Different cells and tissues exist because living organisms perform various complex activities. Through differentiation, cells develop specialised structures suited for specific functions such as transport, support, protection, movement and coordination. This specialisation creates division of labourRead more
Different cells and tissues exist because living organisms perform various complex activities. Through differentiation, cells develop specialised structures suited for specific functions such as transport, support, protection, movement and coordination. This specialisation creates division of labour among tissues and organs. As a result, body functions become more organised, efficient and coordinated in multicellular plants and animals.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
Plants are protected by the epidermis, the outermost protective tissue covering all plant parts. Its tightly packed cells and waxy cuticle prevent excessive water loss and protect against mechanical damage, microorganisms and environmental stress. Root hairs increase absorption of water and mineralsRead more
Plants are protected by the epidermis, the outermost protective tissue covering all plant parts. Its tightly packed cells and waxy cuticle prevent excessive water loss and protect against mechanical damage, microorganisms and environmental stress. Root hairs increase absorption of water and minerals, while stomata help in gaseous exchange and transpiration, supporting proper functioning and survival of plants.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
Plants remain upright due to supporting tissues like parenchyma, collenchyma and sclerenchyma. Fresh twigs bend because flexible collenchyma supports them, while dry twigs break because they lose flexibility. Sclerenchyma makes seed coats hard and strong due to lignin deposition. In aquatic plants,Read more
Plants remain upright due to supporting tissues like parenchyma, collenchyma and sclerenchyma. Fresh twigs bend because flexible collenchyma supports them, while dry twigs break because they lose flexibility. Sclerenchyma makes seed coats hard and strong due to lignin deposition. In aquatic plants, specialised parenchyma contains air spaces that reduce weight and help plants float on water.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
Coconut husk fibres are hard and brittle because they mainly contain sclerenchyma tissue with thick lignified cell walls that provide strength and rigidity. In contrast, coriander leaf stalks contain collenchyma tissue with pectin-rich uneven walls. This tissue gives flexibility and support, allowinRead more
Coconut husk fibres are hard and brittle because they mainly contain sclerenchyma tissue with thick lignified cell walls that provide strength and rigidity. In contrast, coriander leaf stalks contain collenchyma tissue with pectin-rich uneven walls. This tissue gives flexibility and support, allowing the stalks to bend easily without breaking during movement or external pressure.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
Water reaches the leaves of tall trees through xylem tissue. Xylem vessels and tracheids form long tubular pathways that transport water and minerals from roots upward. Transpiration from leaf stomata creates a pulling force called transpiration pull, which helps move water against gravity. This cooRead more
Water reaches the leaves of tall trees through xylem tissue. Xylem vessels and tracheids form long tubular pathways that transport water and minerals from roots upward. Transpiration from leaf stomata creates a pulling force called transpiration pull, which helps move water against gravity. This coordinated process ensures continuous water supply to leaves for photosynthesis and other activities.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
What might be the reason for the presence of different types of cells and tissues?
Different cells and tissues exist because living organisms perform various complex activities. Through differentiation, cells develop specialised structures suited for specific functions such as transport, support, protection, movement and coordination. This specialisation creates division of labourRead more
Different cells and tissues exist because living organisms perform various complex activities. Through differentiation, cells develop specialised structures suited for specific functions such as transport, support, protection, movement and coordination. This specialisation creates division of labour among tissues and organs. As a result, body functions become more organised, efficient and coordinated in multicellular plants and 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 lessWhat protects plants from mechanical injury, water loss, harmful microorganisms and extreme environmental conditions?
Plants are protected by the epidermis, the outermost protective tissue covering all plant parts. Its tightly packed cells and waxy cuticle prevent excessive water loss and protect against mechanical damage, microorganisms and environmental stress. Root hairs increase absorption of water and mineralsRead more
Plants are protected by the epidermis, the outermost protective tissue covering all plant parts. Its tightly packed cells and waxy cuticle prevent excessive water loss and protect against mechanical damage, microorganisms and environmental stress. Root hairs increase absorption of water and minerals, while stomata help in gaseous exchange and transpiration, supporting proper functioning and survival of plants.
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 lessWhat keeps a plant upright? Why does a fresh twig bend but a dry twig break? Why are seed coats hard and how do aquatic plants float?
Plants remain upright due to supporting tissues like parenchyma, collenchyma and sclerenchyma. Fresh twigs bend because flexible collenchyma supports them, while dry twigs break because they lose flexibility. Sclerenchyma makes seed coats hard and strong due to lignin deposition. In aquatic plants,Read more
Plants remain upright due to supporting tissues like parenchyma, collenchyma and sclerenchyma. Fresh twigs bend because flexible collenchyma supports them, while dry twigs break because they lose flexibility. Sclerenchyma makes seed coats hard and strong due to lignin deposition. In aquatic plants, specialised parenchyma contains air spaces that reduce weight and help plants float on water.
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 lessYou may have noticed that fibres of coconut husk are hard and brittle, whereas the leaf stalks of coriander are soft and flexible. Find out the reason.
Coconut husk fibres are hard and brittle because they mainly contain sclerenchyma tissue with thick lignified cell walls that provide strength and rigidity. In contrast, coriander leaf stalks contain collenchyma tissue with pectin-rich uneven walls. This tissue gives flexibility and support, allowinRead more
Coconut husk fibres are hard and brittle because they mainly contain sclerenchyma tissue with thick lignified cell walls that provide strength and rigidity. In contrast, coriander leaf stalks contain collenchyma tissue with pectin-rich uneven walls. This tissue gives flexibility and support, allowing the stalks to bend easily without breaking during movement or external pressure.
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 does water reach the leaves of tall trees?
Water reaches the leaves of tall trees through xylem tissue. Xylem vessels and tracheids form long tubular pathways that transport water and minerals from roots upward. Transpiration from leaf stomata creates a pulling force called transpiration pull, which helps move water against gravity. This cooRead more
Water reaches the leaves of tall trees through xylem tissue. Xylem vessels and tracheids form long tubular pathways that transport water and minerals from roots upward. Transpiration from leaf stomata creates a pulling force called transpiration pull, which helps move water against gravity. This coordinated process ensures continuous water supply to leaves for photosynthesis and other activities.
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 less