Share & grow the world's knowledge!
We want to connect the people who have knowledge to the people who need it, to bring together people with different perspectives so they can understand each other better, and to empower everyone to share their knowledge.
How have technological interventions facilitated the creation of new knowledge in understanding the world beyond the naked eye?
Technological advancements, especially microscopes, have helped scientists study cells that are too small to be seen by the naked eye. Light microscopes provide magnified images, while electron microscopes reveal fine details at the nanometre scale. Improvements in resolution, contrast and magnificaRead more
Technological advancements, especially microscopes, have helped scientists study cells that are too small to be seen by the naked eye. Light microscopes provide magnified images, while electron microscopes reveal fine details at the nanometre scale. Improvements in resolution, contrast and magnification have made it possible to understand cell structure organelles and their functions in great detail.
For more NCERT Solutions of Class 9 Science Exploration Chapter 2 Cell: The Building Block of Life (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-2/
See lessHow does a cell multiply?
Cells multiply by a process called cell division. The parent cell divides into daughter cells through mitosis or meiosis. Mitosis produces identical cells for growth and repair, while meiosis produces gametes for reproduction. This process ensures continuity of life, increases cell number and replacRead more
Cells multiply by a process called cell division. The parent cell divides into daughter cells through mitosis or meiosis. Mitosis produces identical cells for growth and repair, while meiosis produces gametes for reproduction. This process ensures continuity of life, increases cell number and replaces damaged or dead cells in the body.
For more NCERT Solutions of Class 9 Science Exploration Chapter 2 Cell: The Building Block of Life (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-2/
See lessHow is the cell structural and functional unit of life?
The cell is the structural unit as all organisms are made of cells that form tissues and organs. It is the functional unit because all vital processes such as respiration, nutrition, excretion and growth occur within cells. Each cell performs necessary life functions independently or in coordinationRead more
The cell is the structural unit as all organisms are made of cells that form tissues and organs. It is the functional unit because all vital processes such as respiration, nutrition, excretion and growth occur within cells. Each cell performs necessary life functions independently or in coordination, making it essential for survival and functioning of living organisms.
For more NCERT Solutions of Class 9 Science Exploration Chapter 2 Cell: The Building Block of Life (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-2/
See lessWhere does a cell come from?
Cells originate from pre-existing cells through a process called cell division. This idea was proposed by Rudolf Virchow and is part of cell theory. During division, a parent cell divides to form new daughter cells. This process helps in growth, tissue repair and reproduction. No new cell is formedRead more
Cells originate from pre-existing cells through a process called cell division. This idea was proposed by Rudolf Virchow and is part of cell theory. During division, a parent cell divides to form new daughter cells. This process helps in growth, tissue repair and reproduction. No new cell is formed spontaneously; every cell has a cellular origin.
For more NCERT Solutions of Class 9 Science Exploration Chapter 2 Cell: The Building Block of Life (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-2/
See lessWhat argument would you give for the necessity of a cell wall in plants usually fixed in one place versus in animals usually moving from one place to the other?
Plants are fixed in one place and face environmental stresses like wind and pressure, so they need a rigid cell wall for support and protection. The cell wall maintains shape and prevents damage. Animals, however, move and require flexible cells for movement and changing shape. Therefore, animal celRead more
Plants are fixed in one place and face environmental stresses like wind and pressure, so they need a rigid cell wall for support and protection. The cell wall maintains shape and prevents damage. Animals, however, move and require flexible cells for movement and changing shape. Therefore, animal cells lack a cell wall and only have a cell membrane.
For more NCERT Solutions of Class 9 Science Exploration Chapter 2 Cell: The Building Block of Life (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-2/
See less