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Class XI Biology NCERT Explained Videos

IX NCERT Video Course 1A

1.1 What is ‘Living’?
1.2 Diversity in the Living World
1.3 Taxonomic Categories
1.3.1 Species
1.3.2 Genus
1.3.3 Family
1.3.4 Order
1.3.5 Class
1.3.6 Phylum
1.3.7 Kingdom

IX NCERT Video Course 1B


1.4 Taxonomical Aids
1.4.1 Herbarium
1.4.2 Botanical Gardens
1.4.3 Museum
1.4.4 Zoological Parks
1.4.5 Key

IX NCERT Video Course 2A


2.1 Kingdom Monera
2.1.1 Archaebacteria
2.1.2 Eubacteria

IX NCERT Video Course 2B


2.2 Kingdom Protista
2.2.1 Chrysophytes
2.2.2 Dianoflagellates
2.2.3 Euglenoids
2.2.4 Slime Moulds
2.2.5 Protozoans

IX NCERT Video Course 2C


2.3 Kingdom Fungi
2.3.1 Phycomycetes
2.3.2 Ascomycetes
2.3.3 Basidiomycetes
2.3.4 Deuteromycetes
2.4 Kingdom Plantae
2.5 Kingdom Animalia
2.6 Viruses, Viroids and Lichens

IX NCERT Video Course 3A


3.1 Algae
3.1.1 Chlorophyceae
3.1.2 Phaeophyceae
3.1.3 Rhodophyceae

IX NCERT Video Course 3B


3.2 Bryophytes
3.2.1 Liverworts
3.2.2 Mosses
3.3 Pteridophytes

IX NCERT Video Course 3C


3.4 Gymnosperms
3.5 Angiosperms
3.6 Plant Life Cycles and Alternation of Generations

IX NCERT Video Course 4A


4.1 Basis of Classification
4.1.1 Levels of Organisation
4.1.2 Symmetry
4.1.3 Diploblastic and Triploblastic Organisation
4.1.4 Coelom
4.1.5 Segmentation
4.1.6 Notochord

