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CBSENCERT.Class11.Biology.HumanPhysiologyNCERT-2023

Human physiology: digestion, respiration, circulation, excretion

NCERT (CBSE)·cbseBiology·Grade 11·Bloom: Understand·Last verified: May 18, 2026

Describe digestion and absorption in humans. Explain gas exchange and respiratory mechanism. Understand the circulatory system, blood composition, and the human heart. Analyze excretory system and osmoregulation.

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Skills that teach this standard (1)

1 with free practice questions
How the Body Stays in Balance
The Human Body · Ages 12–14 · try 3 free questions

Concepts covered (126)

Showing the first 50
Digestion of Food
digestionAndAbsorption · cbseBiology · Grade 11
Mechanism of Breathing
breathingAndExchangeOfGases · cbseBiology · Grade 11
Disorders of Respiratory System
breathingAndExchangeOfGases · cbseBiology · Grade 11
Electrocardiograph
bodyFluidsAndCirculation · cbseBiology · Grade 11
Human Excretory System
excretoryProductsAndElimination · cbseBiology · Grade 11
Micturition
excretoryProductsAndElimination · cbseBiology · Grade 11
Skeletal System
locomotionAndMovement · cbseBiology · Grade 11
Reflex Action and Reflex Arc
neuralControlAndCoordination · cbseBiology · Grade 11
Exchange of Gases
breathingAndExchangeOfGases · cbseBiology · Grade 11
Double Circulation
bodyFluidsAndCirculation · cbseBiology · Grade 11
Urine Formation
excretoryProductsAndElimination · cbseBiology · Grade 11
Disorders of Excretory System
excretoryProductsAndElimination · cbseBiology · Grade 11
Joints
locomotionAndMovement · cbseBiology · Grade 11
Sensory Reception and Processing
neuralControlAndCoordination · cbseBiology · Grade 11
Human Endocrine Glands
chemicalCoordinationAndIntegration · cbseBiology · Grade 11
Disorders of Digestive System
digestionAndAbsorption · cbseBiology · Grade 11
Transport of Gases
breathingAndExchangeOfGases · cbseBiology · Grade 11
Human Circulatory System
bodyFluidsAndCirculation · cbseBiology · Grade 11
Regulation of Cardiac Activity
bodyFluidsAndCirculation · cbseBiology · Grade 11
Function of Tubules
excretoryProductsAndElimination · cbseBiology · Grade 11
Types of Movement
locomotionAndMovement · cbseBiology · Grade 11
Disorders of Muscular and Skeletal System
locomotionAndMovement · cbseBiology · Grade 11
Endocrine System
chemicalCoordinationAndIntegration · cbseBiology · Grade 11
Digestive System
digestionAndAbsorption · cbseBiology · Grade 11
Respiratory System
breathingAndExchangeOfGases · cbseBiology · Grade 11
Regulation of Respiration
breathingAndExchangeOfGases · cbseBiology · Grade 11
Cardiac Cycle
bodyFluidsAndCirculation · cbseBiology · Grade 11
Disorders of Circulatory System
bodyFluidsAndCirculation · cbseBiology · Grade 11
Regulation of Kidney Function
excretoryProductsAndElimination · cbseBiology · Grade 11
Muscular System
locomotionAndMovement · cbseBiology · Grade 11
Hormones
chemicalCoordinationAndIntegration · cbseBiology · Grade 11
Understand Cellular Respiration
cellUnitOfLife · cbseBiology · Grade 11
Analyze The Role Of Hemoglobin
breathingAndExchangeOfGases · cbseBiology · Grade 11
Calculate Respiratory Volumes
breathingAndExchangeOfGases · cbseBiology · Grade 11
Describe The Effects Of Altitude On Breathing
breathingAndExchangeOfGases · cbseBiology · Grade 11
Evaluate The Impact Of Smoking
breathingAndExchangeOfGases · cbseBiology · Grade 11
Understand The Process Of Respiration
breathingAndExchangeOfGases · cbseBiology · Grade 11
Differentiate Between Aerobic And Anaerobic Respiration
breathingAndExchangeOfGases · cbseBiology · Grade 11
Understand The Control Of Breathing
breathingAndExchangeOfGases · cbseBiology · Grade 11
Explain The Role Of Surfactant
breathingAndExchangeOfGases · cbseBiology · Grade 11
Identify Respiratory Structures In Humans
breathingAndExchangeOfGases · cbseBiology · Grade 11
Explain Gas Exchange Mechanisms
breathingAndExchangeOfGases · cbseBiology · Grade 11
Investigate Respiratory Diseases
breathingAndExchangeOfGases · cbseBiology · Grade 11
Illustrate The Pathway Of Air
breathingAndExchangeOfGases · cbseBiology · Grade 11
Describe The Menstrual Cycle
chemicalCoordinationAndIntegration · cbseBiology · Grade 11
Differentiate Between Voluntary And Involuntary Muscles
locomotionAndMovement · cbseBiology · Grade 11
Understand Enzyme Functions
digestionAndAbsorption · cbseBiology · Grade 11
Evaluate The Impact Of Diet On Digestion
digestionAndAbsorption · cbseBiology · Grade 11
Discuss The Importance Of Hydration
digestionAndAbsorption · cbseBiology · Grade 11
Describe Nephron Structure And Function
excretoryProductsAndElimination · cbseBiology · Grade 11

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