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Index

Cell Structure

Biological Molecules

Enzymes

Cell Membranes and Transport

The Mitotic Cell Cycle

Nucleic Acids and Protein Synthesis

Transport in Plants

Transport in Mammals

Gas Exchange

Infectious Disease

Immunity

Energy and Respiration

Photosynthesis

Homeostasis

Control and Coordination

Inheritance

Selection and Evolution

Classification, Biodiversity and Conservation

Genetic Technology

Practicals

All Exams > A Level > Biology A-Level > All Videos

All videos of Biology A-Level for A Level Exam

Cell Structure

Microscopy: Magnification, Resolution & Types of Microscopes

08:45 min

Introduction to Prokaryotic Cells

09:21 min

Eukaryotic Cell Structure & Organelles

13:47 min

Comparing Eukaryotes & Prokaryotes

12:15 min

An Overview of Cell: The Unit of Life

14:43 min

Detailed Explanation: Cell: The Unit of Life

13:28 min

Prokaryotic Cells

13:40 min

Organelles of Eukaryotic Cell

05:55 min

Eukaryotic Cells - 1

59:21 min

Eukaryotic Cells - 2

17:39 min

Plant Cell & Its Organelles

10:28 min

Cytoplasm

02:11 min

Mitochondria

03:32 min

Ribosomes

06:11 min

Cell Wall: Plasmodesmata

07:08 min

Golgi Apparatus

06:56 min

Vacuoles

02:26 min

Endoplasmic Reticulum

02:03 min

Virus Structure and Classification

11:05 min

Viral replication: lytic vs lysogenic

05:11 min

Retroviruses - Viruses

07:28 min

Subviral particles: viroids and prions

05:01 min

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Biological Molecules

Introduction to Biological Molecules: Monomers & Polymers

16:30 min

Carbohydrates: Monosaccharides

15:46 min

Carbohydrates: Disaccharides

11:34 min

Carbohydrates: Polysaccharides

10:13 min

Carbohydrates: Starch and Glycogen

10:44 min

Carbohydrates: Cellulose

13:35 min

Carbohydrates: Chitin

06:57 min

Lipids: Triglycerides

11:34 min

Lipids: Roles of Triglycerides

12:41 min

Lipids: Structure and Function of Phospholipids

13:19 min

Proteins: Structure of Amino Acids

08:23 min

Proteins: Primary and Secondary Structure

08:30 min

Proteins: Tertiary and Quaternary Structure

10:16 min

Globular Proteins

11:44 min

Fibrous Proteins

09:12 min

Protein & Lipids Tests: Biuret & Emulsion Test

03:49 min

Inorganic Ions (Part 1)

12:15 min

Inorganic Ions (Part 2)

09:46 min

Properties of Water: Hydrogen Bonding

10:37 min

Water: Specific Heat Capacity & Latent Heat (Part 1)

08:12 min

Water: Specific Heat Capacity & Latent Heat (Part 2)

09:36 min

Properties of Water: Cohesion and Adhesion

08:39 min

Properties of Water: Water as a Solvent

08:43 min

Properties of Water: Incompressibility and Density

09:42 min

Enzymes

Introduction to Enzymes

15:56 min

Enzyme Inhibitors

13:18 min

Introduction to enzymes and catalysis

06:05 min

Enzymes and activation energy

05:32 min

Induced fit model of enzyme catalysis

06:44 min

Six types of enzymes

07:04 min

Co-factors, co-enzymes and vitamins

05:21 min

Enzymes and their local environment

04:31 min

An introduction to enzyme kinetics

04:44 min

Steady states and the Michaelis Menten equation

07:32 min

Cooperativity - Enzyme Kinetics

04:26 min

Allosteric regulation and feedback loops

06:05 min

Non-enzymatic protein function

10:44 min

Covalent modifications to enzymes

04:38 min

Biology A-Level

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Cell Membranes and Transport

Cell Membranes: The Phospholipid Bilayer

09:39 min

Transport Across Cell Membranes: Diffusion

08:45 min

Transport Across Cell Membranes: Active Transport

05:23 min

Cell membrane introduction

08:52 min

Phospholipid structure

07:01 min

Cell membrane overview and fluid mosaic model

08:52 min

Cell membrane proteins

08:11 min

Cell membrane fluidity

07:04 min

Membrane dynamics

05:29 min

How do things move across a cell membrane?