IX NCERT Video Course 4B


4.2 Classification of Animals

IX NCERT Video Course 4C


4.2.1 Phylum – Porifera

IX NCERT Video Course 4D


4.2.2 Phylum – Coelenterata (Cnidaria)

IX NCERT Video Course 4E


4.2.3 Phylum – Ctenophora

IX NCERT Video Course 4F


4.2.4 Phylum – Platyhelminthes

IX NCERT Video Course 4G


4.2.5 Phylum – Aschelminthes

IX NCERT Video Course 4H


4.2.6 Phylum – Annelida

IX NCERT Video Course 4I


4.2.7 Phylum – Arthropoda

IX NCERT Video Course 4J


4.2.8 Phylum – Mollusca

IX NCERT Video Course 4K


4.2.9 Phylum – Echinodermata

IX NCERT Video Course 4L


4.2.10 Phylum – Hemichordata

IX NCERT Video Course 4M


4.2.11 Phylum – Chordata
4.2.11.1 Class – Cyclostomata
4.2.11.2 Class – Chondrichthyes
4.2.11.3 Class – Osteichthyes

IX NCERT Video Course 4B


4.2 Classification of Animals

IX NCERT Video Course 5A


5.1 The Root
5.1.1 Regions of the Root
5.1.2 Modifications of Root

IX NCERT Video Course 5B


5.2 The Stem
5.2.1 Modifications of Stem

IX NCERT Video Course 5C


5.3 The Leaf
5.3.1 Venation
5.3.2 Types of Leaves
5.3.3 Phyllotaxy
5.3.4 Modifications of Leaves

IX NCERT Video Course 5D


5.4 The Inflorescence

IX NCERT Video Course 5E


5.5 The Flower
5.5.1 Parts of a Flower
5.5.1.1 Calyx
5.5.1.2 Corolla
5.5.1.3 Androecium
5.5.1.4 Gynoecium

IX NCERT Video Course 5F


5.6 The Fruit

IX NCERT Video Course 5G


5.7 The Seed
5.7.1 Structure of a Dicotyledonous Seed
5.7.2 Structure of Monocotyledonous Seed

IX NCERT Video Course 5H


5.8 Semi-technical Description of a Typical Flowering Plant

IX NCERT Video Course 5I


5.9 Description of Some Important Families
5.9.1 Fabaceae
5.9.2 Solanaceae
5.9.3 Lilaceae

IX NCERT Video Course 6A


6.1 The Tissues
6.1.1 Meristematic Tissues

IX NCERT Video Course 6B


6.1.2 Permanent Tissues
6.1.2.1 Simple Tissues
6.1.2.2 Complex Tissues

IX NCERT Video Course 6C


6.2 The Tissue System
6.2.1 Epidermal Tissue System
6.2.2 The Ground Tissue System
6.2.3 The Vascular Tissue System

IX NCERT Video Course 6D


6.3 Anatomy of Dicotyledonous and Monocotyledonous Plants
6.3.1 Dicotyledonous Root
6.3.2 Monocotyledonous Root
6.3.3 Dicotyledonous Stem
6.3.4 Monocotyledonous Stem

IX NCERT Video Course 6E


6.3.5 Dorsiventral (Dicotyledonous) Leaf
6.3.6 Isobilateral (Monocotyledonous) Leaf

IX NCERT Video Course 6F


6.4 Secondary Growth
6.4.1 Vascular Cambium
6.4.1.1 Formation of cambial ring
6.4.1.2 Activity of the cambial ring
6.4.1.3 Spring wood and autumn wood
6.4.1.4 Heartwood and sapwood
6.4.2 Cork Cambium
6.4.3 Secondary Growth in Roots

IX NCERT Video Course 7A


7.1 Animal Tissues
7.1.1 Epithelial Tissue
7.1.2 Connective Tissue

IX NCERT Video Course 7B


7.1.3 Muscle Tissue
7.1.4 Neural Tissue
7.2 Organ and Organ System

IX NCERT Video Course 7C


7.3 Earthworm
7.3.1 Morphology
7.3.2 Anatomy

IX NCERT Video Course 7D


7.4 Cockroach
7.4.1 Morphology
7.4.2 Anatomy

IX NCERT Video Course 7E


7.5 Frogs
7.5.1 Morphology
7.5.2 Anatomy

IX NCERT Video Course 8A


8.1 What is a Cell?
8.2 Cell Theory
8.3 An Overview of Cell

IX NCERT Video Course 8B


8.4 Prokaryotic Cells
8.4.1 Cell Envelope and its Modifications
8.4.2 Ribosomes and Inclusion Bodies

IX NCERT Video Course 8C


8.5 Eukaryotic Cells
8.5.1 Cell Membrane
8.5.2 Cell Wall

IX NCERT Video Course 8D


8.5.3 Endomembrane System
8.5.3.1 The Endoplasmic Reticulum (ER)
8.5.3.2 Golgi apparatus
8.5.3.3 Lysosomes
8.5.3.4 Vacuoles

IX NCERT Video Course 8E


8.5.4 Mitochondria
8.5.5 Plastids
8.5.6 Ribosomes

IX NCERT Video Course 8F


8.5.7 Cytoskeleton
8.5.8 Cilia and Flagella
8.5.9 Centrosome and Centrioles

IX NCERT Video Course 8G


8.5.10 Nucleus
8.5.11 Microbodies

IX NCERT Video Course 9A


9.1 How to Analyse Chemical Composition?
9.2 Primary and Secondary Metabolites

IX NCERT Video Course 9B


9.3 Biomacromolecules
9.4 Proteins
9.5 Polysaccharides

IX NCERT Video Course 9C


9.6 Nucleic Acids
9.7 Structure of Proteins
9.8 Nature of Bond Linking Monomers in a Polymer

IX NCERT Video Course 9D


9.9 Dynamic State of Body Constituents - Concept of Metabolism
9.10 Metabolic Basis for Living
9.11 The Living State

IX NCERT Video Course 9E


9.12 Enzymes
9.12.1 Chemical Reactions
9.12.2 How do Enzymes bring about such High Rates of Chemical Conversions?
9.12.3 Nature of Enzyme Action

IX NCERT Video Course 9F


9.12.4 Factors Affecting Enzyme Activity
Temperature and pH
Concentration of Substrate

IX NCERT Video Course 9G


9.12.5 Classification and Nomenclature of Enzymes
Oxidoreductases/dehydrogenases
Transferases
Hydrolases
Lyases
Isomerases
Ligases

