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Directorate of Higher Secondary Education (DHSE Kerala) Class XI Biology Set 01 (Foundation Level) English Medium 100% Free Practice Test

Directorate of Higher Secondary Education (DHSE Kerala) Class XI Biology: Excretory Products and their Elimination Online Test (Set 01 (Foundation Level)) | TargetExams

Excretory Products and their Elimination — Set 01 (Foundation Level)

Take free online mock test for Directorate of Higher Secondary Education (DHSE Kerala) Class XI Biology chapter 'Excretory Products and their Elimination'. 20 MCQs, 20 minutes, detailed solutions & score analysis.

📝
20 MCQs
Questions
⏱️
20 Mins
Duration
🎯
20 Marks
Total Marks
➕
+1.0
Per Correct
🛡️
0.0
Negative Mark
🌐
English
Language
Start Test Now (English Medium)
Instant Scorecard Step-by-Step Solutions DHSE Kerala SCERT Pattern

Chapter Study Guide & In-Depth Notes

Master the key concepts, vocabulary, and high-yield questions before starting the test.

3 Sections

Chapter Overview & Core Concepts: Excretory Products and their Elimination

Class 11 Study Guide

Mastering Excretory Products and their Elimination in Class 11 provides critical subject intuition, analytical skills, and examination readiness.

Examinations test fundamental principles, definitions, cause-and-effect reasoning, and real-world applications under timed conditions.

Core Moral & Key Takeaway:

Grasping core concepts and practicing with timed chapter-wise CBT tests guarantees top performance in board exams.

Key Terminology, Definitions & Principles

Glossary & Concepts
Term / Formula Type Definition / Meaning Explanation / Notes Example / Usage
Core Concept Principle Primary concept governing Excretory Products and their Elimination. मुख्य सिद्धांत "Understand and apply the principle accurately."
Analytical Deduction Skill Evaluating evidence to draw correct conclusions. तार्किक विश्लेषण "Examine question clues systematically."

Key Features & Devices Explored:

Systematic Elimination
Eliminate distractor choices before selecting the best answer.
Pacing & Accuracy
Complete each question within 60 seconds to maintain steady momentum.

High-Yield Revision Points & Solved Board Exam Q&A

Revision Notes
⚡ High-Yield Exam Takeaways:
  • Review all key textbook terms, definitions, and formulas.
  • Pay attention to units, boundary values, and key keywords in questions.
  • Solve Foundation Set 01 to build confidence, followed by Advanced Set 02 for exam excellence.
Frequently Asked Questions & Model Answers:
Q1 How should students prepare for Excretory Products and their Elimination exams?
Answer: Read the chapter thoroughly, practice step-by-step solved examples, memorize key definitions, and evaluate preparation using timed online CBT mock tests.

Sample Questions Preview

Free Sneak Peek

Here is a sneak peek of the questions included in this test set. Test your preparation by viewing the answer and detailed explanation before starting the timed exam.

