The increase in plant girth occurs because lateral meristematic cells divide repeatedly. These actively dividing cells produce new cells towards the inner and outer sides of the stem in concentric layers. As more cells are added, the stem becomes thicker. This process also forms annual growth ringsRead more
The increase in plant girth occurs because lateral meristematic cells divide repeatedly. These actively dividing cells produce new cells towards the inner and outer sides of the stem in concentric layers. As more cells are added, the stem becomes thicker. This process also forms annual growth rings and provides strength and support to older plants and trees.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
Plants regrow after being cut due to intercalary meristem present near nodes and internodes. These actively dividing cells continue producing new tissues even after the shoot tip is removed. As a result, new branches and shoots develop again. This ability helps grasses, hedges and many plants regeneRead more
Plants regrow after being cut due to intercalary meristem present near nodes and internodes. These actively dividing cells continue producing new tissues even after the shoot tip is removed. As a result, new branches and shoots develop again. This ability helps grasses, hedges and many plants regenerate quickly after cutting, mowing or grazing by animals.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
Meristematic tissue cells do not contain large vacuoles because they remain actively involved in continuous cell division. These cells require dense cytoplasm and sufficient space for rapid metabolic activities. Vacuoles mainly store materials and occupy large space, which could slow cell division.Read more
Meristematic tissue cells do not contain large vacuoles because they remain actively involved in continuous cell division. These cells require dense cytoplasm and sufficient space for rapid metabolic activities. Vacuoles mainly store materials and occupy large space, which could slow cell division. Therefore, absence of vacuoles helps meristematic cells divide quickly and efficiently for plant growth and development.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
A cell is the building block of life because it is the smallest unit capable of performing all vital functions. All organisms, whether unicellular or multicellular, are made of cells. Cells combine to form tissues, tissues form organs and organs form systems. Even in complex organisms, cells remainRead more
A cell is the building block of life because it is the smallest unit capable of performing all vital functions. All organisms, whether unicellular or multicellular, are made of cells. Cells combine to form tissues, tissues form organs and organs form systems. Even in complex organisms, cells remain the basic structural and functional unit of life.
For more NCERT Solutions of Class 9 Science Exploration Chapter 2 Cell: The Building Block of Life (2026-27)
Cells are studied using microscopes, as they are smaller than the resolution limit of the human eye. Light microscopes provide basic magnification, while electron microscopes reveal detailed internal structures. Scientists prepare slides, stain cells and observe them under microscopes. These tools hRead more
Cells are studied using microscopes, as they are smaller than the resolution limit of the human eye. Light microscopes provide basic magnification, while electron microscopes reveal detailed internal structures. Scientists prepare slides, stain cells and observe them under microscopes. These tools help in understanding cell size, structure organelles and their functions effectively.
For more NCERT Solutions of Class 9 Science Exploration Chapter 2 Cell: The Building Block of Life (2026-27)
What causes this increase in girth?
The increase in plant girth occurs because lateral meristematic cells divide repeatedly. These actively dividing cells produce new cells towards the inner and outer sides of the stem in concentric layers. As more cells are added, the stem becomes thicker. This process also forms annual growth ringsRead more
The increase in plant girth occurs because lateral meristematic cells divide repeatedly. These actively dividing cells produce new cells towards the inner and outer sides of the stem in concentric layers. As more cells are added, the stem becomes thicker. This process also forms annual growth rings and provides strength and support to older plants and trees.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-3/
See lessHow do plants grow after being cut?
Plants regrow after being cut due to intercalary meristem present near nodes and internodes. These actively dividing cells continue producing new tissues even after the shoot tip is removed. As a result, new branches and shoots develop again. This ability helps grasses, hedges and many plants regeneRead more
Plants regrow after being cut due to intercalary meristem present near nodes and internodes. These actively dividing cells continue producing new tissues even after the shoot tip is removed. As a result, new branches and shoots develop again. This ability helps grasses, hedges and many plants regenerate quickly after cutting, mowing or grazing by animals.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-3/
See lessWhy do you think that the cell of meristematic tissues lack vacuoles?
Meristematic tissue cells do not contain large vacuoles because they remain actively involved in continuous cell division. These cells require dense cytoplasm and sufficient space for rapid metabolic activities. Vacuoles mainly store materials and occupy large space, which could slow cell division.Read more
Meristematic tissue cells do not contain large vacuoles because they remain actively involved in continuous cell division. These cells require dense cytoplasm and sufficient space for rapid metabolic activities. Vacuoles mainly store materials and occupy large space, which could slow cell division. Therefore, absence of vacuoles helps meristematic cells divide quickly and efficiently for plant growth and development.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-3/
See lessCell is The Building Block of Life. Explain.
A cell is the building block of life because it is the smallest unit capable of performing all vital functions. All organisms, whether unicellular or multicellular, are made of cells. Cells combine to form tissues, tissues form organs and organs form systems. Even in complex organisms, cells remainRead more
A cell is the building block of life because it is the smallest unit capable of performing all vital functions. All organisms, whether unicellular or multicellular, are made of cells. Cells combine to form tissues, tissues form organs and organs form systems. Even in complex organisms, cells remain the basic structural and functional unit of life.
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 to Study Cells?
Cells are studied using microscopes, as they are smaller than the resolution limit of the human eye. Light microscopes provide basic magnification, while electron microscopes reveal detailed internal structures. Scientists prepare slides, stain cells and observe them under microscopes. These tools hRead more
Cells are studied using microscopes, as they are smaller than the resolution limit of the human eye. Light microscopes provide basic magnification, while electron microscopes reveal detailed internal structures. Scientists prepare slides, stain cells and observe them under microscopes. These tools help in understanding cell size, structure organelles and their functions effectively.
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