In a growing plant, the first phase during the process of growth is -a)Cell divisionb)Cell enlargementc)Cell differentiationd)Cell maturationCorrect answer is option 'A'. Can you explain this answer?

Question

Answer

Phases Of Plant Growth

Meristematic Phase

The cells in the root and shoot apex of a plant are constantly dividing. They represent the meristematic phase of growth. The cells in these regions have large nuclei and are rich in protoplasm and their cell walls are thin and contain cellulose.

Elongation Phase

The cells in the zone just after the meristematic region represent the phase of elongation. The characteristics of cells in this zone are cell enlargement, increased vacuole formation and new cell wall deposition.

Maturation Phase

Just close to the phase of elongation, but away from the apex lies the phase of maturation. The cells in this region reach their maximum size with respect to their protoplasm and cell wall thickening.

Answer

Phases Of Plant Growth

Meristematic Phase
The cells in the root and shoot apex of a plant are constantly dividing. They represent the meristematic phase of growth. The cells in these regions have large nuclei and are rich in protoplasm and their cell walls are thin and contain cellulose.

Elongation Phase
The cells in the zone just after the meristematic region represent the phase of elongation. The characteristics of cells in this zone are cell enlargement, increased vacuole formation and new cell wall deposition.

Maturation Phase
Just close to the phase of elongation, but away from the apex lies the phase of maturation. The cells in this region reach their maximum size with respect to their protoplasm and cell wall thickening.

Answer

In a growing plant, first off all, the meristematic cells starts dividing adding more no of cells to the plant body. then, these divided cells grows in size and become mature. after attainment of maturity, the cells might get specialized in certain functions (by a process known as differentiation)

Answer

As we all know that growing plants have different phases-
1.Meristematic phase-
in which simply a cell divide or cell division takes place.
2.elongation zone-
in this phase cell enlarge its size.
3.maturation zone-
in this phase a cell becomes mature.

Answer

Introduction:
In the process of plant growth, several phases occur that contribute to the overall development of the plant. One of the earliest phases in this process is cell division. Cell division plays a crucial role in the growth and development of plants by increasing the number of cells, allowing for the formation of tissues and organs.

Explanation:
1. Cell division:
Cell division refers to the process by which a single cell divides into two or more daughter cells. It is the first phase during the process of growth in a plant. Cell division occurs in the meristematic tissues, which are found in the growing regions of the plant, such as the root tips and shoot tips.

- The meristematic tissues contain actively dividing cells called meristems, which are responsible for the production of new cells.
- During cell division, the parent cell undergoes a series of steps, including DNA replication, chromosome segregation, and cytokinesis, resulting in the formation of genetically identical daughter cells.
- These daughter cells can then further undergo cell division, contributing to the overall growth and development of the plant.

2. Cell enlargement:
After cell division, the newly formed cells undergo cell enlargement, which is the second phase in the process of growth. During cell enlargement, the cells increase in size, allowing for the expansion and elongation of plant tissues.

- Cell enlargement is primarily driven by the uptake of water into the cells, which causes them to swell and stretch.
- Additionally, the deposition of cell wall materials, such as cellulose, also contributes to cell enlargement.
- As the cells enlarge, they undergo changes in shape and structure, leading to the formation of different types of tissues and organs in the plant.

3. Cell differentiation:
Following cell enlargement, the next phase in plant growth is cell differentiation. During cell differentiation, the cells acquire specialized structures and functions, allowing them to perform specific tasks within the plant.

- Cell differentiation is controlled by various factors, including hormonal signals, gene expression, and environmental cues.
- Differentiation leads to the formation of different types of plant tissues, such as vascular tissues, epidermal tissues, and ground tissues.
- These specialized tissues work together to perform various functions, such as transporting water and nutrients, providing structural support, and facilitating photosynthesis.

4. Cell maturation:
Cell maturation is the final phase in the process of growth, where the cells fully develop and become fully functional.

- During cell maturation, the cells undergo changes in their cytoplasmic contents and develop specific organelles and structures necessary for their function.
- Once the cells have matured, they become part of the mature plant tissue and contribute to the overall functioning of the plant.

Conclusion:
In summary, the first phase during the process of growth in a plant is cell division. Cell division allows for the increase in the number of cells, providing the foundation for subsequent phases such as cell enlargement, cell differentiation, and cell maturation. These phases work together to drive the overall growth and development of the plant.

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