11:50 min

Passive Transport by Facilitated Diffusion

05:16 min

Diffusion and osmosis

18:59 min

Glomerular filtration in the nephron

07:18 min

Sodium-potassium pump

13:53 min

Secondary active transport in the nephron

14:13 min

Membrane Potentials - 1

08:21 min

Membrane Potentials - 2

08:45 min

Permeability and Membrane Potentials

12:42 min

The Mitotic Cell Cycle

Cell Cycle & its Phases

05:53 min

Interphase of Cell Cycle

05:58 min

Cell Division & Cell Cycle

25:58 min

Cell Cycle & Its Phases

11:24 min

Cytokinesis & Significance of Mitosis

10:52 min

Binary Fission

11:26 min

Nucleic Acids and Protein Synthesis

DNA Structure

15:53 min

RNA Structure

09:58 min

Introduction to DNA Replication

08:19 min

Protein Synthesis: Translation

11:22 min

Protein Synthesis: Transcription

11:41 min

Introduction to Protein Synthesis

09:32 min

Animal Cell Specialisation

16:13 min

Stem Cells

05:55 min

Gene Regulation: Introduction to Gene Mutations

09:29 min

Gene Regulation: The Lac Operon

13:58 min

Gene Regulation: Tumour Suppressor Genes

05:12 min

Gene Regulation: Hox Genes

11:42 min

DNA Structure & Packaging

94:18 min

DNA replication

12:59 min

Transcription: Transcription Unit

02:13 min

The Search for Genetic Material

09:33 min

Griffith Experiment

01:47 min

Meselson Stahl Experiment

05:16 min

DNA Fingerprinting - 1

06:10 min

DNA Fingerprinting - 2

09:55 min

Hershey Chase Experiment

01:49 min

DNA Replication: Helicase

09:22 min

Replication of DNA

07:59 min

DNA Polymerase: Efficiency & Accuracy

02:25 min

Genetic Code & Deciphering Genetic Code

09:20 min

Codons for Amino Acids

03:30 min

Translation

03:33 min

RNA : Adapter Molecule

13:47 min

Structure of Operon

05:48 min

Lac Operon

03:26 min

Human Genome Project: Methodologies & Features

05:05 min

Transport in Plants

Biology Transport in Plants part 1 (Introduction) CBSE class 11 XI

13:07 min

Transport in Plants- The Xylem

08:09 min

Transport in Plants- The Phloem

11:37 min

Transport in Mammals

Blood Vessels: Arteries, Capillaries & Veins

09:23 min

Structure of the Mammalian Heart

11:50 min

Cardiovascular Disease and Blood Clotting

10:05 min

Blood, Plasma & Formed Elements

06:14 min

Disorders of Circulatory System

10:42 min

Circulatory System: Fishes & Amphibians

12:57 min

BP Measurement & Heart Overview

08:20 min

Gas Exchange

Respiratory Organs & Human Respiratory System

09:03 min

Gas Exchange: The Structure of the Lungs

13:20 min

Gas Exchange in Bony Fish

13:06 min

Gas Exchange in Insects

06:53 min

Respiration in Aquatic & Terrestrial Ecosystems

02:44 min

Gaseous Exchange in Respiration

06:55 min

Mechanism: Gaseous Exchange in Lungs

10:26 min

Respiratory Volumes & Capacity

04:44 min

Breathing Mechanism & Respiratory Volumes

01:40 min

Infectious Disease

Infectious Diseases

04:57 min

Immunity

The Immune System: Phagocytosis

09:48 min

The Immune System: B and T Cells

10:19 min

The Immune System: Primary & Secondary Immune Response

08:53 min

Role of Phagocytes in Innate or Nonspecific Immunity

16:20 min

Types of Immune Responses: Innate and Adaptive

08:07 min

B lymphocytes (B cells)

