AP BIOLOGY

Detailed explanation-1: -The middle lamella is a pectin layer which cements the cell walls of two adjoining cells together. It is the first formed layer which is deposited at the time of cytokinesis. The cell plate that is formed during cell division itself develops into middle lamella.

Detailed explanation-2: -Plant cells undergoing cytokinesis (cytoplasmic division) form a cell plate in the center of the phragmoplast. The phragmoplast consists of both cytoskeletal and membranous elements.

Detailed explanation-3: -Cytokinesis is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells.

Detailed explanation-4: -Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells. Because this process is so critical, the steps of mitosis are carefully controlled by certain genes.

Detailed explanation-5: -Cytokinesis in plant cells involves the formation and insertion of a new cell wall that separates daughter nuclei after mitosis. The deposition of the new wall is regulated by a structure called the phragmoplast which contains microtubules, actin filaments and membranes.