How do sponges obtain food and water?
Sponges are heterotrophs, which obtain their food by straining food particles from water. They feed on minute organism entered along with the water molecules. Sponges lack specialized digestive and circulatory system. Collar cells present inside the central cavity, traps the food particles and digest them.
How do sponges feed and obtain energy?
Sponges do not have a nervous, digestive or circulatory system. They rely on keeping up a constant water flow through their bodies to obtain food and oxygen and to remove wastes.
How does a sponge obtain its nutrient?
Overview: The vast majority of sponges are heterotrophic filter feeders, meaning that they obtain their food by filtering water into a cavity of their body and extracting any organism that they can use for nutrition.
How do sponges eat and digest food?
The sponges draw water carrying food particles into the spongocoel using the beating of flagella in the choanocytes. The food particles are caught by the collar of the choanocyte and brought into the cell by phagocytosis. Digestion of the food particle takes place inside the cell.
How do sponges feed and respire?
Sponges Respire Through Diffusion Sponges do not have complex digestive, circulatory or respiratory systems to move nutrients and oxygen around their bodies. Rather, each cell is independent and performs its own oxygen, food and waste processes using diffusion.
What type of digestive system do sponges have?
Lacking a true digestive system, sponges depend on the intracellular digestive processes of their choanocytes for their energy intake. The limit of this type of digestion is that food particles must be smaller than individual cells.
How do you respire and feed a sponge?
Sponges Respire Through Diffusion Sponges do not have complex digestive, circulatory or respiratory systems to move nutrients and oxygen around their bodies. Rather, each cell is independent and performs its own oxygen, food and waste processes using diffusion.
Do sponges have a digestive system?
Phylum Porifera is a group of simple animals that includes the sponges. Porifera have no internal organs, nervous tissue, circulatory system, or digestive systems, making them the most primitive of the multi-cellular animals.
How do sponges transport nutrients within their bodies?
How do sponges transport nutrients within their bodies? Their mobile amoebocytes transport food molecules from cell to cell.
Why is digestion process only intracellular in sponges?
Sponges have a cellular level of organisation and thus, do not possess any organ system. Due to the absence of an organ, the digestion is intracellular. They use choanocytes to trap food and digestion take place in the food vacuole.