Question

Почему клетки растений неодинаковы

Answer 1

В зависимости от выполняемой функции клетки будут иметь разное строение.
почему?
в клетках фотосинтезирующей ткани будут иметься хлоропласты.

Answer 2

Why are plant cells not identical?

Plant cells are not identical because they have different structures and perform different functions within the plant. Each type of plant cell is specialized to carry out specific tasks necessary for the plant's survival and growth. Here are some reasons why plant cells are not identical:

1. Cell Types: Plants have different types of cells, each with its own unique structure and function. Some of the major types of plant cells include parenchyma cells, collenchyma cells, and sclerenchyma cells. Parenchyma cells are involved in photosynthesis, storage, and secretion. Collenchyma cells provide support to young plant parts. Sclerenchyma cells provide mechanical support and protection to the plant.

2. Cell Structures: Plant cells have distinct structures that enable them to carry out specific functions. For example, chloroplasts are present in plant cells and are responsible for photosynthesis. Vacuoles, which are large fluid-filled sacs, help in storing water, nutrients, and waste products. The cell wall, made of cellulose, provides rigidity and support to the plant cell.

3. Cell Functions: Different plant cells perform different functions. For example, leaf cells are specialized for photosynthesis, while root cells are specialized for absorption of water and nutrients from the soil. Stem cells provide support and transport water and nutrients throughout the plant. Flower cells are involved in reproduction.

4. Cell Differentiation: During the growth and development of a plant, cells undergo a process called cell differentiation. This process involves the specialization of cells into different types with specific functions. Cell differentiation is regulated by genetic factors and environmental cues.

It is important to note that while plant cells have different structures and functions, they are all derived from a single fertilized egg cell through cell division and differentiation. This process ensures the growth and development of a complex plant organism.