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Excretion in protozoa and excretory structure and function in annelida?
Anonymous
Jan 2
Excretion in protozoa and excretory structure and function in annelida?
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Jan 2
Excretion in Protozoa:
Protozoa are single-celled organisms that excrete waste products through simple diffusion. They do not possess specialized excretory organs or structures. Waste materials, such as ammonia and carbon dioxide, are produced as byproducts of cellular metabolism. These waste products diffuse out of the cell membrane into the surrounding environment.
Excretory Structure and Function in Annelida:
Annelida is a phylum of segmented worms that possess specialized excretory structures called nephridia. Nephridia are tubular structures found in each segment of the body. They function to remove metabolic waste products, excess water, and ions from the body.
The nephridia consist of three main parts: the nephrostome, the tubule, and the nephridiopore. The nephrostome is a ciliated funnel-like structure that collects waste materials and excess fluids from the coelomic cavity. The collected waste then passes through the tubule, where reabsorption of useful substances, such as glucose and amino acids, occurs. Finally, the waste is expelled through the nephridiopore, which is an external opening located on the body surface.
The excretory function of nephridia in annelids helps maintain osmotic balance, remove nitrogenous waste products (such as ammonia or urea), and regulate the overall fluid volume within the body.
Protozoa are single-celled organisms that excrete waste products through simple diffusion. They do not possess specialized excretory organs or structures. Waste materials, such as ammonia and carbon dioxide, are produced as byproducts of cellular metabolism. These waste products diffuse out of the cell membrane into the surrounding environment.
Excretory Structure and Function in Annelida:
Annelida is a phylum of segmented worms that possess specialized excretory structures called nephridia. Nephridia are tubular structures found in each segment of the body. They function to remove metabolic waste products, excess water, and ions from the body.
The nephridia consist of three main parts: the nephrostome, the tubule, and the nephridiopore. The nephrostome is a ciliated funnel-like structure that collects waste materials and excess fluids from the coelomic cavity. The collected waste then passes through the tubule, where reabsorption of useful substances, such as glucose and amino acids, occurs. Finally, the waste is expelled through the nephridiopore, which is an external opening located on the body surface.
The excretory function of nephridia in annelids helps maintain osmotic balance, remove nitrogenous waste products (such as ammonia or urea), and regulate the overall fluid volume within the body.
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