The phloem tissue in plants is responsible for the transport of:(a) water (b) water and minerals (c) sugar (d) all of the above
(c) sugar
Phloem tissue is a vascular tissue in plants, which helps in the transportation of the food prepared in the leaves to the other parts of the plant. Here, the food is sugar .
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DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 Plants have pipe-like vessels made up of special cells, forming the vascular tissues, for transport of water and nutrients from the soil. These vascular tissues are called xylem. The transportation of food is done by vascular tissue called phloem. Which of the following are involved in transport of substances in plants?(a) Xylem(b) Phloem(c) Both of these(d) None of these
The transport system in plants consists of two kinds of tissues X, Y. The tissue X is made up of living cells and consists of two components A and B. The component A has tiny pores in its end walls and contains only cytoplasm but no nucleus. On the other hand, component B has cytoplasm as well as nucleus. The tissue Y is made up of dead cells and consists of two components C and D. The component C has open ends whereas component D does not have open ends. In flowering plants, either only C or both C and D transport water but D is the only water conducting tissue in non-flowering plants.(a) What is (i) tissue X (ii) component A, and (iii) component B ?(b) What is (i) tissue Y (ii) component C, and (iii) component D ?
Which process in a plant is accomplished by utilising energy from ATP : transport of water and minerals or transport of food ?
Water and dissolved minerals get into the root hair of a plant by a process called A and enter the conducting tissue B. The process C helps the water and dissolved minerals to move up through the tissue B in roots and stem, and reach the leaves of a plant . In the leaves food is made by a process D. This food is then transported to all the parts of a plant through tissue E. The process of distributing food made in the leaves to all the parts of the plant is called F.(a)What are (i) A (ii) B (iii) C (iv) D (v) E, and (vi) F ?(b) Which tissue is made up of living cells : B or E ?(c) Which tissue, B or E, contains sieve tubes ?(d) Which tissue, B or E, contains tracheids ?
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