IX NCERT Video Course 9H


9.12.6 Co-factors

IX NCERT Video Course 10A


10.1 Cell Cycle
10.1.1 Phases of Cell Cycle

IX NCERT Video Course 10B


10.2 M Phase
10.2.1 Prophase
10.2.2 Metaphase
10.2.3 Anaphase
10.2.4 Telophase
10.2.5 Cytokinesis
10.3 Significance of Mitosis

IX NCERT Video Course 10C


10.4 Meiosis
10.4.1 Meiosis I
10.4.2 Meiosis II
10.5 Significance of Meiosis

IX NCERT Video Course 11A


11.1 Means of Transport
11.1.1 Diffusion
11.1.2 Facilitated Diffusion
11.1.2.1 Passive symports and Antiports
11.1.3 Active Transport
11.1.4 Comparison of Different Transport Processes

IX NCERT Video Course 11B


11.2 Plant-Water Relations
11.2.1 Water Potential
11.2.2 Osmosis
11.2.3 Plasmolysis
11.2.4 Imbibition

IX NCERT Video Course 11C


11.3 Long Distance Transport of Water
11.3.1 How do Plants Absorb Water?
11.3.2 Water Movement up a Plant
11.3.2.1 Root Pressure
11.3.2.2 Transpiration pull

IX NCERT Video Course 11D


11.4 Transpiration
11.4.1 Transpiration and Photosynthesis – a Compromise

IX NCERT Video Course 11E


11.5 Uptake and Transport of Mineral Nutrients
11.5.1 Uptake of Mineral Ions
11.5.2 Translocation of Mineral Ions

IX NCERT Video Course 11F


11.6 Phloem Transport: Flow from Source to Sink
11.6.1 The Pressure Flow or Mass Flow Hypothesis

IX NCERT Video Course 12A


12.1 Methods to Study the Mineral Requirements of Plants
12.2 Essential Mineral Elements
12.2.1 Criteria for Essentiality
12.2.2 Role of Macro- and Micro-nutrients

IX NCERT Video Course 12B


12.2.3 Deficiency Symptoms of Essential Elements
12.2.4 Toxicity of Micronutrients

IX NCERT Video Course 12C


12.3 Mechanism of Absorption of Elements
12.4 Translocation of Solutes

IX NCERT Video Course 12D


12.5 Soil as Reservoir of Essential Elements
12.6 Metabolism of Nitrogen
12.6.1 Nitrogen Cycle
12.6.2 Biological Nitrogen Fixation

IX NCERT Video Course 13A


13.1 What do we Know?
13.2 Early Experiments

IX NCERT Video Course 13B


13.3 Where does Photosynthesis take place?
13.4 How many Pigments are involved in Photosynthesis?

IX NCERT Video Course 13C


13.5 What is Light Reaction?
13.6 The Electron Transport
13.6.1 Splitting of Water
13.6.2 Cyclic and Non-cyclic Photo-phosphorylation
13.6.3 Chemiosmotic Hypothesis

IX NCERT Video Course 13D


13.7 Where are the ATP and NADPH Used?
13.7.1 The Primary Acceptor of CO2
13.7.2 The Calvin Cycle

IX NCERT Video Course 13E


13.8 The C4 Pathway
13.9 Photorespiration

IX NCERT Video Course 13F


13.10 Factors affecting Photosynthesis
13.10.1 Light
13.10.2 Carbon dioxide Concentration
13.10.3 Temperature
13.10.4 Water

IX NCERT Video Course 14A


14.1 Do Plants Breathe?
14.2 Glycolysis
14.3 Fermentation

IX NCERT Video Course 14B


14.4 Aerobic Respiration
14.4.1 Tricarboxylic Acid Cycle

IX NCERT Video Course 14C


14.4.2 Electron Transport System (ETS) and Oxidative Phosphorylation
14.5 The Respiratory Balance Sheet

IX NCERT Video Course 14D


14.6 Amphibolic Pathway
14.7 Respiratory Quotient

IX NCERT Video Course 15A


15.1 Growth
15.1.1 Plant Growth Generally is Indeterminate
15.1.2 Growth is Measurable
15.1.3 Phases of Growth
15.1.4 Growth Rates
15.1.5 Conditions for Growth

IX NCERT Video Course 15B


15.2 Differentiation, Dedifferentiation and Redifferentiation
15.3 Development

IX NCERT Video Course 15C


15.4 Plant Growth Regulators
15.4.1 Characteristics
15.4.2 The Discovery of Plant Growth Regulators
15.4.3 Physiological Effects of Plant Growth Regulators
15.4.3.1 Auxins

