Question:
What are sepals? What are their functions?
Answer:
The small green coloured leaf-life structures are called sepals. It protects flower when it is in stage of bud.
Getting to Know Plants
Q 1.
Write the names of the parts of a flower in sequence, from outside to inside.
Q 2.
List few plants found around your house.
Q 3.
Why do we see dew drops on leaves in the early morning?
Q 5.
Name the part of plant which helps in holding the plant in the soil.
Q 7.
Why does white flowers bloom at night?
Q 8.
What are lateral roots?
Q 9.
Name the female part of a flower. Write names of its parts and draw a diagram.
Q 10.
What is the function of a stem in a plant?
Q 12.
Name the prominent parts of a flower.
Q 14.
Name two flowers, each with joined and separates sepals.
Q 15.
Name the process by which leaves can prepare their food.
Q 16.
What are fibrous roots?
Q 17.
What are shrubs? Give two examples.
Q 18.
What are creepers? Write an example.
Q 19.
Name the part of the plant which produces its food. Name this process.
Q 20.
Give two examples of trees.
Q 21.
Name a plant that eats insect.
Q 22.
Leaves need oxygen and carbon-dioxide (for photosynthesis). How do they get these gases?
Q 23.
What are the major parts of plants?
Q 25.
Name two plants which have fibrous root.
Q 26.
Does the stem prepare food for any plant?
Q 27.
Correct the following statements and rewrite them in your notebook.
(a) Stem absorbs water and minerals from the soil.
(b) Leaves hold the plant upright.
(c) Roots conduct water to the leaves.
(d) The number of sepals and petals in a flower is always equal.
(e) If the sepals of a flower are joined together, its petals are also joined together,
(f) If the petals of a flower are joined together, then the pistil is joined to the petal.
Q 28.
What are tap roots?
Q 29.
Give names of two plants which have tap root.
Q 30.
What are sepals? What are their functions?
Q 34.
Explain the important functions of root.
Q 35.
Can you find a plant in your house or in your neighbourhood which has a long but a weak stem? Write its name. In which category would you classify it?
Q 36.
If a plant has fibrous root, what type of venation are its leaves likely to have?
Q 37.
What is leaf venation?
Q 38.
Where does the photosynthesis take place in plants?
Q 39.
Does the stem prepare food for any plant?
Q 40.
What are petals? Why are they generally coloured?
Q 41.
Name the various parts of pistil.
Q 42.
Classify plants and give an example of each.
Q 43.
What are trees? Give two examples.
Q 44.
What are unisexual and bisexual flowers?
Q 45.
Name a plant that has underground as well as aerial (above the ground) root system.
Q 46.
Why are petals colourful?
Q 47.
How can one destarch the leaves of potted plant without plucking, them?
Q 48.
Name the male part of a flower. Write names of its parts and draw a diagram.
Q 49.
Explain an activity to test the presence of starch in a leaf.
Q 50.
Which of the following leaves have reticulate venation?
Wheat, tulsi, maize, grass, coriander (dhania), china rose.
