Growth in an organism is carefully controlled by regulating the cell cycle. In plants, the roots continue to grow as they search for water and nutrients. These regions of growth are good for studying the cell cycle because at any given time, you can find cells that are undergoing mitosis.
The root apex is a region of constant cell division (mitose) since it's an area associated with growth. Because of that there will be many cells undergoing mitosis and the cromossomes are easy to see when dyed.
The replication of genetic material takes place during the S phase of the cell cycle.
The cell cycle is the process in which cells use to divide and replicate.
Synthesis of DNA and many other cell organells take place during S-phase of cell cycle.
A metaphase cell is a stage in the cell cycle. It happens when a chromosome is most highly condensed and hence it is easiest to distinguish and to study the cell.
mitochondrion
The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication (replication) that produces two daughter cells. In prokaryotes which lack a cell nucleus, the cell cycle occurs via a process termed binary fission.
The Krebs cycle takes place in the mitochondrial matrix of a cell, not in the chloroplast.
The cell cycle takes place in the nucleus of the cell. It consists of different phases, including interphase (G1, S, G2) where the cell grows and prepares for division, and mitosis where the cell divides into two daughter cells.
Not all parts of the plant are actively dividing. They have differentiated cells that may may be living or dead. only a small fractions of the cells are actively dividing. These cells are called as meristem. The tip of the roots are actively dividing and thus they are best suitable of studying mitosis.
The study of cells is called cell biology or cytology. It focuses on the structure, function, and life cycle of cells, including their organization and interactions within tissues and organisms.
The Krebs cycle takes place in the matrix of the mitochondrion.