Podcast
Questions and Answers
Which of the following structures is responsible for the elimination of waste products in certain protozoa?
Which of the following structures is responsible for the elimination of waste products in certain protozoa?
- Corona
- Nematocyst
- Contractile vacuole (correct)
- Flame cell
What is a primary characteristic of nematodes?
What is a primary characteristic of nematodes?
- Radial symmetry
- Segmentation
- Presence of a shell
- Pseudocoelom (correct)
In sponges, which type of cell is responsible for the creation of water currents?
In sponges, which type of cell is responsible for the creation of water currents?
- Sclerocytes
- Pinacocytes
- Choanocytes (correct)
- Amoebocytes
Which term describes the two distinct body forms seen in cnidarians?
Which term describes the two distinct body forms seen in cnidarians?
What is the primary function of nematocysts in cnidarians?
What is the primary function of nematocysts in cnidarians?
Which mechanism of support is primarily found in poriferans?
Which mechanism of support is primarily found in poriferans?
Which phylum is characterized by having a flat body without a coelom?
Which phylum is characterized by having a flat body without a coelom?
Which of the following best describes the reproduction mechanism in sponges?
Which of the following best describes the reproduction mechanism in sponges?
Flashcards
Cnidaria vs. Ctenophora
Cnidaria vs. Ctenophora
Cnidarians have stinging cells (nematocysts), while Ctenophores have comb-like plates for movement. They differ in their symmetry and feeding mechanisms.
Nematode characteristics
Nematode characteristics
Nematodes are roundworms with a complete digestive system, pseudocoelom, and no segmentation.
Sponge cell types
Sponge cell types
Sponges have specialized cells like choanocytes (for filter feeding), amoebocytes (for transport), and pinacocytes (for support).
Protozoan feeding
Protozoan feeding
Signup and view all the flashcards
Contractile vacuole
Contractile vacuole
Signup and view all the flashcards
Corona (feeding)
Corona (feeding)
Signup and view all the flashcards
Acanthocephala structure
Acanthocephala structure
Signup and view all the flashcards
Sponge reproduction
Sponge reproduction
Signup and view all the flashcards
Study Notes
ZOOL 101: LOWER INVERTEBRATES - UNIVERSITY EXAM
- Exam Date: Thursday, 13/12/2018
- Exam Time: 2:30 PM - 4:30 PM
- Exam Duration: 2 hours
- Instructions:
- Answer all questions in Section A.
- Answer any two questions in Section B.
- Do not write anything on the question paper.
SECTION A (30 Marks)
- Question 1 (5 marks): Distinguish between Cnidaria and Ctenophora phyla.
- Question 2 (5 marks): Outline five characteristics of nematodes.
- Question 3 (5 marks): Describe five types of cells found in sponges.
- Question 4 (5 marks): Explain the feeding mechanism in protozoa, including examples.
- Question 5 (5 marks): State the functions of contractile vacuole, corona, flame cell, cysts, and nematocysts, giving examples.
- Question 6 (5 marks): Diagrammatically illustrate the structure of Acanthocephala .
SECTION B (40 Marks)
- Question 7 (14 + 6 marks):
- (a) Explain sponge reproduction.
- (b) Describe support mechanisms in poriferans.
- Question 8 (4 + 16 marks):
- (a) Explain dimorphism in cnidarians.
- (b) Classify phylum Cnidaria, providing examples.
- Question 9 (8 + 12 marks):
- (a) Discuss evolutionary advancements of roundworms over flatworms.
- (b) Classify phylum Platyhelminthes.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Prepare for your ZOOL 101 exam on Lower Invertebrates with this comprehensive quiz. Covering various phyla, characteristics, and biological mechanisms, this exam will test your understanding of key concepts in invertebrate zoology. Ensure you are well-versed in the structure and functions of different invertebrate organisms.
