: Grass, maize, wheat, chilli, tomato, tulsi, papal, shisham, banyan, mango, jamun, guava, pomegranate, papaya, banana, lemon, potato, groundnut.
Question 9: Name the part of the plant which produces its food. Name this process.
Answer: The leaves produce food for the plant; by the process of photosynthesis.
Question 10: In which part of a flower, you are likely to find the ovary?
Answer: In the pistil
Question 11: Name two flowers, each with joined and separated sepals.
Answer: China-rose has joined sepals and rose has separated sepals.
Question 1: Name the opening through which a leaf breathes?
Question 2: What is fibrous root?
Answer: The bunch of thin fibre-like roots; arising from the base of the stem is called fibrous root.
Question 3: What is tap root?
Answer: When a single main root comes out of the base of the stem, it is called tap root.
Question 4: What is the main function of root?
Answer: Functions of roots are as follows:
- Roots hold the plant firmly in the soil.
- Roots absorb water and minerals from the soil.
Question 5: Which are the basic parts of the flower?
Answer:The basic parts of a flower are –Sepals, petals, stamens and pistils.
Question 6: What is the main function of leaves?
Answer: Making food is the main function of leaves.
Question 7: What is transpiration?
Answer: Loss of water vapour in plants is called transpiration.