How does a sponge obtain and digest food?

How does a sponge obtain 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 does a sponge obtain food quizlet?

Sponges are filter feeders and retrieve their nutrition from filtering the water that enters their pores and exits their osculum. The food is captured by choanocytes and also amoebocytes who can digest it. They break down and digest food; also deliver food to other cells.

How does a sponge obtain food if it Cannot move?

Because sponges are sessile, meaning they cannot move, they filter water to obtain their food. They are, therefore, known as filter feeders. Filter feeders must filter the water to separate out the organisms and nutrients they want to eat from those they do not.

What part of the sponge transports the digested food?

In some sponges, amoebocytes transport food from cells that have ingested food particles to those that do not. For this type of digestion, in which food particles are digested within individual cells, the sponge draws water through diffusion.

How does a sponge protect itself?

The pointed sponge spicules function as one method of defense against predators. Sponges also defend themselves by producing chemically active compounds. Some of these compounds are antibiotics that prevent pathogenic bacterial infections, and others are toxins that are poisonous to predators that consume the sponge.

How do sponges obtain oxygen and eliminate co2 and other wastes?

Sponges Respire Through Diffusion Oxygen diffuses into the cells while waste products such as carbon dioxide leave the cells. This process occurs passively because the water moving over the cells has a higher oxygen concentration than the area within the cells.

How do sponges function?

Sponges are unusual animals in that they lack definite organs to carry out their various functions. The most important structure is the system of canals and chambers, called a water-current system, through which water circulates to bring food and oxygen to the sponge.

How do sponges contract?

Although sponges have no muscle tissue and are sessile organisms, they do have muscle-like cells called myocytes. Myocytes surround canal openings and porocytes. These cells are able to contract in order to regulate water flow through the body.

How does a sponge acquire and digest food?

They obtain food by filter feeding or straining food particles from water. Sponges achieve the goal of digestion through intracellular digestion where food particles are digested inside specialized cells. The cells take in the particles through phagocytosis and then digest them, expelling wastes. Click to see full answer.

How are sponges able to filter out bacteria?

Sponges are filter feeders. They pump water into their body through their pores. The water flows through a large central cavity called the spongocoel (see Figure above). As the water flows by, specialized collar cells (which are also known as choanocytes) filter out food particles such as bacteria.

How are carnivorous sponges able to capture their prey?

They capture their prey just as they do with the organic particles: waiting for the tiny animals swimming in the ocean currents to be hooked into their pores and then wrapped and swallowed. Because the carnivorous sponges would remain sessile, their prey would be nothing more than small mollusks and crustaceans

Which is part of a sponge allows it to breathe?

It consists of a cell mass in the form of a sac through which the water circulates, in which is the oxygen that allows it to breathe and the food with which it subsists.