GATE Mapping | Biochemistry - Concepts and Question Practice | GATE XL/BT 2026 | IFAS - Life science

This video is a comprehensive educational session on Biochemistry, specifically tailored for students preparing for the GATE 2026 (Life Sciences XL/BT) exam. Hosted by Dr. Kailash Choudhary, the lecture focuses on key concepts of lipids, fatty acids, and includes practice questions to map out essential topics for the upcoming exam.

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🎯 Target Audience: This video is highly beneficial for students preparing for:
🚀 CSIR NET Life Science (June 2026)
🚀 GATE Biotechnology (BT) & Life Sciences (XL)
🚀 DBT JRF
🚀 MH SET, WB SET, K SET, & other State Eligibility Tests
🚀 M.Sc. & Ph.D. Entrance Exams

Key Time Stamps
[00:00] - Introduction: Welcome to the Biochemistry Lecture 2 and announcements regarding upcoming batches and Republic Day offers.
[01:55] - What are Lipids? Definition of lipids as esters of fatty acids and polyhydroxy alcohols.
[02:57] - Chemical Composition: Discussion on the C, H, and O ratios in lipids and why they are highly reduced compared to carbohydrates.
[03:31] - Biological Roles: Lipids as energy reserves, structural components of membranes, and their roles in cell signaling.
[06:40] - Saturated Fatty Acids: Explanation of linear chains, high melting points (TM), and their lack of double bonds.
[07:40] - Unsaturated Fatty Acids: Introduction to fatty acids with one or more double bonds.
[07:56] - Cis vs. Trans Orientation: How double bonds naturally occur in the 'cis' form in biological systems.
[08:31] - Structural Impact: Discussion on how "kinks" or "bents" in unsaturated chains prevent tight packing and affect membrane fluidity.
[10:00] - Omega-3 and Essential Fatty Acids: Explanation of Polyunsaturated Fatty Acids (PUFAs) and those that must be obtained from the diet.
[02:17:27] - Exam Strategy: Closing advice on GATE preparation, chemistry importance for Life Science students, and practice routines.
[02:18:20] - Addressing Syllabus Changes: Discussion on CSIR NET syllabus updates and why students shouldn't panic about extra units.

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