AP BIOLOGY

Detailed explanation-1: -Primary and secondary growth are involved in increasing the size of the plant. Both primary growth and secondary growth occur in woody plants. The meristematic tissue is involved in both primary and secondary growth of the plant.

Detailed explanation-2: -Primary growth occurs at the apical meristem (a meristem located at the tip of a stem). A meristem is a region of undifferentiated cells from which new cells arise through cellular division. Secondary growth is an increase in thickness or girth of the plant body due to activity of lateral meristems.

Detailed explanation-3: -Primary meristems are derived from promeristem, and are responsible for primary growth. Example: Protoderm. On the other hand, secondary meristems originate from primary tissues and are involved in secondary growth. It is responsible for a growth in length.

Detailed explanation-4: -1: Primary and secondary growth: In woody plants, primary growth is followed by secondary growth, which allows the plant stem to increase in thickness or girth. Secondary vascular tissue is added as the plant grows, as well as a cork layer. The bark of a tree extends from the vascular cambium to the epidermis.

Detailed explanation-5: -Primary growth occurs as a stem increases in length as a result of cell division in the shoot apical meristem. Secondary growth is characterized by an increase in thickness or girth of the plant, and is caused by cell division secondary meristems.