🧬 Life Processes – Important Diagrams and Their Labelling
Class 10 Science | CBSE + Foundation + Competitive Level | Animated Diagram Practice
📚 Life Processes – Important Diagrams & Their Labelling
1. Human Digestive System | मानव पाचन तंत्र
English: The human digestive system consists of the alimentary canal and associated digestive glands.
हिन्दी: मानव पाचन तंत्र में alimentary canal तथा उससे संबंधित digestive glands शामिल होते हैं।
हिन्दी: मानव पाचन तंत्र में alimentary canal तथा उससे संबंधित digestive glands शामिल होते हैं।
Animated Digestive System
| Label | Function |
|---|---|
| Mouth | Ingestion and initial digestion of starch |
| Oesophagus | Moves food by peristalsis |
| Stomach | Protein digestion begins |
| Liver | Produces bile |
| Pancreas | Produces digestive enzymes |
| Small Intestine | Complete digestion and absorption |
| Large Intestine | Absorbs water and some salts |
2. Human Respiratory System | मानव श्वसन तंत्र
Animated Respiratory System
Important Labels:
Nasal Passage → Trachea → Bronchi → Bronchioles → Alveoli → Lungs → Diaphragm
3. Structure of Alveolus | वायुकोष की संरचना
Alveoli are tiny balloon-like structures where exchange of oxygen and carbon dioxide occurs.
O₂: Alveolus → Blood
CO₂: Blood → Alveolus
CO₂: Blood → Alveolus
4. Human Heart | मानव हृदय
Animated Four-Chambered Heart
| Structure | Main Function |
|---|---|
| Right Atrium | Receives deoxygenated blood from body |
| Right Ventricle | Pumps blood to lungs |
| Left Atrium | Receives oxygenated blood from lungs |
| Left Ventricle | Pumps oxygenated blood to whole body |
| Aorta | Carries oxygenated blood to body |
| Pulmonary Artery | Carries deoxygenated blood to lungs |
| Pulmonary Vein | Carries oxygenated blood to heart |
5. Double Circulation | द्वि-संचरण
Pulmonary circulation:
Heart → Lungs → Heart
Systemic circulation: Heart → Body → Heart
Double circulation: Blood passes through the heart twice during one complete circulation.
Systemic circulation: Heart → Body → Heart
Double circulation: Blood passes through the heart twice during one complete circulation.
6. Human Excretory System | मानव उत्सर्जन तंत्र
7. Nephron | नेफ्रॉन
Nephron = Structural + Functional Unit of Kidney
Main parts:
Main parts:
- Glomerulus
- Bowman's Capsule
- Renal Tubule
- Collecting Duct
8. Transportation in Plants | पौधों में परिवहन
| Transport Tissue | Material | Direction |
|---|---|---|
| Xylem | Water + Minerals | Mainly upward |
| Phloem | Food | Source → Sink; may be in different directions |
9. Stomata | रंध्र
Stomata: Small pores present mainly on the epidermis of leaves.
Functions:
Functions:
- Exchange of gases
- Loss of water vapour through transpiration
- Controlled by guard cells
10. Important Diagram Labelling – Quick Table
| Diagram | Must Learn Labels |
|---|---|
| Digestive System | Mouth, Oesophagus, Stomach, Liver, Pancreas, Small Intestine, Large Intestine, Anus |
| Respiratory System | Nasal Passage, Trachea, Bronchi, Bronchioles, Lungs, Alveoli, Diaphragm |
| Alveolus | Alveolar wall, Blood capillary, Oxygen, Carbon dioxide |
| Heart | Right Atrium, Right Ventricle, Left Atrium, Left Ventricle, Aorta, Vena Cava, Pulmonary Artery, Pulmonary Vein |
| Excretory System | Kidneys, Ureters, Urinary Bladder, Urethra |
| Nephron | Glomerulus, Bowman's Capsule, Renal Tubule, Collecting Duct |
| Plant Transport | Root, Stem, Xylem, Phloem, Leaves |
| Stomata | Guard Cells, Stomatal Pore, Epidermal Cells |
11. Most Important Diagrams for CBSE Exam
⭐ Very Important: Human Heart
⭐ Very Important: Human Respiratory System
⭐ Very Important: Human Digestive System
⭐ Very Important: Nephron
⭐ Very Important: Human Excretory System
⭐ Important: Alveolus
⭐ Important: Transportation in Plants
⭐ Important: Stomata
⭐ Very Important: Human Respiratory System
⭐ Very Important: Human Digestive System
⭐ Very Important: Nephron
⭐ Very Important: Human Excretory System
⭐ Important: Alveolus
⭐ Important: Transportation in Plants
⭐ Important: Stomata
12. Diagram-Based Questions | Diagram आधारित प्रश्न
1 Mark
Q1. Name the structural and functional unit of kidney.
