Structure and function of Invertebrates

Paper Code: 
25DZOL713
Credits: 
4
Contact Hours: 
60.00
Max. Marks: 
100.00
Objective: 
This course will enable the students to –
1. Give an insight into the structure and mechanism of various life processes found in invertebrates.
2. With the knowledge of basis of classification and detailed comparative study of the various physiological functions in an invertebrate body belonging to diverse phyla, students must be able to find affinities amongst each group
3. The study on Minor phyla and the various larval forms will be adding value to their concepts.
 
Course Outcomes: 

Course

Learning outcomes (at course level)

Learning and teaching strategies

Assessment Strategies

Course Code

Course Title

 

 

 

 

 

 

 

 

 

 

25DZOL

713

 

 

 

 

 

 

 

 

Structure and Function of

Invertebrates THEORY

CO:205 Able to explain the basis of classification in Invertebrates

CO:206 Judge the structure and physiological functions of Invertebrates

CO:207 Understand the evolutionary advancement of digestion, locomotion, respiration, nervous and excretory functions in different invertebrate phylums.

CO:208 Illustrate the

significance of Larval forms of invertebrates and can correlate their characteristic features with their adult forms.

CO:209           Correlate                             the characteristics,      features                        and significance of Minor Phyla; as well as their role in the ecosystem CO:210 Contribute effectively in course-specific interaction

Approach in teaching: Discussion, Demonstratio n,, Project, Field

Trip

Learning activities for the students: Field activities, Simulation, Presentation, Giving task

Class test Semester end

examinations, Quiz, Assignments, Seminar Presentation Individual

and group projects

 

12.00
Unit I: 
Basis of classification
Basis of classification (brief account)-: Symmetry, coelom, segmentation, embryogeny and level of organization Locomotion Flagellar and ciliary movement in protozoa Hydrostatic movement in Coelenterate, Annelida and
Echinodermata
 
12.00
Unit II: 
Nutrition, digestion & respiration
Nutrition and digestion Filter feeding in Polychaeta, Mollusca and Echinodermata
Respiration Organs of respiration – gills, lungs and trachea Respiratory Pigments Mechanism of respiration 
 
12.00
Unit III: 
Excretion & Nervous system
Organs of excretion: coelom, coelomoducts, nephridia and Malpighian Tubules Mechanism of excretion Excretion and osmoregulation
Trends in Neural Evolution
Primitive nervous system -Coelenterata and Echinodermata
Advanced nervous system- Annelida, Arthropoda (Crustacean and Insecta)and Mollusca(Cephalopoda)
 
12.00
Unit IV: 
Invertebrate larvae
Larval forms of free living invertebrates
Larval forms of parasites
Significance of larval forms
 
12.00
Unit V: 
Minor Phyla

Ctenophora, Rhyncocoela, Entoprocta, Rotifera, Bryozoa, Phoronida: Concept and significance Organization and general characters

Essential Readings: 
● Invertebrate structure and function. ; Barrington.E.J.W. Thomas Nelson & Sons Ltd. London
● The Invertebrates; Hyman.L.H.; McGraw Hill Co NewYork
● Invertebrate Zoology,III edition.;Barnes.R.D.
 
SUGGESTED READING:
● The invertebrates. Vol.1. Protozoa through Ctenophora, Hyman, L.H. McGraw Hill Co., NewYork.
● Invertebrate structure and function. Barrington, E.J.W. Thomas Nelson and SonsLtd.London.
● Evolution of Metazoan life cycle, Jagerstain, G. Academic Press, New York &London.
● The Invertebrates. Vol.8. Hyman, L.H. McGraw Hill Co., New York. and London
● Invertebrate Zoology Barnes, RD. W.B.Saunders Co.,Philadelphia
● A Biology of higher invertebrates, Russel-Hunter, WD. McMillan Co. Ltd.,London
● The Invertebrates srnallercolomate groups, Vol.5. Hyman, L.H. McGraw Hill Co., New York.
● Animal Parasitism. Cad. C.P.Prentice Hall Inc., NewJersey.
● Student Text Book of Zoology. Vol.I.II and III. Sedgwick.A. Central Book Depot, Allahabad. 
 
Academic Year: 
2025-2026
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