In the stomach, acid-producing cells secrete hydrochloric acid (HCl), creating an acidic environment necessary for digestion. HCl activates the enzyme pepsinogen into pepsin, which helps break down proteins. It also kills harmful bacteria ingested with food, making digestion safer and more effectiveRead more
In the stomach, acid-producing cells secrete hydrochloric acid (HCl), creating an acidic environment necessary for digestion. HCl activates the enzyme pepsinogen into pepsin, which helps break down proteins. It also kills harmful bacteria ingested with food, making digestion safer and more effective. These cells are crucial for maintaining proper digestive function.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
Muscle cells in the stomach wall create strong, rhythmic contractions that mix ingested food with digestive enzymes and acids. This mechanical digestion breaks down food particles and enhances enzyme action. The churning action ensures the food is fully processed before entering the intestines for nRead more
Muscle cells in the stomach wall create strong, rhythmic contractions that mix ingested food with digestive enzymes and acids. This mechanical digestion breaks down food particles and enhances enzyme action. The churning action ensures the food is fully processed before entering the intestines for nutrient absorption. Without these muscle movements, digestion would be incomplete and inefficient.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
Muscle cells are elongated and spindle-shaped, allowing them to contract and relax during movement. Nerve cells (neurons), in contrast, have long, thread-like extensions called axons and dendrites. This unique structure helps them carry electrical signals over long distances. These distinct shapes rRead more
Muscle cells are elongated and spindle-shaped, allowing them to contract and relax during movement. Nerve cells (neurons), in contrast, have long, thread-like extensions called axons and dendrites. This unique structure helps them carry electrical signals over long distances. These distinct shapes reflect their specialized functions—muscles in movement and nerves in communication throughout the body.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
The elongated shape of a nerve cell is essential for its function. It enables the rapid transmission of electrical impulses across the body—from the brain and spinal cord to muscles and organs. The long axon acts like a wire, carrying signals efficiently, while dendrites receive incoming messages. TRead more
The elongated shape of a nerve cell is essential for its function. It enables the rapid transmission of electrical impulses across the body—from the brain and spinal cord to muscles and organs. The long axon acts like a wire, carrying signals efficiently, while dendrites receive incoming messages. This design supports fast communication and response in the nervous system.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
Animal cells vary in shape and size depending on their role in the body. For example, red blood cells are disc-shaped to move through vessels, muscle cells are long to contract and nerve cells are branched to transmit signals. This variety allows for specialization, enabling different types of cellsRead more
Animal cells vary in shape and size depending on their role in the body. For example, red blood cells are disc-shaped to move through vessels, muscle cells are long to contract and nerve cells are branched to transmit signals. This variety allows for specialization, enabling different types of cells to perform specific tasks essential for survival and body function.
For more NCERT Solutions for Class 8 Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye Extra Questions & Answer:
How do acid-producing cells help in digestion?
In the stomach, acid-producing cells secrete hydrochloric acid (HCl), creating an acidic environment necessary for digestion. HCl activates the enzyme pepsinogen into pepsin, which helps break down proteins. It also kills harmful bacteria ingested with food, making digestion safer and more effectiveRead more
In the stomach, acid-producing cells secrete hydrochloric acid (HCl), creating an acidic environment necessary for digestion. HCl activates the enzyme pepsinogen into pepsin, which helps break down proteins. It also kills harmful bacteria ingested with food, making digestion safer and more effective. These cells are crucial for maintaining proper digestive function.
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 functions do muscle cells perform in the stomach wall?
Muscle cells in the stomach wall create strong, rhythmic contractions that mix ingested food with digestive enzymes and acids. This mechanical digestion breaks down food particles and enhances enzyme action. The churning action ensures the food is fully processed before entering the intestines for nRead more
Muscle cells in the stomach wall create strong, rhythmic contractions that mix ingested food with digestive enzymes and acids. This mechanical digestion breaks down food particles and enhances enzyme action. The churning action ensures the food is fully processed before entering the intestines for nutrient absorption. Without these muscle movements, digestion would be incomplete and inefficient.
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 shape of a muscle cell differ from that of a nerve cell?
Muscle cells are elongated and spindle-shaped, allowing them to contract and relax during movement. Nerve cells (neurons), in contrast, have long, thread-like extensions called axons and dendrites. This unique structure helps them carry electrical signals over long distances. These distinct shapes rRead more
Muscle cells are elongated and spindle-shaped, allowing them to contract and relax during movement. Nerve cells (neurons), in contrast, have long, thread-like extensions called axons and dendrites. This unique structure helps them carry electrical signals over long distances. These distinct shapes reflect their specialized functions—muscles in movement and nerves in communication throughout the body.
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 importance of the elongated shape of a nerve cell?
The elongated shape of a nerve cell is essential for its function. It enables the rapid transmission of electrical impulses across the body—from the brain and spinal cord to muscles and organs. The long axon acts like a wire, carrying signals efficiently, while dendrites receive incoming messages. TRead more
The elongated shape of a nerve cell is essential for its function. It enables the rapid transmission of electrical impulses across the body—from the brain and spinal cord to muscles and organs. The long axon acts like a wire, carrying signals efficiently, while dendrites receive incoming messages. This design supports fast communication and response in the nervous 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 lessWhy are animal cells found in different shapes and sizes?
Animal cells vary in shape and size depending on their role in the body. For example, red blood cells are disc-shaped to move through vessels, muscle cells are long to contract and nerve cells are branched to transmit signals. This variety allows for specialization, enabling different types of cellsRead more
Animal cells vary in shape and size depending on their role in the body. For example, red blood cells are disc-shaped to move through vessels, muscle cells are long to contract and nerve cells are branched to transmit signals. This variety allows for specialization, enabling different types of cells to perform specific tasks essential for survival and body function.
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