Answer: Nephron.
1 Mark
Q2. Name the tiny structures in lungs where gaseous exchange occurs.
Answer: Alveoli.
1 Mark
Q3. Which tissue transports water in plants?
Answer: Xylem.
1 Mark
Q4. Name the chamber of heart that pumps oxygenated blood to the whole body.
Answer: Left ventricle.
2 Marks
Q5. Name any two structures of the human excretory system.
Answer: Kidney and ureter.
2 Marks
Q6. Name the two blood vessels associated with pulmonary circulation.
Answer: Pulmonary artery and pulmonary vein.
3 Marks
Q7. Label the following major parts of a nephron.
Answer:
Glomerulus, Bowman's capsule and renal tubule.
3 Marks
Q8. What are the functions of stomata?
Answer:
Stomata help in gaseous exchange and control the loss of water vapour through transpiration.
4 Marks
Q9. Draw a labelled diagram of the human respiratory system.
Expected Labels:
Nasal passage, trachea, bronchi, lungs, alveoli and diaphragm.
4 Marks
Q10. Draw a labelled diagram of the human heart and mention the functions of its four chambers.
Answer:
Right atrium receives deoxygenated blood.
Right ventricle sends it to lungs.
Left atrium receives oxygenated blood.
Left ventricle pumps oxygenated blood to the whole body.
5 Marks
Q11. Draw a neat labelled diagram of a nephron and explain urine formation.
Key Labels:
Glomerulus, Bowman's capsule, renal tubule and collecting duct.
Urine formation involves filtration, selective reabsorption and tubular secretion.
Urine formation involves filtration, selective reabsorption and tubular secretion.
5 Marks
Q12. Draw a labelled diagram of the human excretory system and explain the function of its parts.
Kidneys form urine, ureters carry urine to the urinary bladder,
the bladder stores urine temporarily and urethra carries urine outside the body.
6 Marks
Q13. Draw a labelled diagram of the human heart and explain double circulation.
Pulmonary circulation:
Right ventricle → Lungs → Left atrium
Systemic circulation: Left ventricle → Body → Right atrium
Thus, blood passes through the heart twice during one complete circulation.
Systemic circulation: Left ventricle → Body → Right atrium
Thus, blood passes through the heart twice during one complete circulation.
6 Marks
Q14. Draw and explain the human digestive system.
Food passes through:
Mouth → Oesophagus → Stomach → Small Intestine → Large Intestine → Rectum → Anus
Associated organs include liver and pancreas. Small intestine is the main site of complete digestion and absorption.
Mouth → Oesophagus → Stomach → Small Intestine → Large Intestine → Rectum → Anus
Associated organs include liver and pancreas. Small intestine is the main site of complete digestion and absorption.
13. Diagram Drawing Rules | Diagram बनाने के नियम
✔ Diagram बड़ा और साफ बनाइए।
✔ Pencil से diagram बनाना बेहतर है।
✔ Labels को horizontal रखें।
✔ Label lines एक-दूसरे को cross न करें।
✔ Diagram का title जरूर लिखें।
✔ Arrow/label line जिस structure को दिखा रही है, वह स्पष्ट हो।
✔ Unnecessary colouring से बचें।
✔ Important parts के spelling सही रखें।
✔ Pencil से diagram बनाना बेहतर है।
✔ Labels को horizontal रखें।
✔ Label lines एक-दूसरे को cross न करें।
✔ Diagram का title जरूर लिखें।
✔ Arrow/label line जिस structure को दिखा रही है, वह स्पष्ट हो।
✔ Unnecessary colouring से बचें।
✔ Important parts के spelling सही रखें।
14. Final Revision – Life Processes Diagrams
Digestive System → Digestion + Absorption
Respiratory System → Gas Exchange
Heart → Blood Circulation
Xylem → Water + Minerals
Phloem → Food
Nephron → Urine Formation
Stomata → Gas Exchange + Transpiration
CBSE Diagram Golden Rule:
Life Processes में diagram-based questions के लिए केवल diagram बनाना पर्याप्त नहीं है। Correct shape + correct labels + correct function — तीनों पर ध्यान देना चाहिए।
Life Processes में diagram-based questions के लिए केवल diagram बनाना पर्याप्त नहीं है। Correct shape + correct labels + correct function — तीनों पर ध्यान देना चाहिए।
