6 Questions
Which of the following is the primary function of the respiratory system?
Exchanging oxygen and carbon dioxide
Which structure in the human body is responsible for filtering waste products from the blood?
Kidneys
What is the role of chlorophyll in plant cells?
Absorbing sunlight for photosynthesis
Which of the following is a common method for controlling the growth of harmful microorganisms?
Sterilization using high temperatures
Which process involves the conversion of sugar into alcohol and carbon dioxide by yeast?
Fermentation
What is the primary function of microorganisms in soil?
Enhancing the nutrient content of the soil
Study Notes
Respiratory System
- The primary function of the respiratory system is to facilitate the exchange of oxygen and carbon dioxide between the body and the environment.
Excretory System
- The kidneys are responsible for filtering waste products from the blood.
Plant Cells
- Chlorophyll plays a crucial role in plant cells as it enables photosynthesis, which is the process of converting light energy into chemical energy.
Microorganisms
- A common method for controlling the growth of harmful microorganisms is sterilization.
- Microorganisms in soil play a vital role in decomposing organic matter, fixing nitrogen, and solubilizing minerals, making them essential for soil fertility and plant growth.
Fermentation
- Yeast converts sugar into alcohol and carbon dioxide through the process of fermentation.
Test your knowledge of the primary function of the respiratory system, the structure responsible for filtering waste products from the blood, and the role of chlorophyll in plant cells with this Class 8 biology quiz.
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