Types and Functions of Meristems

This video tutorial explores the different types of meristems in plants, which are regions of undifferentiated cells capable of division and differentiation. It covers primary meristems, such as apical meristems, responsible for forming primary plant tissues, and secondary meristems, including axillary, floral, intercalary, and lateral meristems, which contribute to various growth processes in mature plants. The video also explains the roles of vascular and cork cambium in secondary growth, forming woody tissues and protective bark.

What are meristems primarily composed of?

• Undifferentiated cells

• Dead cells

• Photosynthetic cells

• Differentiated cells

Which type of meristem is responsible for forming the primary tissues of a plant?

• Intercalary meristems

• Lateral meristems

• Secondary meristems

• Primary meristems

Where are shoot apical meristems located?

• In the leaf axils

• In the root cap

• At the tips of shoots

• At the base of the stem

What do axillary meristems develop into?

• New branches

• Roots

• Leaves

• Flowers

Which meristem is involved in the formation of floral organs?

• Axillary meristem

• Intercalary meristem

• Lateral meristem

• Floral meristem

Where are intercalary meristems found?

• In gymnosperms

• In monocots

• In dicots

• In ferns

What is the role of intercalary meristems in grasses?

• To form new branches

• To thicken the stem

• To aid in leaf regrowth

• To produce flowers

What type of growth do lateral meristems contribute to?

• Primary growth

• Secondary growth

• Tertiary growth

• Apical growth

Which meristem is responsible for producing secondary xylem and phloem?

• Vascular cambium

• Cork cambium

• Intercalary meristem

• Axillary meristem

What does the cork cambium produce?

• Root hairs

• Cork cells

• Secondary phloem

• Secondary xylem