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Nutrition
Autotrophic 
Nutrition
De?nition: Organisms 
synthesize their own food 
from simple substances.
Examples: Green 
plants and some 
bacteria.
Photosynthesis process: 
Conversion of CO2 
and water into 
carbohydrates.
Heterotrophic 
Nutrition
De?nition: Organisms 
depend on other 
organisms for food.
Examples: Animals, fungi.
Types: 
Saprophytic: 
Decomposers 
like fungi.
Parasitic: Organisms 
like ticks, lice.
Respiration
Aerobic 
Respiration
De?nition: Breakdown 
of glucose in the 
presence of oxygen.
Location: Mitochondria.
Products: CO2, 
water, and energy.
Anaerobic 
Respiration
De?nition: Breakdown 
of glucose 
without oxygen.
Examples: Yeast 
(produces ethanol and CO2), 
muscles (produces lactic acid).
Heart and Blood Vessels: 
Transport oxygen, nutrients, 
and waste.
Transportation
In Human 
Beings
Double Circulation: 
Blood passes twice 
through the heart.
In 
Plants
Xylem: Transports 
water and minerals.
Phloem: Transports 
food and other 
substances.
Excretion
In Human 
Beings
Nephrons: The functional 
units of the kidneys.
In 
Plants
Excrete gases 
(O2, CO2) via stomata.
Waste stored in 
vacuoles or expelled 
through falling leaves.
Life 
Processes
  
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FAQs on Mindmap: Life Processes - Science Class 10

1. What are the main life processes essential for the survival of living organisms?
Ans. The main life processes essential for the survival of living organisms include nutrition, respiration, transportation, excretion, reproduction, and growth. These processes help organisms to maintain their internal environment and ensure their survival in various conditions.
2. How does nutrition differ in plants and animals?
Ans. Nutrition in plants primarily involves photosynthesis, where they convert sunlight, carbon dioxide, and water into glucose and oxygen. In contrast, animals obtain nutrition by consuming other organisms or organic matter, breaking it down into simpler substances to extract energy and nutrients.
3. What is the role of respiration in living organisms?
Ans. Respiration is a vital process that involves the conversion of glucose and oxygen into energy, carbon dioxide, and water. This energy is essential for carrying out various biological activities, growth, and maintaining metabolic functions in living organisms.
4. Why is excretion important for living organisms?
Ans. Excretion is crucial because it helps to remove waste products generated from metabolic processes. Accumulation of these wastes can be toxic to cells, so excretion ensures that organisms maintain a stable internal environment, which is essential for their health and functionality.
5. How do reproduction and growth contribute to the continuity of life?
Ans. Reproduction ensures the continuation of a species by producing offspring, while growth involves an increase in size and development of organisms. Together, these processes contribute to the survival and evolution of species, allowing them to adapt to changing environments over generations.
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