14:13 min

Professional Antigen Presenting Cells (APC) and MHC II Complexes

11:33 min

Helper T cells

20:34 min

Antibodies

03:29 min

Antigen-Antibody Complex

05:59 min

B and T Cells

09:01 min

Disease: Viruses

09:52 min

Disease: Bacterial Pathogens

11:14 min

Human Health & Diseases (Infectious & Non -Infectious Disease)

12:04 min

(Immunity, innate immunity)

09:50 min

Acquired immunity, response)

11:11 min

(Antibodies & Antigens, B cells , T cells)

11:42 min

(Active & Passve Immunity, Humoral & CMI)

14:15 min

Vaccination)

08:00 min

Allergies)

07:10 min

Human immune system)

12:28 min

Antibiotics - Mechanisms of Action (Classification) and Antibiotic Resistance

07:27 min

AIDS

17:16 min

Cancer-1

12:45 min

Cancer-2

08:50 min

ELISA

03:15 min

Energy and Respiration

Glycolysis

13:26 min

Kreb Cycle

06:24 min

Introduction: Respiration in Plants

13:26 min

Detailed Overview: Respiration in Plants

07:37 min

Electron Transport Chain (ETS)

08:14 min

Electron Transport System & Respiratory Balance Sheet

10:11 min

Pyruvate Oxidation

05:38 min

Video: Krebs Cycle (Aerobic Respiration)

15:39 min

Respiratory Quotient

06:31 min

Net Yield: Aerobic Respiration

05:57 min

Cellular Respiration as a Process

11:50 min

Glycolysis: ATP yield

08:42 min

Gaseous Exchange in Plants, Aerobic & Anaerobic Respiration

12:47 min

Photosynthesis

Photosynthesis: The Light Dependent Stage

06:07 min

Photosynthesis: The Light Independent Stage

13:42 min

C4 Plants Pathway

15:06 min

Non Cyclic Photo-phosphorylation: Electron Excitation

12:03 min

Chemiosmotic Hypothesis

14:23 min

Electron Transport

07:55 min

Light Reactions & Photo-Phosphorylation

18:51 min

Photosynthesis Reaction

05:43 min

Pigments: Chlorophyll A & B

10:39 min

Factors affecting Photosynthesis

07:40 min

Homeostasis

Excretory System: The Role of the Kidney

06:36 min

Excretory System: Selective Reabsorption

12:35 min

Excretory System: ADH & Osmoregulation

14:07 min

Excretion in Animals

14:31 min

Counter Current Mechanism

20:06 min

Urine Formation

09:56 min

Excretory Organs

11:22 min

Control and Coordination

The Reflex Arc

09:06 min

Nervous System: The Resting Potential

12:54 min

Nervous System: The Structure of the Synapse

09:58 min

Structure of the Eye

12:21 min

Photoreceptors, Rods and Cones

09:21 min

Nervous System: Central and Peripheral Systems

06:29 min

Central Neural System

10:08 min

Neural System & Coordination

22:52 min

Sodium-Potassium Pump

11:50 min

The Eye: Parts & Mechanism of Vision

09:39 min

Coordination in Different Life Forms

13:23 min

Vision Mechanism

05:33 min

Fun Video: Generation & Conduction of Nerve Impulse

11:44 min

Reflex Action & Reflex Arc

10:02 min

Structure of Spinal Cord

12:07 min

Inheritance

Inheritance: Monohybrid Crosses

12:31 min

Inheritance: Dihybrid Crosses

15:50 min

Inheritance: Autosomal Linkage

11:05 min

Inheritance: Epistasis

16:34 min

Mendel's Law of Inheritance

36:23 min

Inheritance of One Gene

34:24 min

Linkage, Crossover & Recombination

14:15 min

Mendelian Disorder: Colour Blindness

03:21 min

Morgan's Experiment with Drosophila (Fruitfly)

