What is the primary function of stomata in plant leaves during photosynthesis?
Allow gaseous exchange
Stomata are small pores present on the surface of leaves that allow the exchange of gases (CO₂ in, O₂ out) needed for photosynthesis, and also permit transpiration.
Hence, the correct answer is Allow gaseous exchange (D).
Which of the following statements is/are correct regarding vegetative propagation?
Statement A: Root, stem and leaves develop into new plants under appropriate conditions.
Statement B: Vegetative propagation is used in sugarcane, roses and grapes.
Which of the following plant nutrients is supplied from air?
The parenchyma cells in plants are:
Which of the following options best describes a component of a flower's reproductive system?
Complete the analogy.
Meristematic Tissue : Dividing capacity :: Simple Permanent Tissue : _________
During a histological examination of a plant’s leaf stalk, elongated cells with irregularly thickened corners and very little intercellular space are observed. Which simple permanent tissue is present and what is its primary function in this region?
In geotropism, what does gravity act as?
How do plants excrete their waste products?
Complete the analogy. Xylem : Water Transport :: Phloem : ______.
In a habitat recently affected by drought, which feature would most likely allow gymnosperms to persist when other plants fail?
Which of the following is a type of nutrition?
I. Heterotrophic
II. Autotrophic
Part of N 2cycle that is opposed to N 2fixation is:
Which among the following is the reproductive part of a plant?
Fibres (Adventitious) roots are found in :
In which Part of the flower does Meiosis take place ?