The answers assume that debarking mainly damaged bark and phloem tissues while xylem remained mostly unaffected. Under this assumption, food transport is disturbed more than water transport. If assumptions change and deeper tissues like xylem are also damaged, water transport and support would failRead more
The answers assume that debarking mainly damaged bark and phloem tissues while xylem remained mostly unaffected. Under this assumption, food transport is disturbed more than water transport. If assumptions change and deeper tissues like xylem are also damaged, water transport and support would fail too. Partial debarking may cause only limited effects, allowing the tree to survive longer.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
Vibha’s statement is incorrect because meristematic tissues are not limited only to root and shoot apices. Plants also have lateral meristem for increasing girth and intercalary meristem for regrowth after cutting. Neha can ask Vibha how grasses regrow after mowing or how tree stems become thicker iRead more
Vibha’s statement is incorrect because meristematic tissues are not limited only to root and shoot apices. Plants also have lateral meristem for increasing girth and intercalary meristem for regrowth after cutting. Neha can ask Vibha how grasses regrow after mowing or how tree stems become thicker if meristematic tissues are present only at apical regions of plants.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
Simple tissues, such as parenchyma and collenchyma, consist of similar cells performing similar functions, so Rohan’s statement is correct for them. However, Rajiv is correct regarding complex tissues because they contain different kinds of cells working together for one common function. For exampleRead more
Simple tissues, such as parenchyma and collenchyma, consist of similar cells performing similar functions, so Rohan’s statement is correct for them. However, Rajiv is correct regarding complex tissues because they contain different kinds of cells working together for one common function. For example, xylem contains vessels, tracheids and fibres, while phloem contains sieve tubes and companion cells.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
(i) A plant cell generally has a larger central vacuole than an animal cell. The vacuole stores cell sap, maintains turgor pressure and supports rigidity in plants. Animal cells usually contain smaller vacuoles. (ii) This answer assumes that both cells are mature, healthy and functioning normally. IRead more
(i) A plant cell generally has a larger central vacuole than an animal cell. The vacuole stores cell sap, maintains turgor pressure and supports rigidity in plants. Animal cells usually contain smaller vacuoles.
(ii) This answer assumes that both cells are mature, healthy and functioning normally. It also assumes they belong to typical plant and animal tissues under ordinary environmental conditions.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
To examine the statement critically, I would ask whether some plant tissues perform more than one function. I would study examples like parenchyma, which stores food and carries out photosynthesis, epidermis, which protects and reduces water loss and xylem, which transports water and also provides mRead more
To examine the statement critically, I would ask whether some plant tissues perform more than one function. I would study examples like parenchyma, which stores food and carries out photosynthesis, epidermis, which protects and reduces water loss and xylem, which transports water and also provides mechanical support. These examples show that many tissues perform multiple functions simultaneously.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
What assumptions are you making to answer the questions above? How would the answer change if your assumptions are also changed?
The answers assume that debarking mainly damaged bark and phloem tissues while xylem remained mostly unaffected. Under this assumption, food transport is disturbed more than water transport. If assumptions change and deeper tissues like xylem are also damaged, water transport and support would failRead more
The answers assume that debarking mainly damaged bark and phloem tissues while xylem remained mostly unaffected. Under this assumption, food transport is disturbed more than water transport. If assumptions change and deeper tissues like xylem are also damaged, water transport and support would fail too. Partial debarking may cause only limited effects, allowing the tree to survive longer.
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 lessVibha claims to her friend Neha that, “Meristematic cells are located only at the root and shoot apices”. What do you think about this statement? What question can Neha ask Vibha to help her understand further if the statement is incorrect?
Vibha’s statement is incorrect because meristematic tissues are not limited only to root and shoot apices. Plants also have lateral meristem for increasing girth and intercalary meristem for regrowth after cutting. Neha can ask Vibha how grasses regrow after mowing or how tree stems become thicker iRead more
Vibha’s statement is incorrect because meristematic tissues are not limited only to root and shoot apices. Plants also have lateral meristem for increasing girth and intercalary meristem for regrowth after cutting. Neha can ask Vibha how grasses regrow after mowing or how tree stems become thicker if meristematic tissues are present only at apical regions 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 lessDuring the discussion in class, Rohan gives a statement that, “A tissue is a group of similar cells performing similar functions”. But Rajiv counter argues that, “this is true in case of simple tissues but little different in case of complex tissues”. Provide your explanation in view of the discussion in class.
Simple tissues, such as parenchyma and collenchyma, consist of similar cells performing similar functions, so Rohan’s statement is correct for them. However, Rajiv is correct regarding complex tissues because they contain different kinds of cells working together for one common function. For exampleRead more
Simple tissues, such as parenchyma and collenchyma, consist of similar cells performing similar functions, so Rohan’s statement is correct for them. However, Rajiv is correct regarding complex tissues because they contain different kinds of cells working together for one common function. For example, xylem contains vessels, tracheids and fibres, while phloem contains sieve tubes and companion cells.
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 lessA plant cell and an animal cell are of the same size. (i) Which cell will have a larger vacuole? Give reasons. (ii) What assumptions are you making to answer the question above?
(i) A plant cell generally has a larger central vacuole than an animal cell. The vacuole stores cell sap, maintains turgor pressure and supports rigidity in plants. Animal cells usually contain smaller vacuoles. (ii) This answer assumes that both cells are mature, healthy and functioning normally. IRead more
(i) A plant cell generally has a larger central vacuole than an animal cell. The vacuole stores cell sap, maintains turgor pressure and supports rigidity in plants. Animal cells usually contain smaller vacuoles.
(ii) This answer assumes that both cells are mature, healthy and functioning normally. It also assumes they belong to typical plant and animal tissues under ordinary environmental conditions.
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 lessA textbook states, “Each plant tissue performs only one specific function”. What questions would you ask to critically examine the correctness of this statement? What examples of tissues would you take to find out the answers to these questions?
To examine the statement critically, I would ask whether some plant tissues perform more than one function. I would study examples like parenchyma, which stores food and carries out photosynthesis, epidermis, which protects and reduces water loss and xylem, which transports water and also provides mRead more
To examine the statement critically, I would ask whether some plant tissues perform more than one function. I would study examples like parenchyma, which stores food and carries out photosynthesis, epidermis, which protects and reduces water loss and xylem, which transports water and also provides mechanical support. These examples show that many tissues perform multiple functions simultaneously.
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