Chapter Exam

Chapter-10 Living Creatures — Online MCQ Test

Q: Which of the following is a life process essential for all living organisms?

Answer: A. Respiration — Respiration is a fundamental life process in all living organisms for obtaining energy, while flying, walking, and speaking are specific to certain organisms only.

Q: What is the primary purpose of respiration in living organisms?

Answer: B. To release energy from food — Respiration breaks down food to release energy that organisms use for all life activities, not for food production or physical changes.

Q: Which life process is directly responsible for converting food into usable energy?

Answer: B. Respiration — While digestion breaks down food into smaller molecules, respiration is the process that releases energy from these molecules in a form cells can use.

Q: A newly discovered organism exhibits the following: takes in oxygen, releases carbon dioxide, and produces offspring requiring a partner. Based on these observations, which statement CANNOT be determined?

Answer: C. The organism is heterotrophic — While aerobic respiration and sexual reproduction are confirmed, heterotrophy (requiring external food) cannot be determined without knowing the organism's feeding mechanism; plants also respire and some can reproduce sexually.

SCIENCE (CURIOSITY) · CLASS 6th · Karnataka State Board

Practice Chapter-10 Living Creatures with a free chapter-wise online MCQ test for Karnataka State Board CLASS 6th SCIENCE (CURIOSITY). This chapter covers: life processes - respiration - reproduction. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter-10 Living Creatures — Important Questions & Answers (FAQ)

Frequently asked questions from Karnataka State Board CLASS 6th SCIENCE (CURIOSITY) — Chapter-10 Living Creatures, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which of the following is a life process essential for all living organisms?

A. Respiration ✓
B. Flying
C. Walking
D. Speaking

Answer: A. Respiration
Respiration is a fundamental life process in all living organisms for obtaining energy, while flying, walking, and speaking are specific to certain organisms only.

What is the primary purpose of respiration in living organisms?

A. To produce food
B. To release energy from food ✓
C. To grow taller
D. To change body color

Answer: B. To release energy from food
Respiration breaks down food to release energy that organisms use for all life activities, not for food production or physical changes.

Which of the following statements about respiration is TRUE?

A. Respiration occurs only during the day
B. Respiration occurs only in animals, not in plants
C. Respiration occurs in all living organisms continuously ✓
D. Respiration requires sunlight to take place

Answer: C. Respiration occurs in all living organisms continuously
Respiration is a continuous process occurring in both plants and animals throughout the day and night to maintain life.

Which life process is directly responsible for converting food into usable energy?

A. Photosynthesis
B. Respiration ✓
C. Reproduction
D. Digestion

Answer: B. Respiration
While digestion breaks down food into smaller molecules, respiration is the process that releases energy from these molecules in a form cells can use.

A newly discovered organism exhibits the following: takes in oxygen, releases carbon dioxide, and produces offspring requiring a partner. Based on these observations, which statement CANNOT be determined?

A. The organism undergoes respiration
B. The organism reproduces sexually
C. The organism is heterotrophic ✓
D. The organism is likely an animal

Answer: C. The organism is heterotrophic
While aerobic respiration and sexual reproduction are confirmed, heterotrophy (requiring external food) cannot be determined without knowing the organism's feeding mechanism; plants also respire and some can reproduce sexually.