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?
How do plants excrete their waste products?
Which of the following options best describes a component of a flower's reproductive system?
Since parenchyma tissue mainly stores food and other materials, its cells require enough internal space. Therefore, parenchyma cells are generally ________.
A botanist observes a dormant seed with no visible growth or movement. How can the botanist determine whether the seed is alive?
To increase the width or girth of a tree trunk, cells must divide around the stem in a ring-like manner. Which tissue performs this function?
What does the splitting of water molecules during photosynthesis produce?
Which type of plant movement is caused by growth in response to a stimulus?
In plants, growth is restricted to specific regions because of the presence of dividing tissues, which are also known as __________.
Which of the following is a type of nutrition?
I. Heterotrophic
II. Autotrophic
Fungi are always
Which of the following does NOT form an essential part of the process of photosynthesis?
Organisms that generate energy using light are:
Amarbel ( Cuscuta ) is a