STRUCTURE AND FUNCTION OF INVERTEBRATES

Paper Code: 
24DZOL713
Credits: 
4
Contact Hours: 
60.00
Max. Marks: 
100.00
Objective: 
Course objectives: 
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

24DZOL

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, 

Demonstration,, 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: 
ESSENTIAL READING: 
● 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: 
2024-2025
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