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How are the onion cells arranged when seen under a microscope?
When viewed under a microscope, onion peel cells look like brick-like rectangular boxes arranged side by side. They form a tightly packed organized structure. Each cell has a clear outer boundary (cell wall), a nucleus stained with dye and visible cytoplasm. This pattern highlights how plant cells aRead more
When viewed under a microscope, onion peel cells look like brick-like rectangular boxes arranged side by side. They form a tightly packed organized structure. Each cell has a clear outer boundary (cell wall), a nucleus stained with dye and visible cytoplasm. This pattern highlights how plant cells are structured and connected in tissues for support and 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 similarities are seen between a brick wall and plant cells?
Plant cells, when seen under a microscope, resemble bricks laid in a wall. They are rectangular and tightly packed, forming layers of tissue. Each cell has a rigid cell wall that gives it shape and strength, just as bricks do in construction. This arrangement helps provide support to plant organs liRead more
Plant cells, when seen under a microscope, resemble bricks laid in a wall. They are rectangular and tightly packed, forming layers of tissue. Each cell has a rigid cell wall that gives it shape and strength, just as bricks do in construction. This arrangement helps provide support to plant organs like leaves and stems, making the comparison very accurate.
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 stain is used to observe cheek cells and why?
To observe cheek cells under a microscope, methylene blue is commonly used. This stain binds to the nucleus and other internal components, giving them a bluish color. Since cheek cells are nearly transparent, staining helps differentiate between various structures and makes the nucleus especially viRead more
To observe cheek cells under a microscope, methylene blue is commonly used. This stain binds to the nucleus and other internal components, giving them a bluish color. Since cheek cells are nearly transparent, staining helps differentiate between various structures and makes the nucleus especially visible. This enhances clarity and helps students understand the structure of animal cells better.
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 is glycerin added after staining the cheek cells?
After staining cheek cells with methylene blue, glycerin is added to preserve the cells during microscopic observation. It keeps the cells hydrated, preventing them from shrinking or drying. It also helps the cover slip stay fixed, avoiding movement of the sample. Glycerin improves image clarity andRead more
After staining cheek cells with methylene blue, glycerin is added to preserve the cells during microscopic observation. It keeps the cells hydrated, preventing them from shrinking or drying. It also helps the cover slip stay fixed, avoiding movement of the sample. Glycerin improves image clarity and maintains the original shape and structure of the cells for better learning.
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 shape of human cheek cells as observed under the microscope?
Under the microscope, human cheek cells are seen as flat, irregular or oval-shaped. They are animal cells, so they do not have a rigid cell wall. After staining with methylene blue, their central nucleus becomes clearly visible. The cytoplasm surrounds the nucleus and the cell membrane defines the oRead more
Under the microscope, human cheek cells are seen as flat, irregular or oval-shaped. They are animal cells, so they do not have a rigid cell wall. After staining with methylene blue, their central nucleus becomes clearly visible. The cytoplasm surrounds the nucleus and the cell membrane defines the outer boundary, distinguishing them from plant cells in both shape and structure.
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