Question:

How does a gastrovascular cavity differ from an alimentary canal? The gastrovascular cavity

Updated On: Jul 6, 2022

stores food but does not digest it.
is usually much larger.
has only one opening.
functions in digestion but not absorption.

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The Correct Option is C

Solution and Explanation

A gastrovascular cavity has a single opening

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Notes on Digestion and absorption

Concepts Used:

Digestion and Absorption - Alimentary Canal

Digestion can be defined as the process of breakdown of large, insoluble and complex food molecules into smaller ones for its absorption and circulation in the body. This process involves the usage of a variety of digestive fluids and enzymes, including saliva, mucus, bile and hydrochloric acid, among others.

Read More: Digestion and Absorption

The alimentary canal is mainly referred to as the pathway by which food enters our body and moves out through the anus after digestion. It is a tube-like structure that starts from the mouth and ends in the anus. The alimentary canal plays a primary role in human digestion and is also termed as the digestive tract.

Peristalsis is a series of wave-like muscle contractions that move food through the digestive tract.

List I		List II
A	Lipase	I	Peptide bond
B	Nuclease	II	Ester bond
C	Protease	III	Glycosidic bond
D	Amylase	IV	Phosphodiester bond

	List I (Cells)		List II (Secretion)
A	Peptic cells	I	Mucus
B	Goblet cells	II	Bile juice
C	Oxyntic cells	III	Proenzyme pepsinogen
D	Hepatic cells	IV	HCl and intrinsic factor for absorption of vitamin B12