Life Processes MCQs – NCERT Science Class X Ch.5 | Academia Aeternum
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Life Processes
MCQ Master Series

Nutrition · Respiration · Transportation · Excretion

🎯 50 Questions
⏱ 30 min Suggested
📊 3 Tiers
🗂 4 Topics
⚡ Start Quiz 📊 Analytics
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Question Intelligence

Quiz Analytics

A data-driven breakdown of all 50 questions by difficulty, exam origin and topic distribution.

📈 Distribution Overview

50
Total Questions
CBSE Board
28
State Board
13
Olympiad Level
9

🗂 Topic Coverage

Nutrition
26%
Respiration
24%
Transportation
24%
Excretion
26%
28
CBSE Board
13
State Board
9
Olympiad Level
Conceptual Framework

Key Concept Highlights

6 foundational pillars that power every question in this quiz. Understand these, and the answers follow naturally.

🌿
Autotrophic Nutrition
Photosynthesis: CO₂ + H₂O → Glucose + O₂ (in chloroplasts using sunlight). Stomata regulate gas exchange.
🍽️
Heterotrophic Nutrition
Holozoic (humans), Saprophytic (fungi), Parasitic (leeches). Human digestion: mouth → oesophagus → stomach → small intestine → large intestine.
💨
Respiration
Aerobic: Glucose + O₂ → CO₂ + H₂O + 38 ATP. Anaerobic in yeast → ethanol + CO₂. In muscles → lactic acid.
❤️
Blood Circulation
Double circulation: pulmonary (heart→lungs) and systemic (heart→body). Heart has 4 chambers. Blood: plasma + RBCs + WBCs + platelets.
🌊
Transpiration
Water transport via xylem (upward). Food transport via phloem (bidirectional). Transpiration pull creates suction pressure.
🫘
Excretion
Kidney filters blood → urine (urea + water + salts). Nephron is the structural unit. Dialysis mimics kidney function.
Pedagogical Value

Why MCQs Matter

Multiple-choice questions are not mere guessing games — they are the sharpest diagnostic tool available to a competitive exam aspirant.

~15%
of CBSE Science — highest-weighted Biology chapter
Quick Reference

Important Formula Capsules

5 must-memorise equations that surface repeatedly across CBSE and JEE papers.

Photosynthesis
\[ 6CO_2 + 6H_2O \xrightarrow{h\nu} C_6H_{12}O_6 + 6O_2 \]
Aerobic Respiration
\[ C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + \text{ATP} \]
Anaerobic (Yeast)
\[ C_6H_{12}O_6 \rightarrow 2C_2H_5OH + 2CO_2 \]
Anaerobic (Muscle)
\[ C_6H_{12}O_6 \rightarrow 2C_3H_6O_3 \;(\text{lactic acid}) \]
Urine Formation
\[ \text{Glomerular filtration} \rightarrow \text{Reabsorption} \rightarrow \text{Secretion} \]
Learning Outcomes

What You Will Learn

By completing this quiz set you will have exercised all the following competencies.

01 Describe autotrophic and heterotrophic nutrition with labelled diagrams
02 Compare aerobic and anaerobic respiration in terms of products and energy yield
03 Trace the path of blood through the human heart (double circulation)
04 Explain the role of xylem and phloem in transport of materials in plants
05 Describe the structure of a nephron and outline the process of urine formation
06 Distinguish between the roles of kidneys, lungs, liver, and skin in excretion
Exam Preparation

Strategy & Preparation Tips

4 evidence-based strategies to maximise your score in CBSE Boards and JEE.

Step 01
Diagrams First
Draw and label: cross-section of leaf, human heart, nephron, and alimentary canal. CBSE 5-mark questions are diagram-based.
Step 02
Three Types of Nutrition
Know at least two examples for autotrophic, holozoic, saprophytic, and parasitic nutrition. CBSE tests recognition.
Step 03
Respiration Comparison Table
Make a 3-column table: Feature | Aerobic | Anaerobic. Include: location, products, energy yield, organisms. This table alone handles ~6 marks.
Step 04
Kidney Numericals
Blood is filtered ~180 L/day but only 1.5 L urine is produced — reabsorption is key. Understand the figures, don't memorise blindly.

Ready to Test Your Mastery?

