In earthworms many Enzymes are present
Correct answer: D. Pharyngos mass
- A. Typhlosole
- B. Intestinal caeca
- C. Esophagus
- D. Pharyngos mass
Explanation
The pharynx of an earthworm, particularly the pharyngeal mass, is where various digestive enzymes are secreted. These include protease, which breaks down proteins into amino acids, and mucin, which aids in softening the food. The other structures mentioned, such as the typhlosole, intestinal caeca, and esophagus, have roles in the digestive process but are not primarily responsible for enzyme production. The typhlosole increases absorptive surface area, the intestinal caeca have a minor role in digestion, and the esophagus is merely a passageway for food.
This question appeared on the ETEA MDCAT 2006 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Kingdom Animalia
Animals are multicellular, heterotrophic eukaryotes whose cells lack cell walls and chloroplasts, with specialised tissues in most groups. Coverage includes body symmetry, tissue layers, coelom, segmentation and levels of organisation, plus major phyla such as Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Mollusca and Chordata.
Practise Biodiversity and Variety of Life
3,130 free Biodiversity and Variety of Life MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.