Q1
What are the three primary modes of **Nitrogenous Excretion** in animals?
മൃഗങ്ങളിൽ **നൈട്രജൻ വിസർജ്ജനത്തിൻ്റെ മൂന്ന് പ്രാഥമിക രീതികൾ ഏതൊക്കെയാണ്?
A
**1. **Ammonotelism**: Excretes highly toxic Ammonia ($NH_3$), requires large water volume (Aquatic invertebrates, bony fishes, tadpoles); 2. **Ureotelism**: Excretes less toxic Urea via ornithine cycle (Mammals, terrestrial amphibians, cartilaginous sharks); 3. **Uricotelism**: Excretes least toxic Uric acid paste with minimal water loss (Birds, reptiles, insects, land snails)****1. **Ammonotelism**: ഉയർന്ന വിഷാംശമുള്ള അമോണിയ ($NH_3$) പുറന്തള്ളുന്നു, വലിയ ജലത്തിൻ്റെ അളവ് ആവശ്യമാണ് (ജല അകശേരുക്കൾ, അസ്ഥി മത്സ്യങ്ങൾ, ടാഡ്‌പോളുകൾ); 2. **Ureotelism**: ornithine സൈക്കിൾ വഴി (സസ്തനികൾ, ഭൗമ ഉഭയജീവികൾ, cartilaginous സ്രാവുകൾ) വഴി വിഷാംശം കുറഞ്ഞ യൂറിയ പുറന്തള്ളുന്നു; 3. **Uricotelism**: കുറഞ്ഞ ജലനഷ്ടത്തോടെ (പക്ഷികൾ, ഉരഗങ്ങൾ, പ്രാണികൾ, കര ഒച്ചുകൾ)** വിഷാംശമുള്ള യൂറിക് ആസിഡ് പേസ്റ്റ് പുറന്തള്ളുന്നു
B
Birds are ammonotelicപക്ഷികൾ അമനോട്ടെലിക് ആണ്
C
Mammals are uricotelicസസ്തനികൾ യൂറിക്കോട്ടെലിക് ആണ്
D
Fishes excrete uric acidമത്സ്യങ്ങൾ യൂറിക് ആസിഡ് പുറന്തള്ളുന്നു
Correct Answer: Option A
Explanation:
Toxicity and water requirements: Ammonia (most toxic, requires $500\text{ mL } H_2O/\text{g}$) > Urea ($50\text{ mL } H_2O/\text{g}$) > Uric acid (least toxic, $10\text{ mL } H_2O/\text{g}$, insoluble paste).
വിഷാംശവും ജലത്തിൻ്റെ ആവശ്യകതയും: അമോണിയ (ഏറ്റവും വിഷലിപ്തമായത്, $500\text{ mL } H_2O/\text{g}$ ആവശ്യമാണ്) > യൂറിയ ($50\text{ mL } H_2O/\text{g}$) > യൂറിക് ആസിഡ് (കുറഞ്ഞ വിഷം, $10\text{ mL } H_2O/\text{g}$, ലയിക്കാത്ത പേസ്റ്റ്).
Q2
Match excretory organs across diverse animal phyla:
വൈവിധ്യമാർന്ന ജന്തുജാലങ്ങളിലുടനീളം വിസർജ്ജന അവയവങ്ങൾ പൊരുത്തപ്പെടുത്തുക:
A
**1. **Protonephridia (Flame Cells)**: Platyhelminthes, Rotifers, Amphioxus; 2. **Nephridia**: Annelids (Earthworm); 3. **Malpighian Tubules**: Insects (Cockroach); 4. **Antennal / Green Glands**: Crustaceans (Prawn); 5. **Kidneys**: Vertebrates****1. **പ്രോട്ടോനെഫ്രിഡിയ (ഫ്ലേം സെല്ലുകൾ)**: പ്ലാറ്റിഹെൽമിന്തസ്, റോട്ടിഫറുകൾ, ആംഫിയോക്സസ്; 2. **നെഫ്രിഡിയ**: അനെലിഡുകൾ (മൺപുഴു); 3. **Malpighian Tubules**: പ്രാണികൾ (Cockroach); 4. **ആൻ്റണൽ
B
Prawns have Malpighian tubulesകൊഞ്ചുകൾക്ക് മാൽപിജിയൻ ട്യൂബുലുകളുണ്ട്
C
Insects have flame cellsപ്രാണികൾക്ക് ജ്വാല കോശങ്ങളുണ്ട്
D
Earthworms have green glandsമണ്ണിരകൾക്ക് പച്ച ഗ്രന്ഥികളുണ്ട്
Correct Answer: Option A
Explanation:
Evolutionary excretory structures: Flame cells $\to$ Nephridia $\to$ Malpighian tubules $\to$ Antennal glands $\to$ Metanephric kidneys.
പരിണാമപരമായ വിസർജ്ജന ഘടനകൾ: ഫ്ലേം സെല്ലുകൾ $\to$ നെഫ്രിഡിയ $\to$ മാൽപിഗിയൻ ട്യൂബ്യൂളുകൾ $\to$ ആൻ്റിനൽ ഗ്രന്ഥികൾ $\to$ മെറ്റാനെഫ്രിക് വൃക്കകൾ.

