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Questions and Answers
What would be the consequences of deficiency of haemoglobin in our body?
What would be the consequences of deficiency of haemoglobin in our body?
A deficiency of haemoglobin reduces the blood's oxygen-carrying capacity, leading to oxygen deficiency in body cells and a disease called anaemia.
Write the chemical equation for the mechanism of photosynthesis.
Write the chemical equation for the mechanism of photosynthesis.
6CO₂ + 12H₂O → C₆H₁₂O₆ + 6H₂O + 6O₂
What is heterotrophic nutrition? Give one example.
What is heterotrophic nutrition? Give one example.
Heterotrophic nutrition occurs when an organism depends partially or wholly on other organisms for food. Examples include Cuscuta, fungi, and bacteria.
Define life process.
Define life process.
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What are the different ways in which glucose is oxidized to provide energy in various organisms? (Select all that apply)
What are the different ways in which glucose is oxidized to provide energy in various organisms? (Select all that apply)
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How are the lungs designed in human beings to maximize the area for exchange of gases?
How are the lungs designed in human beings to maximize the area for exchange of gases?
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Study Notes
Photosynthesis
- Chemical equation: 6CO₂ + 12H₂O → C₆H₁₂O₆ + 6H₂O + 6O₂
- Sunlight and chlorophyll are required.
Heterotrophic Nutrition
- Organisms that obtain food from other organisms
- Examples: Cuscuta, Fungi, Bacteria
Life Processes
- Continuous processes for survival, even while sleeping or resting
Glucose Oxidation
- Different ways organisms oxidize glucose for energy:
- Absence of oxygen (yeast): Ethanol + CO₂ + Energy (2 Carbon molecules)
- Lack of oxygen (muscle cells): Lactic acid + Energy (3 Carbon molecule)
- Presence of oxygen (mitochondria): CO₂ + H₂O + Energy
Lung Design for Gas Exchange
- Air passages divide into smaller tubes (bronchi, bronchioles)
- Alveoli (balloon-like structures) maximize surface area for gas exchange.
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Description
Test your knowledge on key biological processes such as photosynthesis, heterotrophic nutrition, and energy production from glucose. This quiz covers essential concepts like the chemical equations involved and the structure of lungs for gas exchange. Challenge yourself to see how well you understand these life processes!
