Question

Value based question: Read the paragraph given below and answer the questions: Most of the plants on our planet Earth are vascular plants. These plants have a well-organised system for transporting materials to the different plant parts. As human body has organs, similarly vascular plants also have different organs. These organs are leaves, stems and roots. The leaves help the plant in the production of food through the process of photosynthesis with the help of solar energy. The roots provide anchorage to the plant in soil. These roots also absorb nutrients and water from the soil. The stem conducts water and supports the plant. Two kind of vascular tissues are found inside the plant body-xylem and phloem. Xylem carries water and nutrients. Water always flows in the upward direction. Phloem picks up the food and directs it upwards and downwards. Vascular tissue is mostly found in clusters with xylem and phloem packaged together. The process of water flow starts with the root pressure which draws the water inward. Water molecules cling to each other through cohesive forces and move. Transpiration is the process which ultimately keeps the water moving. As the water gets evaporated from the leaves, it pulls more water and the process continues. 11(i) The vascular system in plants is functionally similar to ____ in animals. *

excretory system

digestive system

circulatory system

respiratory system

11(ii) Water is conducted ____________. *

in upward direction only through xylem

in upward direction only through phloem

downward direction only through xylem

both upward and downward directions through xylem and phloem

11(iii) Water is conducted from roots to the various parts through *

transpiration pull

transpiration pull and cohesive forces

transpiration pull, root pressure and cohesive forces

root pressure and cohesive forces

11(iv) Which 'structure' in the plant helps water conduction through transpiration? *

cuticle

bark

stomata

epidermis​

Answer 1

Answer:

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Answer 2

Explanation:

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