CBSE Class 10 Biology: Life Processes
50 Quick Revision
CBSE ClassFlashcards
10 Biology:(NCERT Based) | Board Exam Notes
Life Processes
50
BoardQuick Revision
Exam Ready Flashcards
| Important Concepts, (NCERT Based)
Definitions & MCQs
Board Exam Ready | Important Concepts, Definitions & MCQs
Why This Flashcard Set?
✔ Quick Revision Before Exams: Designed to help you revise the entire chapter in minutes.
✔ NCERT-Based Concepts: Fully aligned with the latest CBSE Class 10 Science syllabus.
✔ Easy-to-Understand Answers: Simplified language without complex, confusing jargon.
✔ Important Definitions & Key Concepts: Covers every major system, equation, and definition.
✔ Perfect for Last-Minute Study: Crisp, short answers tailored for quick memory recall.
Section 1: Introduction to Life Processes
FRONT OF CARD (QUESTION) BACK OF CARD (ANSWER)
1. What are life processes? The basic essential functions performed by living organisms
to maintain their life on Earth, such as nutrition, respiration,
transportation, and excretion.
2. Why is molecular movement necessary Living structures are made of molecules that constantly
for life? break down. Molecular movement repairs this damage and
keeps cells functional.
3. Why is simple diffusion insufficient for Multicellular organisms are large and most cells are not in
multicellular organisms? direct contact with the environment. Diffusion is too slow to
supply oxygen to all cells.
4. What is the main source of energy for life Carbon-based molecules (like glucose) obtained from food
on Earth? sources.
5. Name the four major life processes Nutrition, Respiration, Transportation, and Excretion.
studied in Class 10.
CBSE Class 10 Biology: Life Processes Flashcards 1
, Section 2: Nutrition (Autotrophic & Heterotrophic)
FRONT OF CARD (QUESTION) BACK OF CARD (ANSWER)
6. What is nutrition? The process by which an organism takes in food and utilizes
it to obtain energy for growth, repair, and maintenance.
7. What is autotrophic nutrition? A type of nutrition where organisms prepare their own food
from simple inorganic materials (like CO2 and water) using
sunlight.
8. What is the chemical equation for
6CO2 + 12H2O → C6H12O6 + 6O2 + 6H2O
photosynthesis?
(in the presence of Chlorophyll & Sunlight)
9. Where does photosynthesis take place in Inside the chloroplasts, which contain the green light-
a plant cell? absorbing pigment called chlorophyll.
10. What are the three main steps of 1. Absorption of light energy by chlorophyll.
photosynthesis? 2. Conversion of light to chemical energy and splitting of
water.
3. Reduction of carbon dioxide to carbohydrates.
11. What is the role of stomata? They are tiny pores on leaves that allow massive gas
gas exchange
exchange (CO2 and O2) and help in transpiration.
gas exchange
12. How do guard cells control stomata? Guard cells swell when water flows into them, opening the
pore. They shrink when water leaves, closing the pore.
13. How do plants store extra They store it in the form of starch, which serves as an
carbohydrates? internal energy reserve.
14. How do animals store extra They store it in the liver and muscles in the form of
carbohydrates? glycogen.
15. What is heterotrophic nutrition? A mode of nutrition where organisms cannot make their own
food and depend directly or indirectly on autotrophs.
16. What is saprophytic nutrition? A mode of nutrition where organisms break down and
absorb dead and decaying organic matter outside the body
(e.g., fungi, bread moulds).
CBSE Class 10 Biology: Life Processes Flashcards 2
50 Quick Revision
CBSE ClassFlashcards
10 Biology:(NCERT Based) | Board Exam Notes
Life Processes
50
BoardQuick Revision
Exam Ready Flashcards
| Important Concepts, (NCERT Based)
Definitions & MCQs
Board Exam Ready | Important Concepts, Definitions & MCQs
Why This Flashcard Set?
✔ Quick Revision Before Exams: Designed to help you revise the entire chapter in minutes.
✔ NCERT-Based Concepts: Fully aligned with the latest CBSE Class 10 Science syllabus.
✔ Easy-to-Understand Answers: Simplified language without complex, confusing jargon.
✔ Important Definitions & Key Concepts: Covers every major system, equation, and definition.
✔ Perfect for Last-Minute Study: Crisp, short answers tailored for quick memory recall.
Section 1: Introduction to Life Processes
FRONT OF CARD (QUESTION) BACK OF CARD (ANSWER)
1. What are life processes? The basic essential functions performed by living organisms
to maintain their life on Earth, such as nutrition, respiration,
transportation, and excretion.
2. Why is molecular movement necessary Living structures are made of molecules that constantly
for life? break down. Molecular movement repairs this damage and
keeps cells functional.
3. Why is simple diffusion insufficient for Multicellular organisms are large and most cells are not in
multicellular organisms? direct contact with the environment. Diffusion is too slow to
supply oxygen to all cells.
4. What is the main source of energy for life Carbon-based molecules (like glucose) obtained from food
on Earth? sources.
5. Name the four major life processes Nutrition, Respiration, Transportation, and Excretion.
studied in Class 10.
CBSE Class 10 Biology: Life Processes Flashcards 1
, Section 2: Nutrition (Autotrophic & Heterotrophic)
FRONT OF CARD (QUESTION) BACK OF CARD (ANSWER)
6. What is nutrition? The process by which an organism takes in food and utilizes
it to obtain energy for growth, repair, and maintenance.
7. What is autotrophic nutrition? A type of nutrition where organisms prepare their own food
from simple inorganic materials (like CO2 and water) using
sunlight.
8. What is the chemical equation for
6CO2 + 12H2O → C6H12O6 + 6O2 + 6H2O
photosynthesis?
(in the presence of Chlorophyll & Sunlight)
9. Where does photosynthesis take place in Inside the chloroplasts, which contain the green light-
a plant cell? absorbing pigment called chlorophyll.
10. What are the three main steps of 1. Absorption of light energy by chlorophyll.
photosynthesis? 2. Conversion of light to chemical energy and splitting of
water.
3. Reduction of carbon dioxide to carbohydrates.
11. What is the role of stomata? They are tiny pores on leaves that allow massive gas
gas exchange
exchange (CO2 and O2) and help in transpiration.
gas exchange
12. How do guard cells control stomata? Guard cells swell when water flows into them, opening the
pore. They shrink when water leaves, closing the pore.
13. How do plants store extra They store it in the form of starch, which serves as an
carbohydrates? internal energy reserve.
14. How do animals store extra They store it in the liver and muscles in the form of
carbohydrates? glycogen.
15. What is heterotrophic nutrition? A mode of nutrition where organisms cannot make their own
food and depend directly or indirectly on autotrophs.
16. What is saprophytic nutrition? A mode of nutrition where organisms break down and
absorb dead and decaying organic matter outside the body
(e.g., fungi, bread moulds).
CBSE Class 10 Biology: Life Processes Flashcards 2
