Chapter Exam

Chapter 4: Excretion – The Waste-Disposing System — Online MCQ Test

Q: What is the main function of the human excretory system?

Answer: B. To remove metabolic wastes from the body — The excretory system removes metabolic wastes like urea and maintains internal balance in the body.

Q: Which part of the kidney is the basic structural and functional unit?

Answer: C. Nephron — Each kidney is made up of many nephrons, and each nephron carries out urine formation.

Q: Which process in the nephron involves the removal of useful substances like glucose and water from the filtrate back into blood?

Answer: B. Reabsorption — Reabsorption takes back useful substances from the filtrate into the blood capillaries.

BIOLOGY · CLASS 10th · Telangana State Board

Practice Chapter 4: Excretion – The Waste-Disposing System with a free chapter-wise online MCQ test for Telangana State Board CLASS 10th BIOLOGY. This chapter covers: Diving into metabolic waste removal this chapter focuses on how organisms maintain homeostasis. It details the anatomy of the human excretory system specifically the internal struc.... AI-generated questions from basic to board-exam level, with instant results and explanations.

Questions

20m

Time Limit

Attempts Left

10 random questions from this chapter (mixed difficulty)
Questions you've seen before won't repeat until the pool resets
You have 20 minutes — exam auto-submits when time is up
Maximum 3 attempts per chapter
Results and explanations shown immediately after submission

New here? Register free — includes 3 free chapter exams.

Chapter 4: Excretion – The Waste-Disposing System — Important Questions & Answers (FAQ)

Frequently asked questions from Telangana State Board CLASS 10th BIOLOGY — Chapter 4: Excretion – The Waste-Disposing System, with answers and explanations. These are sample questions; the exam has its own separate question set.

What is the main function of the human excretory system?

A. To digest food
B. To remove metabolic wastes from the body ✓
C. To transport oxygen
D. To produce hormones

Answer: B. To remove metabolic wastes from the body
The excretory system removes metabolic wastes like urea and maintains internal balance in the body.

Which part of the kidney is the basic structural and functional unit?

A. Neuron
B. Alveolus
C. Nephron ✓
D. Villus

Answer: C. Nephron
Each kidney is made up of many nephrons, and each nephron carries out urine formation.

Which process in the nephron involves the removal of useful substances like glucose and water from the filtrate back into blood?

A. Filtration
B. Reabsorption ✓
C. Secretion
D. Evaporation

Answer: B. Reabsorption
Reabsorption takes back useful substances from the filtrate into the blood capillaries.

A student says, 'Dialysis removes wastes from blood by passing it through a semipermeable membrane.' Which statement best explains why this works?

A. Only red blood cells can pass through the membrane
B. Small waste molecules pass out, while blood cells and proteins are retained ✓
C. All blood components pass through equally
D. The membrane converts wastes into useful substances

Answer: B. Small waste molecules pass out, while blood cells and proteins are retained
In dialysis, small molecules like urea diffuse out through a semipermeable membrane, while larger components remain in the blood.

Which of the following is the most correct comparison between excretion in humans and in plants?

A. Humans excrete wastes through kidneys, while plants store some wastes as gums, resins, and alkaloids ✓
B. Humans store wastes as gums, while plants use kidneys
C. Both humans and plants use nephrons
D. Plants produce urea as a major excretory product

Answer: A. Humans excrete wastes through kidneys, while plants store some wastes as gums, resins, and alkaloids
Humans have specialized excretory organs, whereas plants often store or eliminate wastes as secondary metabolites like gums and resins.

← Previous Chapter

Chapter 3: Transportation – The Circulatory System

Next Chapter →

Chapter 5: Coordination – The Linking System