Every question from this NCERT chapter, with a detailed explanation.
With reference to the structure of a leaf, consider the following statements: 1. The part of the leaf by which it is attached to the stem is called the petiole. 2. The broad, green part of the leaf is called the sepal. 3. All leaves must possess a petiole. Which of the statements given above is/are correct?
Consider the following statements regarding leaf venation: 1. The design made by veins in a leaf is called leaf venation. 2. If the design is net-like on both sides of the midrib, it is called parallel venation. 3. If the veins are parallel to one another, it is called parallel venation. Which of the statements given above are correct?
With reference to the process of transpiration in plants, consider the following statements: 1. Plants release water into the air in the form of liquid droplets. 2. This process takes place primarily through the leaves. 3. Transpiration helps in the upward movement of water in the plant. Which of the statements given above are correct?
With reference to plant morphology, what is the typical relationship between leaf venation and the root system?
With reference to the root system of plants, consider the following statements: 1. In a taproot system, the main root is called the taproot and smaller roots are called lateral roots. 2. In a fibrous root system, there is one main root from which all other roots originate. 3. Roots play no role in holding the plant to the soil. Which of the statements given above is/are correct?
Consider the following statements regarding the parts of a flower: 1. Sepals are the small leaf-like structures that are prominent in a bud. 2. Petals are generally the small, green, leaf-like structures protecting the bud. 3. All flowers invariably possess petals of the same colour to attract insects. Which of the statements given above is/are correct?
With reference to the stamen of a flower, consider the following statements: 1. It is the male reproductive part of the flower. 2. It consists of three parts: the anther, the filament, and the style. 3. The number of stamens in a flower is variable across different species. Which of the statements given above is/are correct?
Consider the following statements about the pistil: 1. It is the outermost whorl of a flower. 2. It consists of stigma, style, and ovary. 3. The ovary is the lowermost and swollen part of the pistil. Which of the statements given above are correct?
Which of the following pairs is correctly matched?
Consider the following statements about roots: 1. Plants with fibrous roots typically have leaves with reticulate venation. 2. Plants with taproots typically have leaves with reticulate venation. 3. The main root in a taproot system is usually absent, replaced by a cluster of similar-sized roots. Which of the statements given above is/are correct?
What characterizes 'climbers' in the classification of plants based on growth habit?
With reference to the parts of a stamen, consider the following statements: 1. The filament is a component of the stamen. 2. The ovary is a component of the stamen. 3. The anther is a component of the stamen. Which of the statements given above is/are correct?
Consider the following statements about the function of leaves: 1. Leaves absorb a significant amount of water from the atmosphere through transpiration. 2. Leaves contain tiny pores called stomata for gaseous exchange. 3. Leaves are the primary site for food production in plants. Which of the statements given above are correct?
Which of the following is the correct sequence of parts in a pistil from the uppermost to the lowermost?
In a floral bud, which plant part is most prominent and serves to enclose the developing flower?
Which one of the following plants typically exhibits parallel venation in its leaves?
What type of root system is characteristic of a maize plant?
Consider the following statements about the structure of a flower: 1. Bell-shaped flowers typically have joined petals. 2. To see the inner parts of a bell-shaped flower, one must keep the petals intact. 3. All flowers have the same number of stamens. Which of the statements given above is/are correct?
In plant anatomy, what does the term 'lamina' refer to?
With reference to the classification of plants, consider the following statements: 1. Wheat is a herb. 2. Mango is classified as a shrub. 3. Rose is a shrub. Which of the statements given above is/are correct?
Consider the following statements regarding the function of the stem: 1. The primary function of the stem is to absorb water from the soil. 2. It bears leaves and flowers. 3. It conducts water and minerals to the leaves. Which of the statements given above are correct?
In a taproot system, what are 'lateral roots'?
Match List I with List II and select the correct answer using the code given below: List I | List II A. Hard and thick stem | 1. Creeper B. Green and tender stem | 2. Herb C. Weak stem spreading on ground | 3. Shrub D. Hard stem branching near base | 4. Tree
Match List I with List II and select the correct answer using the code given below: List I | List II A. Anther and Filament | 1. Leaf B. Stigma, Style, Ovary | 2. Stamen C. Petiole and Lamina | 3. Pistil D. Taproot and Lateral roots | 4. Root
Match List I with List II and select the correct answer using the code given below: List I | List II A. Process of making food | 1. Photosynthesis B. Loss of water as vapour | 2. Venation C. Movement of water in stem | 3. Transpiration D. Design of veins in leaf | 4. Conduction