Ch-11 Questions 61 to 80

Chapter-11

Transportation in Animals and Plants

Sr NO.	Question	Answer
61.	The way in which waste chemicals are removed from the body of the animal depends on the availability of _____.	Water.
62.	Aquatic animals like fishes, excrete cell waste as _______ which directly dissolves in water.	Ammonia .
63.	Some land animals like birds, lizards, snakes excrete a semi-solid, white coloured compound What chemical it contain?	Uric acid.
64.	The major excretory product in humans is ____.	Urea.
65.	In which condition of human body require dialysis.	Sometimes a personís kidneys may stop working due to infection or injury. As a result of kidney failure, waste products start accumulating in the blood. Such persons cannot survive unless their blood is filtered periodically through an artificial kidney. This process is called dialysis.
66.	Plants take water and mineral nutrients from the soil through the _____ and transport it to the ______.	Roots , Leaves.
67.	Which part of plant's body prepare Food? And how?	The leaves prepare food for the plant, using water and carbon dioxide during photosynthesis.
68.	_____ is the source of energy. ______must be made available to every cell of an organism.	Food.
69.	Every cell of an organism gets energy by the breakdown of ______.	Glucose.
70.	How water and nutrients absorbed by the root?	Plants absorb water and minerals by the roots. The roots have root hair. The root hair increase the surface area of the root for the absorption of water and mineral nutrients dissolved in water.
71.	How water moves from the root to the leaves?	Plants have pipe-like vessels to transport water and nutrients from the soil. The vessels are made of special cells, forming the vascular tissue. The vascular tissue for the transport of water and nutrients in the plant is called the xylem. The xylem forms a continuous network of channels that connects roots to the leaves through the stem and branches and thus transports water to the entire plant
72.	What kind of transport system is present in plants?	Plants have pipe-like vessels to transport water and nutrients from the soil. The vessels are made of special cells, forming the vascular tissue. The vascular tissue for the transport of water and nutrients in the plant is called the xylem.
73.	A _____ is a group of cells that perform specialised function in an organism.	Tissue.
74.	The vascular tissue for the transport of water and nutrients in the plant is called the ____.	Xylem.
75.	How food moves from the leaves to other parts of the plant? How is the food prepared by the leaves carried to the parts which cannot make food?	Food is transported to various parts of the plant by a vascular tissue called phloem.
76.	______ and _____transport substances in plants.	Xylem and phloem.
77.	Plants release a lot of water by the process of _________.	Transpiration.
78.	Plants absorb mineral nutrients and water from the ___.	Soil.
79.	A part of water absorbed by plants evaporates through the _____ present on the surface of the leaves by the process of transpiration.	Stomata.
80.	How transpiration process helps plants? Why plants absorb a large quantity of water from the soil, then give it off by transpiration?	The evaporation of water from leaves generates a suction pull which can pull water to great heights in the tall trees. Transpiration also cools the plant.

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