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plant conducting system.pptx
- 1. The Conducting orTransporting tissue Ch. 1: Transport in Plants
- 2. Remember Answer the followingwith the appropriate response: • The process in which substances are absorbed or synthesized in one part of the plant are moved to other parts of the plants is called • Plants can prepare their own food by the process called
- 3. Remember Answer the followingwith the appropriate response: • Plants require and for the photosynthesis. • helps in transporting food to all parts of the plants including roots.
- 4. Which tissue is responsiblefor transporting food and water in plants?
- 5. Xylem and Phloem Xylemtransport water and minerals from roots to all parts of plants where as Phloem transport photosynthetic products from leaves to various parts of the plants.
- 6. Xylem tissues consistof how many types of cells?
- 7.
- 8.
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- 10.
- 11. How many typesof Phloem tissues present in plants? L.S of Phloem
- 12. Function of PhloemTissues
- 13. Difference between Xylemand Phloem Xylem Phloem It carries water and from root to leaves. It carries food material leaves to growing parts pf the plants. It composed of dead cells. It composed of living cells. It has a thick cell wall. It has a thin cell wall. Its cells are made up of Its cells are made up of cellulose. It gives mechanical to the plants. Phloem doesn't give mechanical strength.
- 14. Let’s Answer! (For Science) Q1.What is function of : (i) Tracheids (ii) Vessels (iii) Xylem Parenchyma (iv) Xylem fibre
- 15. Let’s Answer! Q2. Howcan we calculate the age of an old tree? Q3. Which type of cells help sieve tube in the conduction of food?
- 16. You Answer. Q1. Matchthe following columns A with columns B and select the correct answer. Column A Column B 1. Xylem Parenchyma A. Elongated dead cells with tapering 2. Vessels B. Living cells, thick walled. 3. Tracheids C. Tube-like structure with open ends. 4. Xylem Fibre D. Thick- walled, narrow cells with ends.
- 17. You Answer. Q2. Labelthe diagram.
- 18. You Answer. Q3. Trueor False. Conduction in Xylem require expenditure of energy.
- 19.
- 20. Assignment Q1. Does Xylemcarry water or Sugar? Q2. Why is Xylem dead and Phloem alive? Q3. If trunk have 30 Xylem ring then what will be the age of tee?
Editor's Notes
- #5 Say: Conducting tissue that is Xylem and Phloem.
- #6 Say: As you can see in a picture …. Blue coloured arrow indicating transport of water and minerals from roots to leaves where as Orange arrow indicating transport pf photosynthetic product from leaves to sink or growing part of plants.
- #7 Say: Xylem consist of four types of cells namely: Tracheids, Vessels, Xylem Parenchyma and Xylem Fibre.
- #8 Say: Tracheids are elongated cells with tapering ends. Their walls have thickening with lateral pores. They provide mechanical support as well as involved in conduction of water and minerals upwards.
- #9 Say: vessels are tube-like structures open at both ends . Just like tracheids , they provide mechanical support to the plant and conduct water upwards. They are placed one above the other.
- #10 Say: They are also called as wood. They have small , thick walled , living cells. They store food .
- #11 Say: They are also known as wood fibre. They have long narrow cells with tapering ends. They provide only mechanical support.
- #12 Say: Phloem consist of four types cells namely: sieve tube cells, companion cells, Phloem Parenchyma and Phloem fibre. Sieve tube are formed of cylindrical cells and they lack nucleus. Their end walls are perforated and are called sieve plate. Companion cells are attached to side walls of sieve tube and they are living, thin-walled cells. Phloem parenchyma is not shown in this picture but it is made up thin- walled living cells. Similarly Phloem fibre is madeup of sclerenchyma cells .
- #13 Say: The sieve tube play an important role in transporting food through sieve plate. For conduction of food through sieve plate ,companion cells help in it. Phloem parenchyma store food where as Phloem fibre give mechanical strength to the plant.
- #18 Answer- A- Vessels, B- Tracheids, C- Xylem fibre, D- Vessel member, E- Companion cells, F- Sieve plate, G- Sieve tube, H- Sieve element, I- Phloem fibre.
- #19 Answer- False.