ANSWER THE FOLLOWING QUESTIONS.
Define root system. Give two functions of roots.
Define shoot system. Give two functions of the stem.
How is a tap root different from a fibrous root? Give one example of each type.
What is a leaf? Draw a diagram showing different parts of a leaf.
Name any two types of stem modifications, giving one example for each type.
Name the two parts of a stamen. State the functions of each of these two parts.
What are the functions of a fruit?
Answers
Answer:
Roots perform the following functions: Roots absorb water and nutrients from the soil. They anchor the plant firmly. They help in storing food and nutrients. Roots transport water and minerals to the plant.
Stem. It functions as a skeleton by constituting a major part of the shoot system and firmly supports the other components like leaves, buds, flowers and fruits. The main stem originates through the direct prolongation of tigellum of the embryo and gives rise to the lateral stems, comprising leafy appendages, buds etc.
Taproot penetrates deep into the soil, while a fibrous root is shallow and does not penetrate as deeply. A taproot is the differentiated primary root of the plant, while the fibrous root is not the differentiated primary root of the plant. ... Taproot is found in dicots, while a fibrous root is found in monocots.
Parts of a Leaf With Their Structure and Functions
Petiole. It is the stalk that connects a leaf to the stem of the plant, it is made of complex conducting tissues called vascular tissues. ...
Leaf Base. It is the lowermost part of a leaf, which is closest to the petiole. ...
Leaf-blade or Lamina.
Rhizome: It is fleshy, non-green underground
Corm: It is a condensed form of rhizome growing in vertical direction.
The stamen is made up of two parts: the anther and filament. The anther produces pollen (male reproductive cells). The filament holds the anther up. During the process of fertilization, pollen lands on the stigma, a tube grows down the style and enters the ovary.
Fruit
Purpose of a fruit. The main purpose of fruit is to protect seeds during development. ...
Fruit anatomy. Fruits contain seeds and a number of protective outer layers that can collectively be known as the pericarp