Question

Оргоны передвижения спирогиры

Answer 1

К переднему, несколько вытянутому краю клетки прикрепляются два жгутика, благодаря которым клетка способна передвигаться толще воды. 

Answer 2

Organs of Movement in Spirogyra

Spirogyra is a type of filamentous green algae that belongs to the division Chlorophyta. It is commonly found in freshwater environments such as ponds, lakes, and streams. Spirogyra has several unique features, including specialized organs of movement.

1. Cytoplasmic Streaming: One of the main organs of movement in Spirogyra is cytoplasmic streaming. Cytoplasmic streaming refers to the movement of cytoplasm within the cells of Spirogyra. This movement is facilitated by the presence of numerous cytoplasmic strands called endoplasmic reticulum. The cytoplasmic streaming helps in the distribution of nutrients and other essential substances throughout the organism.

2. Contractile Vacuoles: Spirogyra also possesses contractile vacuoles, which are responsible for regulating water balance within the cells. These vacuoles collect excess water from the cytoplasm and periodically contract to expel it out of the cell. This process helps maintain the osmotic balance and prevent the cells from bursting due to excessive water uptake.

3. Flagella: Unlike many other algae, Spirogyra does not possess flagella. Flagella are whip-like appendages that help in locomotion in many other organisms. Instead, Spirogyra relies on other mechanisms, such as cytoplasmic streaming, for movement.

In summary, Spirogyra utilizes cytoplasmic streaming and contractile vacuoles as its main organs of movement. These mechanisms allow for the distribution of nutrients and maintenance of water balance within the cells. While Spirogyra does not possess flagella for locomotion, it has evolved alternative methods to facilitate movement in its environment.

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