Cell shapes are directly linked to their functions. For instance, neurons have long extensions for transmitting signals, red blood cells are disc-shaped for oxygen transport and skin cells are flat to cover and protect surfaces. This structural diversity allows each cell to efficiently perform its uRead more
Cell shapes are directly linked to their functions. For instance, neurons have long extensions for transmitting signals, red blood cells are disc-shaped for oxygen transport and skin cells are flat to cover and protect surfaces. This structural diversity allows each cell to efficiently perform its unique role in the body, contributing to the organism’s overall survival and well-being.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
In plants, long tubular cells such as xylem vessels carry water and minerals from the roots to other parts of the plant. Their continuous, pipe-like structure helps maintain a steady flow of fluids, supporting photosynthesis and growth. These cells form the plant’s transport system, enabling it to sRead more
In plants, long tubular cells such as xylem vessels carry water and minerals from the roots to other parts of the plant. Their continuous, pipe-like structure helps maintain a steady flow of fluids, supporting photosynthesis and growth. These cells form the plant’s transport system, enabling it to survive and thrive by moving essential substances efficiently across different organs.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
Muscle cells lining the food pipe (oesophagus) are essential for moving food to the stomach. They contract rhythmically in a process called peristalsis, which propels the food downward. Without these cells, swallowing and digestion would be impossible. These muscle cells work involuntarily, meaningRead more
Muscle cells lining the food pipe (oesophagus) are essential for moving food to the stomach. They contract rhythmically in a process called peristalsis, which propels the food downward. Without these cells, swallowing and digestion would be impossible. These muscle cells work involuntarily, meaning they operate without conscious effort, ensuring smooth and continuous movement of food through the digestive system.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
The wave-like movement or peristalsis, occurs when circular and longitudinal muscles in the oesophagus contract and relax in sequence. These contractions create a pushing force that moves food from the throat to the stomach. This process is automatic and controlled by the nervous system, ensuring smRead more
The wave-like movement or peristalsis, occurs when circular and longitudinal muscles in the oesophagus contract and relax in sequence. These contractions create a pushing force that moves food from the throat to the stomach. This process is automatic and controlled by the nervous system, ensuring smooth digestion. Without peristalsis, swallowing and transporting food inside the digestive tract would be difficult.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
The human stomach contains various specialized cells. Some secrete hydrochloric acid to kill microbes and activate digestive enzymes. Others release mucus to protect the stomach lining. Enzyme-producing cells help break down proteins. Muscle cells contract to churn food, enhancing digestion. TogetheRead more
The human stomach contains various specialized cells. Some secrete hydrochloric acid to kill microbes and activate digestive enzymes. Others release mucus to protect the stomach lining. Enzyme-producing cells help break down proteins. Muscle cells contract to churn food, enhancing digestion. Together, these cells create a coordinated system for food processing, ensuring proper nutrient breakdown and absorption.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
How do the shapes of cells relate to their functions?
Cell shapes are directly linked to their functions. For instance, neurons have long extensions for transmitting signals, red blood cells are disc-shaped for oxygen transport and skin cells are flat to cover and protect surfaces. This structural diversity allows each cell to efficiently perform its uRead more
Cell shapes are directly linked to their functions. For instance, neurons have long extensions for transmitting signals, red blood cells are disc-shaped for oxygen transport and skin cells are flat to cover and protect surfaces. This structural diversity allows each cell to efficiently perform its unique role in the body, contributing to the organism’s overall survival and well-being.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessWhat is the function of long tubular cells in plants?
In plants, long tubular cells such as xylem vessels carry water and minerals from the roots to other parts of the plant. Their continuous, pipe-like structure helps maintain a steady flow of fluids, supporting photosynthesis and growth. These cells form the plant’s transport system, enabling it to sRead more
In plants, long tubular cells such as xylem vessels carry water and minerals from the roots to other parts of the plant. Their continuous, pipe-like structure helps maintain a steady flow of fluids, supporting photosynthesis and growth. These cells form the plant’s transport system, enabling it to survive and thrive by moving essential substances efficiently across different organs.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessWhy are muscle cells important in the food pipe?
Muscle cells lining the food pipe (oesophagus) are essential for moving food to the stomach. They contract rhythmically in a process called peristalsis, which propels the food downward. Without these cells, swallowing and digestion would be impossible. These muscle cells work involuntarily, meaningRead more
Muscle cells lining the food pipe (oesophagus) are essential for moving food to the stomach. They contract rhythmically in a process called peristalsis, which propels the food downward. Without these cells, swallowing and digestion would be impossible. These muscle cells work involuntarily, meaning they operate without conscious effort, ensuring smooth and continuous movement of food through the digestive system.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessHow does the wave-like movement in the food pipe occur?
The wave-like movement or peristalsis, occurs when circular and longitudinal muscles in the oesophagus contract and relax in sequence. These contractions create a pushing force that moves food from the throat to the stomach. This process is automatic and controlled by the nervous system, ensuring smRead more
The wave-like movement or peristalsis, occurs when circular and longitudinal muscles in the oesophagus contract and relax in sequence. These contractions create a pushing force that moves food from the throat to the stomach. This process is automatic and controlled by the nervous system, ensuring smooth digestion. Without peristalsis, swallowing and transporting food inside the digestive tract would be difficult.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See lessWhat roles do different cells play inside the human stomach?
The human stomach contains various specialized cells. Some secrete hydrochloric acid to kill microbes and activate digestive enzymes. Others release mucus to protect the stomach lining. Enzyme-producing cells help break down proteins. Muscle cells contract to churn food, enhancing digestion. TogetheRead more
The human stomach contains various specialized cells. Some secrete hydrochloric acid to kill microbes and activate digestive enzymes. Others release mucus to protect the stomach lining. Enzyme-producing cells help break down proteins. Muscle cells contract to churn food, enhancing digestion. Together, these cells create a coordinated system for food processing, ensuring proper nutrient breakdown and absorption.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/science/
See less