50 questions  ·  Elapsed timer  ·  Instant scored results

⚡ Begin Life Processes Quiz
🎯 Knowledge Check

Biology — Life Processes

50 Questions Class 10 MCQs
1
Which of the following is a common passage for both food and air?
2
Which enzyme digests protein in the stomach?
3
Bile is secreted by ______ and stored in ______.
4
Which process converts light energy into chemical energy?
5
Which of the following provides raw materials for photosynthesis?
6
Which is the site of photosynthesis in plants?
7
Autotrophic nutrition involves:
8
Which of the following helps in absorption of digested food in the small intestine?
9
In which part of the alimentary canal is the acidic medium found?
10
The process of breaking food into simple soluble forms is called:
11
Which enzyme is present in saliva?
12
Which of the following organisms shows holozoic nutrition?
13
Guard cells regulate:
14
Which product is formed during photosynthesis?
15
Iodine solution is used to test the presence of:
16
Energy released during cellular respiration is stored in:
17
In anaerobic respiration in yeast, end products are:
18
Which part of the human body is the site for gaseous exchange?
19
The respiratory pigment in humans is:
20
Breathing rate increases when CO? concentration in blood:
21
The process of breakdown of glucose in the absence of oxygen is called:
22
Where does aerobic respiration take place in a cell?
23
The number of ATP molecules produced in aerobic respiration from one glucose molecule is:
24
The dome-shaped muscular structure involved in breathing is:
25
The first step of glucose breakdown occurs in:
26
Which blood vessel carries oxygenated blood from lungs to heart?
27
The normal blood pressure of humans is:
28
Which component of blood helps in clotting?
29
Which plant tissue transports food?
30
Which chamber of the human heart receives deoxygenated blood from the body?
31
The vascular bundles in plants are made up of:
32
Blood cells that fight infections are:
33
Which artery supplies blood to the heart muscles?
34
The upward movement of water in plants is mainly due to:
35
Double circulation in humans means:
36
Which pigment in RBCs carries oxygen?
37
In plants, water is lost through small pores called:
38
Transport of soluble products of photosynthesis is known as:
39
Which chamber of the heart pumps oxygenated blood to the body?
40
In plants, the main force responsible for movement of water is:
41
The functional unit of the kidney is:
42
Which of the following is the main excretory product in humans?
43
In plants, gaseous waste products are removed through:
44
The process of removal of metabolic waste products is known as:
45
Which blood vessel brings blood to the kidney for filtration?
46
Urine is stored in which part of the human body?
47
Which of the following structures in nephron is responsible for filtration of blood?
48
The amount of water reabsorbed by kidneys depends on:
49
Which of the following is not an excretory organ in humans?
50
In plants, excretion of excess water occurs through:
📚
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Sharing this chapter
Life Processes Class 10 MCQs (50 Qs) | Chapter 5 Practice
Life Processes Class 10 MCQs (50 Qs) | Chapter 5 Practice — Complete Notes & Solutions · academia-aeternum.com
The chapter Life Processes in Class 10 Biology explains the essential functions carried out by living organisms to sustain life, including nutrition, respiration, transportation, and excretion. Practicing MCQs based on this chapter helps students strengthen conceptual clarity and prepare effectively for board exams. These multiple-choice questions cover definitions, diagrams, examples, and applications of all key topics such as autotrophic and heterotrophic nutrition, human digestive system,…
🎓 Class 10 📐 Science 📖 NCERT ✅ Free Access 🏆 CBSE · JEE
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Exam tip: Sharing chapter notes with your study group creates a reinforcement loop. Teaching a concept is the fastest path to mastering it.

Frequently Asked Questions

Life processes are essential functions like nutrition, respiration, transportation, and excretion needed for living beings to surviveimage.jpg?learncbse?.

Life processes keep organisms alive by providing nutrients, energy, and waste elimination required for growth and survivalimage.jpg?learncbse+1?.

Nutrition involves acquiring and utilizing food. Plants use autotrophic nutrition, while animals use heterotrophic nutritionlearncbse+1?.

Autotrophs make food using sunlight, water, and CO2. Heterotrophs depend on consuming other living things for foodscribd+2?.

Photosynthesis is the process in which plants convert CO2 and water into carbohydrates using sunlight and chlorophyllimage.jpg?learncbse?.

The stages include ingestion, digestion, absorption, assimilation, and egestionlearncbse+1?.

Respiration releases energy from food. Aerobic uses oxygen, anaerobic does notallen+1?.

Aerobic uses oxygen, yields more energy; anaerobic is without oxygen and yields less energyallen+1?.

Organs like the nose, trachea, lungs, and alveoli help exchange gases and support respirationallen+1?.

Movement of nutrients, gases, and waste—through blood in humans, xylem and phloem in plantsimage.jpg?learncbse?.

Excretion removes metabolic wastes; egestion removes undigested food from the digestive tractlearncbse+1?.

Amoeba uses pseudopodia to engulf food, digests it in vacuoles, absorbs nutrients, and ejects wastelearncbse?.

ATP stores and transfers energy produced during respiration for cellular activitieslearncbse?.

Life processes, nutrition, photosynthesis, respiration, aerobic, anaerobic, transportation, excretion, autotrophic, heterotrophic, ATPimage.jpg?learncbse+2?

Living beings show features like movement, growth, respiration, and other life processes, even if not always visible externally?.

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    ACADEMIA AETERNUM तमसो मा ज्योतिर्गमय · Est. 2025
    Sharing this chapter
    Life Processes Class 10 MCQs (50 Qs) | Chapter 5 Practice
    Life Processes Class 10 MCQs (50 Qs) | Chapter 5 Practice — Complete Notes & Solutions · academia-aeternum.com
    The chapter Life Processes in Class 10 Biology explains the essential functions carried out by living organisms to sustain life, including nutrition, respiration, transportation, and excretion. Practicing MCQs based on this chapter helps students strengthen conceptual clarity and prepare effectively for board exams. These multiple-choice questions cover definitions, diagrams, examples, and applications of all key topics such as autotrophic and heterotrophic nutrition, human digestive system,…
    🎓 Class 10 📐 Science 📖 NCERT ✅ Free Access 🏆 CBSE · JEE
    Share on
    WhatsApp
    Telegram
    X / Twitter
    Facebook
    Instagram
    Threads
    Pinterest
    LinkedIn
    Quora
    Discord
    Reddit
    Email
    academia-aeternum.com/class-10/science/life-processes/mcqs/ Copy link
    💡
    Exam tip: Sharing chapter notes with your study group creates a reinforcement loop. Teaching a concept is the fastest path to mastering it.

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