10:40 min

Linkage Group & Morgan's Theory

05:11 min

Mendelian Disorder: Sickle Cell anaemia

14:59 min

Mendelian Disorder: Haemophilia

09:38 min

Genes & Alleles

01:54 min

Complete & Incomplete Linkage

14:41 min

Genetic Map Examples

13:20 min

Selection and Evolution

Natural Selection & Evolution

06:35 min

Allopatric & Sympatric Speciation

07:27 min

Introduction to Evolution

08:53 min

Evidence of Evolution

12:59 min

Hardy Weinberg Principle & Algebraic Equations

11:44 min

Miller Urey & Louis Pasteur Experiment

07:30 min

Hardy Weinberg Equation

11:44 min

Detailed Overview: Evidence of Evolution

11:22 min

Evolution of Man

16:13 min

Micro & Macro Evolution

08:44 min

Hardy Weinberg Principle Examples

12:58 min

Speciation

10:25 min

Evidence from Moths Propagation

13:24 min

A Brief Account of Evolution

13:22 min

Classification, Biodiversity and Conservation

Ecology: Community & Biome

04:02 min

Habitats

04:42 min

Age Pyramids

05:02 min

Logistic Growth Model

10:56 min

Exponential Growth Model

10:09 min

Mutualism: Population Interaction

03:21 min

Introduction to Organisms & Populations

05:59 min

Ecosystems: Food Chains, Food Webs & Trophic Levels

06:38 min

Ecological Pyramids: Numbers, Biomass & Energy

08:00 min

Ecosystems: The Carbon Cycle

09:02 min

Ecosystems: The Nitrogen Cycle

06:49 min

Grazing & Detritus Food Chain

03:51 min

Succession in Plants

09:00 min

Phosphorus Cycle

09:22 min

Carbon Cycle

10:04 min

Level of Consumers

02:22 min

Primary & Secondary Productivity

16:25 min

Decomposition Rate

10:57 min

Process of Decomposition

05:37 min

Genetic Technology

DNA Technology: DNA Profiling

09:21 min

DNA Technology: Seuqecing & the Human Genome Project

05:02 min

DNA Technology: Genetic Engineering

07:38 min

DNA Technology: Gene Therapy

09:27 min

Tools of Recombinant Technology

44:27 min

Why Genetic Engineering?

02:33 min

Steps of Genetic Engineering

08:17 min

What is rDNA Technology

08:17 min

Naming of Restriction Endonucleases

05:02 min

Working of Restriction Endonucleases

12:38 min

Restriction Enzymes (Recognition Sequence)

06:43 min

Foreign Gene Product & Downstream Processing

14:30 min

Molecular Diagnosis: ElISA test

01:49 min

BT Toxin

06:14 min

RNA Pathway

12:40 min

Pest Resistance: RNA Interference

04:08 min

Practicals

Practicals: Microscopy Exam Questions

11:50 min

Practicals: Dissection Exam Questions

09:01 min

Practicals: Sampling Techniques Exam Questions

12:57 min

Practicals: Rates of Enzyme Reactions Exam Questions

14:14 min

Practicals: Potometer Exam Questions

12:40 min

Practicals: Chromatography Exam Questions

09:29 min

Practicals: Transport In & Out of Cells Exam Questions

12:49 min

Practicals: Plant Responses Exam Questions

11:32 min

Practicals: Research Skills Exam Questions

11:20 min

Biology A-Level

279 videos|162 docs|142 tests

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Video lectures for Biology A-Level 2025 is part of A Level exam preparation. The videos have been prepared according to the A Level exam syllabus. The Video lectures, notes, tests & MCQs are made for A Level 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.

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