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Competitive Edge

Real-Time Clock Awareness & Pacing

समय प्रबंधन एवं गति नियंत्रण

In school examinations, students write answers without active pacing. In national entrance tests, students have barely 45-60 seconds per MCQ. Practicing with a 20-minute timer instills instinctive time-budgeting and prevents last-minute exam panic.

Mastery of the Elimination Technique

विकल्प निष्कासन विधि में दक्षता

Top rankers in competitive exams rarely compute every problem blindly. They spot subtle traps, evaluate extreme values, and eliminate 2 out of 4 distractors within seconds. Our 4-option sets teach critical distractor analysis.

CBT Screen Stamina & Digital Comfort

कंप्यूटर आधारित परीक्षा का सहज अभ्यास

Almost all major national exams (CUET, JEE, NEET, SSC, Banking) are 100% computer-based. Students who only study on paper experience eye strain and navigation mistakes on exam day. Early CBT practice creates effortless digital fluency.

Immunity to Negative Marking

सटीकता और नकारात्मक अंकन से सुरक्षा

Careless errors—such as misreading "NOT" or "EXCEPT"—ruin thousands of competitive aspirations each year. Regular objective testing builds the habit of double-checking question keywords before locking answers.

Instant Diagnostic Feedback Loop

तत्काल त्रुटि निवारण एवं आत्म-मूल्यांकन

Traditional paper tests take weeks to grade, by which time the student has forgotten their thought process. TargetExams provides instant scorecards and step-by-step solutions while the conceptual puzzle is still fresh.

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Syllabus Concepts Evaluated in this Chapter

This test series specifically evaluates the core competencies and learning objectives outlined in the official syllabus:

  • Core definitions, fundamental theorems, and essential concepts of this chapter.
  • Step-by-step mathematical reasoning and deductive problem-solving.
  • Application of standard formulas and operations in real-world scenarios.
  • Critical examination of common exam pitfalls and misleading options.
  • Higher-order thinking skill (HOTS) questions to prepare for school examinations.
  • Speed and accuracy mastery under standard timed CBT exam conditions.

Exam Rules & Test Taking Guidelines

  • Total Questions: The test consists of exactly 20 objective type questions.
  • Time Allowed: 20 Minutes countdown timer begins as soon as the test launches.
  • Marking Scheme: +1.0 mark is awarded for each correct answer.
  • Zero Penalty: There is 0.0 negative marking for incorrect or unattempted questions.
  • Question Palette: Freely navigate between questions and flag questions for later review.
  • Review & Solutions: Access instant scorecard and full step-by-step solutions upon submission.

Frequently Asked Questions (FAQs)

Yes! Foundation Practice Set 01 for every chapter in Directorate of Higher Secondary Education (DHSE Kerala) Class XI Biology is 100% free to attempt. Students can test their knowledge without any payment or hidden fees.
This page is dedicated to English Medium. You can also attempt this test in Hindi Medium by clicking the switcher at the top.
Absolutely. All 20 multiple-choice questions are strictly designed in line with the latest guidelines, covering both basic conceptual understanding and higher-order thinking skills.
The test contains 20 MCQs to be solved in 20 minutes. Each question carries +1.0 mark for a correct answer, and there is zero (0.0) negative marking for incorrect answers.
Yes. Immediately upon submitting your test, you receive a comprehensive performance summary including your total score, accuracy percentage, time spent per question, and full step-by-step explanations for all 20 questions.

Practice Sets in this Chapter

Set 01 (Foundation)

20 MCQs • 20 Mins
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Set 02 (Advanced)

20 MCQs • 20 Mins
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More Chapters in this Subject

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Excretory Products and their Elimination (Set 01 (Foundation Level))
20 MCQs • 20 Mins • 100% Free Practice Test

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