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In the pharynx, the primary enzymes present are salivary amylase (ptyalin) and lingual lipase. Salivary amylase helps break down starches into maltose, while lingual lipase aids in digesting fats. These enzymes begin the process of chemical digestion in the mouth before food travels to the stomach.
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Explain how feeding and digestion occur in planarians?
Planarians eat by extending their pharynx to ingest food, which then moves to the gastrovascular cavity for digestion. Once in the stomach, food particles are broken down by enzymes before nutrients are absorbed into the cells lining the cavity. Waste is then excreted through the pharynx.
What is the common passageway for both respiration and digestion?
the throat. pharynx.
What structure carries both food and air?
The pharynx carries both food and air. It is a passageway at the back of the oral and nasal cavities that leads to the esophagus (for food) and the trachea (for air).
Where does the gullet and windpipe split?
They get separated in lower pharynx. That is laryngo-pharynx.
Is throat same as pharynx?
No, the throat and the pharynx are not the same. The pharynx is a muscular tube that connects the nasal cavity to the larynx and esophagus, while the throat is a more general term that can refer to the pharynx, larynx, and surrounding tissues.
Explain how feeding and digestion occur in planarians?
Planarians eat by extending their pharynx to ingest food, which then moves to the gastrovascular cavity for digestion. Once in the stomach, food particles are broken down by enzymes before nutrients are absorbed into the cells lining the cavity. Waste is then excreted through the pharynx.
What is the feeding sturcture of a planarian?
They have a mouth ventrally located in the middle of their body connected to a pharynx and a gastrvascular cavity. Their food is digested by enzymes and glides through their mouth and pharynx to the gastrovascular cavity which is somewhat a primitive stomach that delivers nutrients all over the body.
What part is the upper part of the respiratory system?
Pharynx
What is the common passageway for both respiration and digestion?
the throat. pharynx.
How do planarian eat?
Planarians eat by extending their muscular pharynx out of their mouths to engulf and ingest their prey, such as small invertebrates or organic debris. Their pharynx is able to secrete enzymes to help break down the food for digestion.
What parts of the respiratory system and digestive system overlap?
Pharynx
What are the differences in the frogs pharynx and the humans pharynx?
A frogs pharynx is twice the size of a humans
What is the purposes of the pharynx?
The pharynx is the scientific term for the throat. The pharynx is a passageway from the mouth and nose to the esophagus and larynx.
What structure carries both food and air?
The pharynx carries both food and air. It is a passageway at the back of the oral and nasal cavities that leads to the esophagus (for food) and the trachea (for air).
What is the plural form of the word pharynx?
The plural form of the word "pharynx" is "pharynges."
What is the respiratory function of the pharynx?
The pharynx carries air from the nose and mouth to the trachea. The pharynx also has functions in the digestive system.
Where does the gullet and windpipe split?
They get separated in lower pharynx. That is laryngo-pharynx.
