Class 10 • Biology • Chapter 5
Life Processes
True & False Quiz
Nutrition. Respiration. Transport.
✓True
✗False
25
Questions
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Ch.5
Chapter
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X
Class
Why True & False for Life Processes?
How this format sharpens your conceptual clarity
🔵 Life processes are the fundamental functions that distinguish living organisms — nutrition, respiration, transport, and excretion.
✅ T/F tests aerobic vs anaerobic respiration, autotrophs vs heterotrophs, double circulation, and kidney function.
🎯 Photosynthesis occurs in CHLOROPLASTS (not the whole cell); respiration occurs in MITOCHONDRIA — compartment matters.
📋
Read each statement carefully. Click True or False — instant feedback with explanation appears. Submit anytime; unattempted questions are marked Skipped.
Q 1
Respiration only occurs in animals.
Q 2
Photosynthesis happens in the mitochondria of plant cells.
Q 3
During photosynthesis, plants take in carbon dioxide and release oxygen.
Q 4
Stomata are responsible for gas exchange in leaves.
Q 5
Anaerobic respiration produces more energy than aerobic respiration.
Q 6
Saliva contains enzymes that help in the digestion of starch.
Q 7
Blood plasma is mainly water.
Q 8
Arteries carry blood away from the heart.
Q 9
The large intestine is responsible for nutrient absorption.
Q 10
Xylem transports water and minerals in plants.
Q 11
Guard cells help control the opening and closing of stomata.
Q 12
The pulmonary vein carries oxygenated blood.
Q 13
Peristalsis is the process by which urine is formed.
Q 14
Photosynthesis is an exothermic reaction.
Q 15
The nephron is the functional unit of the kidney.
Q 16
Hemoglobin helps transport carbon dioxide in blood.
Q 17
Alveoli increase the surface area for gas exchange in the lungs.
Q 18
Transpiration occurs through stems and roots only.
Q 19
Enzymes speed up chemical reactions during digestion.
Q 20
Platelets are important for blood clotting.
Q 21
Excretion in humans is only performed by the kidneys.
Q 22
Chlorophyll is necessary for photosynthesis in plants.
Q 23
Glucose is the main source of energy for cells.
Q 24
The heart has four chambers.
Q 25
Liver helps in detoxification and produces bile.
Key Takeaways — Life Processes
Core facts for CBSE Boards & exams
1
Photosynthesis: 6CO₂ + 6H₂O + light → C₂H₂O₂ + 6O₂ (in chloroplasts).
2
Aerobic respiration: C₂H₂O₂ + 6O₂ → 6CO₂ + 6H₂O + ATP (38 ATP).
3
Anaerobic (yeast): glucose → ethanol + CO₂; (muscle): glucose → lactic acid.
4
Double circulation: blood passes through heart TWICE per circuit (pulmonary + systemic).
5
Xylem: water and minerals (upward); Phloem: food/sugar (bidirectional).
6
Kidney filters blood; nephron is the functional unit; urine = urea + water + salts.