Question

2. Function of companion cells is (1) providing energy to sieve elements for active transport. (2) providing water to phloem. (3) loading of sucrose into sieve elements by passive transport. (4) loading of sucrose into sieve elements. 3. The cork cambium, cork and secondary cortex are collectively called (1) phelloderm (2) phellogen (3) periderm (4) phellem 4. Which of the following does not have stomata ? (1) Hydrophytes (2) Mesophytes (3) Xerophytes (4) Submerged hydrophytes 5. The chief water conducting elements of xylem in gymnosperms are : (1) vessels (2) fibres (3) transfusion tissue (4) tracheids 6. Which is correct about transport or conduction of substances? (1) Organic food moves up through phloem. (2) Organic food moves up through phloem (3) Inorganic food moves upwardly and downwardly through xylem (4) Organic food moves upwardly and downwardly through phloem 7. A narrow layer of thin walled cells found between phloem bark and wood of a dicot is (1) cork cambium (2) vascular cambium (3) endodermis (4) pericycle 8. Which of the following statements is true? (1) Vessels are multicellular with narrow lumen. (2) Tracheids are multicellular with narrow lumen. (3) Vessels are unicellular with wide lumen. (4) Tracheids are unicellular with wide lumen. 9. The quiescent centre in root meristem serves as a (1) site for storage of food which is utilized during maturation. (2) reservoir of growth hormones. (3) reserve for replenishment of damaged cells of the meristem. (4) region for absorption of water. 10. Root hair arises from ​

Answer 1

Answer:

okkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

Answer 2

Answer:

vammooooooooooooooooooooooooo