Welcome to StudyMats. This comprehensive educational guide for CBSE Class 10 Science Chapter 6 Life Processes Important Questions with Answers is prepared to assist students in preparing effectively for their school, board, and competitive examinations. All questions, exercise solutions, and concept notes strictly adhere to the latest NCERT curriculum and CBSE guidelines.
📘 CBSE Class 10 Science – Chapter 6
LIFE PROCESSES / जैव प्रक्रियाएँ
Complete Bilingual Question Bank + Answers
Explore comprehensive bilingual important questions and answers for CBSE Class 10 Science Chapter 6 Life Processes. Review key concepts, MCQs, short answers, long answers, and exam preparation tips. For further practice, check out Class 10 Science Chapter 5 Life Process Questions Answers to strengthen your foundational preparation.
🔹 A. MCQs / एक अंक के प्रश्न (20 Questions)
After complete digestion, proteins, carbohydrates and fats are respectively converted into?
Answer:
(i) Amino acids (ii) Glucose (iii) Fatty acids + Glycerol
(i) अमीनो अम्ल (ii) ग्लूकोज (iii) फैटी अम्ल + ग्लिसरीॉल
During inspiration in human respiratory system, what is the position of ribs and diaphragm?
Answer:
Ribs: Upwards and outwards / ऊपर और बाहर
Diaphragm: Downwards and flattened / नीचे की ओर चपटा
Soluble food made by photosynthesis in plants is transported by which process?
Answer: Translocation / स्थानांतरण (through phloem / फ्लोएम)
When do stomata close?
Answer: Night time / Water deficiency
रात्रि में / जल की कमी
Why is respiration rate faster in aquatic organisms than terrestrial?
Answer: Low oxygen solubility in water / जल में ऑक्सीजन की कम घुलनशीलता
Secretion of less saliva affects conversion of ______.
Answer: Starch to sugar / स्टार्च को शर्करा में
Opening and closing of stomata is regulated by ______.
Answer: Guard cells / संरक्षक कोशिकाएँ
One-cell thick blood vessels are known as ______.
Answer: Capillaries / केशिकाएँ
Define life process.
Answer: Activities performed by organisms to maintain life
जीवन को बनाए रखने हेतु की जाने वाली क्रियाएँ
What is autotrophic nutrition?
Answer: Process of making own food / स्वयं भोजन बनाने की प्रक्रिया (Photosynthesis)
🔹 B. बहुत लघु उत्तरीय प्रश्न (2 Marks) – 15 Questions
(i) HCl (ii) Villi (iii) Anal sphincter (iv) Lipase
| Component | English | हिंदी |
|---|---|---|
| HCl | Kills germs, activates pepsin | कीटाणु नष्ट, पेप्सिन सक्रिय |
| Villi | Increases absorption area | अवशोषण क्षेत्र बढ़ाती |
| Anal sphincter | Controls defecation | मल त्याग नियंत्रण |
| Lipase | Fats → Fatty acids + Glycerol | वसा → फैटी अम्ल + ग्लिसरीॉल |
Answer:
Process: Translocation / स्थानांतरण
Tissue: Phloem / फ्लोएम
Direction: Leaves to all parts / पत्तियों से सभी भागों तक
Answer:
Formation: Plasma + WBCs + interstitial fluid
Function: Returns tissue fluid to blood
| Nutrition / पोषण | Respiration / श्वसन |
|---|---|
| Food intake | Energy release |
| Anabolic process | Catabolic process |
🔹 C. लघु उत्तरीय प्रश्न (3 Marks)
Answer:
1. Water has very less oxygen
2. Faster gill movement required
3. Continuous water flow needed
Answer: By diffusion through moist surface, rich blood supply and large surface area (alveoli)
| Mechanical | Chemical |
|---|---|
| Physical breakdown | Enzymatic breakdown |
| Teeth, muscles | HCl, enzymes |
🔹 D. दीर्घ उत्तरीय प्रश्न (5 Marks)
Answer:
Ingestion → Digestion → Absorption → Assimilation → Egestion
Answer:
Four chambers, double circulation prevents mixing of blood
Equation:
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ (Sunlight, Chlorophyll)
🔹 E. Assertion – Reason
Reason: वाष्पीकरण से ताप कम होता है。
Answer: Both A and R are true and R explains A
🔹 F. Case-Based Question
Answer:
Anaerobic respiration → Lactic acid accumulation → Muscle fatigue
🎯 END OF QUESTION BANK
📊 EXAM PREPARATION TIPS / परीक्षा तैयारी सुझाव
- Digestive enzymes (Amylase, Pepsin, Trypsin, Lipase) + their locations
- Four chambers of heart + blood flow direction
- Aerobic & Anaerobic respiration equations
- Functions of Xylem and Phloem
- पाचन एंजाइम और उनका स्थान
- हृदय के चार कक्ष एवं रक्त प्रवाह
- श्वसन के दोनों समीकरण
- जाइलम एवं फ्लोएम के कार्य
- Human Heart (4 chambers, valves)
- Human Alimentary Canal
- Nephron
- Chloroplast
- Human Respiratory System
- Human Excretory System
- मानव हृदय
- पाचन तंत्र
- नेफ्रॉन
- क्लोरोप्लास्ट
- श्वसन तंत्र
- उत्सर्जन तंत्र
| Topic | Approx. Weightage |
|---|---|
| Photosynthesis | 15% |
| Respiration | 20% |
| Human Heart & Circulation | 15% |
| Digestion & Nutrition | 20% |
| Excretion (Kidney, Nephron) | 10% |
- Always write headings in long answers
- Use flow diagrams where possible
- Label diagrams neatly (minimum 4 labels)
- Write chemical equations wherever applicable
- Do not mix Hindi and English in the same sentence
- दीर्घ उत्तरों में उपशीर्षक
- फ्लो चार्ट/डायग्राम का प्रयोग
- आरेख में साफ लेबलिंग
- समीकरण अवश्य लिखें
- भाषा स्पष्ट और अलग रखें
📘 This Question Bank + Tips = Complete Board Preparation Package
यह Question Bank और Tips मिलकर 100% बोर्ड तैयारी सुनिश्चित करते हैं।
💡 Important Exam & Study Tips
- Master NCERT Fundamentals: Ensure thorough familiarity with standard textbook definitions, formulas, and in-text examples before solving advanced problems.
- Step-by-Step Presentation: In board examinations, neat presentation, correct formula application, and labeled steps earn maximum step-marking.
- Practice Under Timed Conditions: Regular practice with previous years' question papers (PYQs) builds exam speed and accuracy.
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❓ Frequently Asked Questions (FAQs)
Q1: Are these solutions aligned with the latest rationalized syllabus?
Yes, all study notes and practice questions on StudyMats strictly follow the updated NCERT textbook pattern and CBSE assessment guidelines.
Q2: How can I prepare this chapter for highest marks?
Review the theory thoroughly, solve all textbook exercise questions, and repeatedly practice the high-frequency questions provided in this guide.