Xylem vessels and tracheids are dead, hollow cells that form continuous tubes for water transport. Living cells in leaves lose water through transpiration from stomata, creating a suction force called transpiration pull. This pull draws water upward through xylem against gravity. Thus, dead xylem ceRead more
Xylem vessels and tracheids are dead, hollow cells that form continuous tubes for water transport. Living cells in leaves lose water through transpiration from stomata, creating a suction force called transpiration pull. This pull draws water upward through xylem against gravity. Thus, dead xylem cells and living leaf cells work together to maintain continuous water movement.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
There is a direct relationship between the diameter of a teak tree and the number of annual rings formed. As the tree grows older, more annual rings are added and the stem diameter increases gradually. These rings are produced by lateral meristematic activity. Therefore, counting annual rings helpsRead more
There is a direct relationship between the diameter of a teak tree and the number of annual rings formed. As the tree grows older, more annual rings are added and the stem diameter increases gradually. These rings are produced by lateral meristematic activity. Therefore, counting annual rings helps estimate both the age and growth pattern of the tree.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
If stomata were absent, plants would face serious problems in gaseous exchange and transpiration. Carbon dioxide could not enter properly for photosynthesis and oxygen release would decrease. Transpiration pull responsible for upward water movement would also reduce. Plants would overheat, transportRead more
If stomata were absent, plants would face serious problems in gaseous exchange and transpiration. Carbon dioxide could not enter properly for photosynthesis and oxygen release would decrease. Transpiration pull responsible for upward water movement would also reduce. Plants would overheat, transport less water and minerals and fail to perform important life processes efficiently for healthy growth.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
Nervous tissue helps us sense heat, cold, pain and touch. It contains specialised cells called neurons that receive signals from sensory receptors present in the skin. These neurons transmit messages to the brain and spinal cord for interpretation. The nervous system then coordinates suitable responRead more
Nervous tissue helps us sense heat, cold, pain and touch. It contains specialised cells called neurons that receive signals from sensory receptors present in the skin. These neurons transmit messages to the brain and spinal cord for interpretation. The nervous system then coordinates suitable responses, helping the body react quickly to environmental changes and maintain safety.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
The simple squamous epithelial tissue lining the alveoli of lungs allows oxygen to enter the blood. These cells are thin and flat, reducing the distance for diffusion. This structure enables rapid exchange of oxygen and carbon dioxide between the air inside lungs and blood flowing through nearby capRead more
The simple squamous epithelial tissue lining the alveoli of lungs allows oxygen to enter the blood. These cells are thin and flat, reducing the distance for diffusion. This structure enables rapid exchange of oxygen and carbon dioxide between the air inside lungs and blood flowing through nearby capillaries, supporting efficient respiration and energy production in the body.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
Once water is absorbed by plant roots, it has to travel against gravity through xylem. How do the ‘dead’ cells of the xylem work together with the living cells of leaves at the top to keep the water moving?
Xylem vessels and tracheids are dead, hollow cells that form continuous tubes for water transport. Living cells in leaves lose water through transpiration from stomata, creating a suction force called transpiration pull. This pull draws water upward through xylem against gravity. Thus, dead xylem ceRead more
Xylem vessels and tracheids are dead, hollow cells that form continuous tubes for water transport. Living cells in leaves lose water through transpiration from stomata, creating a suction force called transpiration pull. This pull draws water upward through xylem against gravity. Thus, dead xylem cells and living leaf cells work together to maintain continuous water movement.
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 is the relation between the diameter of the teak tree to the annual rings formed?
There is a direct relationship between the diameter of a teak tree and the number of annual rings formed. As the tree grows older, more annual rings are added and the stem diameter increases gradually. These rings are produced by lateral meristematic activity. Therefore, counting annual rings helpsRead more
There is a direct relationship between the diameter of a teak tree and the number of annual rings formed. As the tree grows older, more annual rings are added and the stem diameter increases gradually. These rings are produced by lateral meristematic activity. Therefore, counting annual rings helps estimate both the age and growth pattern of the tree.
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 do you think will happen if there were no stomata in the epidermis of the stem or leaves?
If stomata were absent, plants would face serious problems in gaseous exchange and transpiration. Carbon dioxide could not enter properly for photosynthesis and oxygen release would decrease. Transpiration pull responsible for upward water movement would also reduce. Plants would overheat, transportRead more
If stomata were absent, plants would face serious problems in gaseous exchange and transpiration. Carbon dioxide could not enter properly for photosynthesis and oxygen release would decrease. Transpiration pull responsible for upward water movement would also reduce. Plants would overheat, transport less water and minerals and fail to perform important life processes efficiently for healthy growth.
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 lessWhich tissue enables you to sense heat or cold?
Nervous tissue helps us sense heat, cold, pain and touch. It contains specialised cells called neurons that receive signals from sensory receptors present in the skin. These neurons transmit messages to the brain and spinal cord for interpretation. The nervous system then coordinates suitable responRead more
Nervous tissue helps us sense heat, cold, pain and touch. It contains specialised cells called neurons that receive signals from sensory receptors present in the skin. These neurons transmit messages to the brain and spinal cord for interpretation. The nervous system then coordinates suitable responses, helping the body react quickly to environmental changes and maintain safety.
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 lessWhich tissue allows oxygen to enter the blood?
The simple squamous epithelial tissue lining the alveoli of lungs allows oxygen to enter the blood. These cells are thin and flat, reducing the distance for diffusion. This structure enables rapid exchange of oxygen and carbon dioxide between the air inside lungs and blood flowing through nearby capRead more
The simple squamous epithelial tissue lining the alveoli of lungs allows oxygen to enter the blood. These cells are thin and flat, reducing the distance for diffusion. This structure enables rapid exchange of oxygen and carbon dioxide between the air inside lungs and blood flowing through nearby capillaries, supporting efficient respiration and energy production in the body.
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