The parenchyma cells in plants are:
living and loosely arranged with intercellular spaces
Parenchyma is the most basic and abundant simple permanent tissue in plants. Its cells are living, thin-walled and loosely packed, leaving large intercellular spaces between them.
These spaces help in gaseous exchange and storage, and parenchyma also performs photosynthesis (chlorenchyma) and buoyancy (aerenchyma).
"Dead and elongated with lignified walls" describes sclerenchyma, not parenchyma.
"Living and thickened at corners without spaces" describes collenchyma, which provides mechanical support.
Hence, parenchyma cells are living and loosely arranged with intercellular spaces.
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?
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?
Since plants prepare their own food using sunlight, they do not require a digestive organ like a stomach. Instead, they possess tissues specialized for ____.
Which of the following is a type of nutrition?
I. Heterotrophic
II. Autotrophic
Which of the following does NOT form an essential part of the process of photosynthesis?
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 :