The Gut (Grade 11 NSC Matric Life Sciences): Flashcards
📚Flashcards
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10 cards from this deck
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Practise the cards
10 cards from this deck
Blind-ending gut
Blind-ending gut
Single opening for both food intake and waste removal
Through-gut system
Through-gut system
Two openings: mouth for food, anus for waste
Acoelomate
Acoelomate
Animals without a true body cavity
Coelomate
Coelomate
Animals with a true body cavity (coelom)
Pseudocoelomate
Pseudocoelomate
Animals with a false body cavity (pseudocoel)
Gastrovascular cavity
Gastrovascular cavity
Simple digestive chamber in single-opening systems
Advantage of through-gut
Advantage of through-gut
Allows continuous feeding and digestive specialisation
Example of pseudocoelomate
Example of pseudocoelomate
Roundworms (nematodes)
Peristalsis
Peristalsis
Wave-like muscular contractions that push food through gut
Prerequisite for true coelom
Prerequisite for true coelom
Animal must be triploblastic (have three germ layers)