Last updated on June 26th, 2023 at 10:45 pm
Chapter 2 – Plants: Structure and Function
Fill in the blanks:
- The tip of the leaf is called the …………..
- Leaves of some plants have a stalk called a …………..
- Flowers may have a long or a short stalk called …………..
- The tip of the apical end of the stem is called a …………..
- Roots bear hair-like processes near the root tips are ……………
- Peepal leaf-blade has …………… venation
- Maize leaf-blade has ………….. venation
Answers
- Leaf apex
- Petiole
- Pedicel
- Bud
- Root hairs
- Reticulate
- Parallel
Answer the following questions:
[Que] Difference between radicle and plumules.
The part that grows from inside the seed towards the soil is called the radicle and the part that grows above the soil is called the plumules.
[Que] Define root cap and what is its function.
The tip is covered by a cap-like structure called the root cap. The root cap protects the root tip from injuries.
[Que] Define Leaf Blade.
The broad, spread-out part of the leaf is called the leaf blade or Lamina and its edge is called the leaf margin.
[Que] What are the different parts of a flower?
Calyx, corolla, androecium, and gynoecium are different parts of a flower.
[Que] Define Monocot seeds.
Seeds that do not divide into two equal parts are called monocotyledonous seeds.
[Que] Define Dicot seeds.
Seeds that get divided into two equal parts are called dicotyledonous Seeds.
[Que] Which is the female reproductive part of a flower?
Gynoecium.
[Que] Which is the male reproductive part of the flower?
Androecium
[Que] What is pollination?
In the process of pollination, pollen grains are released after the anthers burst and fall on the stigma. During pollination, ovules are fertilized. Fertilized ovules mature into seeds and form fruits in the ovary.
Give examples of 3 plants that have:
- Spiny Fruits – Jackfruit, Breadfruits, and Custard Apple.
- Spiny Stem – Rose, Cactus
- Red Flowers – Rose, Hibiscus,
- Yellow Flowers – marigold, sunflower
- Leaves Which Close at Night – Mimosa & Acacia
- Single-Seeded Fruits – Mango
- Many-Seeded Fruits – Apple, Watermelon and Papaya
