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šŸ“– BSc Zoology Second Semester Notes (DU)

These BSc Zoology 2nd Semester Notes for Delhi University (DU) cover the full syllabus perfectly. Each unit includes exam-oriented explanations, diagrams, and important questions based on previous DU exams to help Zoology Honours students prepare effectively.

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šŸ“‹ BSc Zoology (Hons.) Semester 2 Syllabus Overview

šŸ“„ Download Official DU Syllabus PDF

The second semester of BSc Zoology (Hons.) introduces students to major invertebrate groups, biochemical molecules essential for life, and physiological control systems in humans. The core subjects include:

šŸ¦‘ DSC-4 Non-Chordata (Coelomates): Includes Annelida, Arthropoda and onychophora, Mollusca, and Echinodermata.
🧬 DSC-5 Fundamentals of Biomolecules: Covers Carbohydrates, Lipids, Proteins, Nucleic Acids and Enzymes.
🧠 DSC-6 Human Physiology: Focuses on the Nervous System and sense organs, Muscles, Endocrine and Reproductive System.

Chapter-wise DU BSc Zoology 2nd Semester Notes, Important Questions & PYQs

(DSC-4): Non-Chordata: Coelomates
Unit I: Annelida
Important Questions

Topics Covered: General characteristics and classification of Annelida; Excretion in Annelida; Evolution of coelom and metamerism.

Unit II: Arthropoda and Onychophora
Important Questions

Topics Covered: General characteristics and classification; Vision and Respiration in Arthropoda; Metamorphosis in insects; Evolutionary significance of Onychopora.

Unit III: Mollusca
Important Questions

Topics Covered: General characteristics and classification; Respiration in Mollusca; Torsion and Detorsion in Gastropoda; Pearl formation in bivalves.

Unit IV: Echinodermata
Coming Soon
šŸ“ Previous year questions

DU previous year question papers (PYQ) for BSc Zoology second semester Non Chordata exam.

(DSC-5): Fundamentals of Biomolecules
Unit I: Carbohydrates
Important Questions

Topics Covered: Structure and biological importance: with emphasis on aldose, ketose, chiral centre, polarised Light, Fischer nomenclature, Haworth projection formula.

Unit II: Lipids
Important Questions

Topics Covered: Structure and Significance: Physiologically important saturated and unsaturated fatty acids, triacylglycerols, phospholipids, glycolipids, steroids.

Unit III: Proteins
Coming Soon
Unit IV: Nucleic Acids
Coming Soon
Unit V: Enzymes
Coming Soon
šŸ“ Previous year questions

DU previous year question papers (PYQ) for BSc Zoology second semester Biomolecules exam.

(DSC-6): Human Physiology-Control and Coordination Systems
Unit I: Nervous System and Sense Organs
Important Questions

Topics Covered: Structure of neuron, resting membrane potential, origin and conduction of action potential across the myelinated and unmyelinated nerve fibers.

Unit II: Muscle Physiology
Important Questions

Topics Covered: Mechanism of muscle contraction; Sliding Filament theory, Excitation-Contraction coupling, Characteristics of muscle twitch.

Unit III: Endocrine System
Coming Soon
Unit IV: Reproductive System
Coming Soon
šŸ“ Previous year questions

DU previous year question papers (PYQ) for BSc Zoology second semester Human Physiology exam.

ā“ Frequently Asked Questions

The second semester of BSc Zoology at Delhi University includes Non-Chordata: Coelomates, Fundamentals of Biomolecules, and Human Physiology focusing on control and coordination systems.

Yes. These notes are structured exactly according to the latest Delhi University BSc Zoology (Hons.) syllabus and include unit-wise explanations, diagrams, and important questions.

Yes, the notes include clear and well-labelled diagrams wherever required, such as structures, physiological processes, and biological systems. These diagrams are designed to help students write better answers in exams and score higher marks.

Yes. For subjects like Biochemistry and Biomolecules, the notes include important structures, pathways, and key mechanisms that are commonly asked in university exams and helps to score better.

Yes. The notes are specifically designed according to the Delhi University BSc Zoology (Hons.) syllabus, making them relevant for DU students preparing for their semester exams.

The best way to prepare for DU Zoology exams is to focus on clear, structured notes and important exam questions. Start by studying the complete unit-wise notes to understand the concepts properly. After that, go through the most important questions and previous year questions, which help you understand the exam pattern and frequently asked topics. If you cover the notes thoroughly and revise the important questions provided on this website, you will be well prepared for your semester exams.

Yes! Important previous year questions (PYQs) from past Delhi University Zoology exams are integrated into the units for download for better exam preparation.

If you have any doubts related to the notes, bsc zoology syllabus or any other general doubt, you can reach out through the following platforms:

  • šŸ“§ Email: sayheyshubh@gmail.com
  • šŸ“ø Instagram: @sayheyshubh (DM me anytime)
You can also join the Telegram community, where many students discuss topics, share resources, and help each other with doubts.

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