IX NCERT Video Course 15D


15.4.3.2 Gibberellins
15.4.3.3 Cytokinins

IX NCERT Video Course 15E


15.4.3.4 Ethylene
15.4.3.5 Abscisic acid

IX NCERT Video Course 15F


15.5 Photoperiodism
15.6 Vernalisation

IX NCERT Video Course 16A


DIGESTION AND ABSORPTION
16.1 Digestive System
16.1.1 Alimentary Canal
16.1.2 Digestive Glands

IX NCERT Video Course 16B


16.2 Digestion of Food

IX NCERT Video Course 16C


16.3 Absorption of Digested Products

IX NCERT Video Course 16D


16.4 Disorders of Digestive System

IX NCERT Video Course 17A


17.1 Respiratory Organs
17.1.1 Human Respiratory System

IX NCERT Video Course 17B


17.2 Mechanism of Breathing
17.2.1 Respiratory Volumes and Capacities

IX NCERT Video Course 17C


17.3 Exchange of Gases
17.4 Transport of Gases
17.4.1 Transport of Oxygen
17.4.2 Transport of Carbon dioxide

IX NCERT Video Course 17D


17.5 Regulation of Respiration

IX NCERT Video Course 17E


17.6 Disorders of Respiratory System

IX NCERT Video Course 18A


18.1 Blood
18.1.1 Plasma
18.1.2 Formed Elements

IX NCERT Video Course 18BC


18.1.3.1 ABO grouping
18.1.3.2 Rh grouping

IX NCERT Video Course 18D


18.1.4 Coagulation of Blood
18.2 Lymph (Tissue Fluid)

IX NCERT Video Course 18E


18.3 Circulatory Pathways
18.3.1 Human Circulatory System

IX NCERT Video Course 18F


18.3.2 Cardiac Cycle
18.3.3 Electrocardiograph (ECG)
18.4 Double Circulation

IX NCERT Video Course 18G


18.5 Regulation of Cardiac Activity

IX NCERT Video Course 18H


18.6 Disorders of Circulatory System

IX NCERT Video Course 19A


19.1 Human Excretory System

IX NCERT Video Course 19B


19.2 Urine Formation
19.3 Function of the Tubules
19.4 Mechanism of Concentration of the Filtrate

IX NCERT Video Course 19C


19.5 Regulation of Kidney Function

IX NCERT Video Course 19D


19.6 Micturition
19.7 Role of other Organs in Excretion
19.8 Disorders of the Excretory System

IX NCERT Video Course 20A


20.1 Types of Movement
20.2 Muscle
20.2.1 Structure of Contractile Proteins
20.2.2 Mechanism of Muscle Contraction

IX NCERT Video Course 20B


20.3 Skeletal System
20.4 Joints
20.5 Disorders of Muscular and Skeletal System

IX NCERT Video Course 21A


21.1 Neural System
21.2 Human Neural System

IX NCERT Video Course 21B


21.3 Neuron as Structural and Functional Unit of Neural System
21.3.1 Generation and Conduction of Nerve Impulse
21.3.2 Transmission of Impulses

IX NCERT Video Course 21C


21.4 Central Neural System
21.4.1 Forebrain
21.4.2 Midbrain
21.4.3 Hindbrain

IX NCERT Video Course 21D


21.5 Reflex Action and Reflex Arc
21.6 Sensory Reception and Processing

IX NCERT Video Course 21E


21.6.1 Eye
21.6.1.1 Parts of an eye
21.6.1.2 Mechanism of Vision

IX NCERT Video Course 21F


21.6.2 The Ear
20.6.2.1 Mechanism of Hearing

IX NCERT Video Course 22A


22.1 Endocrine Glands and Hormones
22.2 Human Endocrine System
22.2.1 The Hypothalamus
22.2.2 The Pituitary Gland
22.2.3 The Pineal Gland

IX NCERT Video Course 22B


22.2.4 Thyroid Gland
22.2.5 Parathyroid Gland
22.2.6 Thymus

IX NCERT Video Course 22C


22.2.7 Adrenal Gland
22.2.8 Pancreas

IX NCERT Video Course 22D


22.2.9 Testis
22.2.10 Ovary

IX NCERT Video Course 22E


22.3 Hormones of Heart, Kidney and Gastrointestinal Tract
22.4 Mechanism of Hormone Action

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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