Biology Fsc Part 1 Chapter 8 Online Test With Answers

Biology Fsc Part 1 Chapter 8 Online Test

Sr. # Questions Answers Choice
1 Sieve tbe elements and companion cells are in communcaion with each other by  Vacuoles Plasmodesmata Stomata Gap junctions
2 Companino cells supply................to sieve tube elements. ATP and proteins proteins and lipids Sugar and water Supply noting
3 the cells ofpholoem thattransport sugars throughout the plant are. Companion cells Sieve tube cells Fibers Phloem parenchyma
4 Phloemtissue cimpromises of Companion cells Sieve elements Phloem fibres All of above
5 Which statement characterizes tension in TACT theory. Negative pressur ecreated by pulling force for continuous flow of water Altractive force between water and xylem walls Attractive force between water molecules Both a and c
6 Water molecules within xylem stick togetehr forming an unbroken column from roots to the leave sis due to. Cohesion  Adhesion  Tension  Transduction 
7 The forece which plays crucial role in maintaining continuity of water column during ascent of sap is Adhesion  Cohesion  Tension  Ionic bond
8 Which feature belongs to vessels of xylem. Elongate and thin cells Living cells with thin walls, hold nutrients Shorter, broader,perforation plates  All of above
9 Which cells does not comprise xylem tissue. Sieve elements Xylem fibres Tracheids Vessels
10 Casparian strips are hurdle in the way of Vaculor pathway Symplast pathway Apoplast pathway None of above
11 The pathway in which water and minerals mvoe via interconnected protoplasts of root cells, is called. Symplast Apoplast Vacuolar Reticular
12 The cytoplasmic that extend through pores in cdjacent cell walls of plants are. Plasmodesmata Stomata Lenticles All of the above
13 The pathway invovling a system of adjacent cell walls in plant roots for the transport of sap is called. Symplast Apoplast Vacuolar ETC
14 Which of the following cells are teh extensions of epidermal cells. Root haris Tap roots Lateral roots Advantitious roots
15 The steeper the potential gradient the flow of water will be Faster Slower Not affected Very slower
16 Osmotic potential is also called. Water potential Solute potential Pressure potential Action potential
17 Pure wate rhas maximum water potential which by definition is. 0 +1 +1200 kpa -600 kpa
Download This Set

Is this page helpful?