Introduction to Plant Tissues

The video tutorial covers plant tissues, dividing them into meristematic and permanent tissues. Meristematic tissues are actively dividing, while permanent tissues are differentiated. Meristems are categorized into primary, secondary, and intercalary types. Permanent tissues are either simple or complex, with simple tissues including parenchyma, collenchyma, and sclerenchyma. Vascular tissues, comprising xylem and phloem, are essential for transport within plants. Xylem is responsible for water and mineral transport, while phloem transports food.

What is the primary function of meristematic tissues in plants?

• To store nutrients

• To transport water and minerals

• To provide structural support

• To facilitate growth through cell division

Which type of meristem is responsible for the elongation of internodes in monocots?

• Secondary meristem

• Apical meristem

• Intercalary meristem

• Lateral meristem

What characteristic distinguishes collenchyma from parenchyma?

• Dead cells with no intercellular spaces

• Presence of lignin

• Thickened cell walls at the corners

• Ability to conduct photosynthesis

Which type of simple permanent tissue is known for providing mechanical support and is composed of dead cells?

• Sclerenchyma

• Collenchyma

• Parenchyma

• Xylem

What is the primary role of xylem in plants?

• Transporting food

• Transporting water and minerals

• Providing flexibility

• Storing nutrients

Which component of xylem is responsible for forming a continuous canal for water movement?

• Xylem parenchyma

• Tracheids

• Vessels

• Xylem fibers

What is the function of companion cells in phloem?

• Assisting sieve tubes in transporting food

• Providing mechanical support

• Facilitating photosynthesis

• Storing water