Commonly in other plants than tall ones the speed of upward movement of water is____________?

Related Mcqs:

1. A sponge of Antarctica which is more than a meter tall is____________?

   A. Scolymastra joubini
   B. Euplectella
   C. Spongilla
   D. Leucoselenia

2. The movement of water molecules from a region of higher water potential to a region of lower water potential (through membrane)

   A. Deffusion
   B. Osmosis
   C. Active transport
   D. None of these

3. Breakdown of large molecules into smaller ones utilizing water molecules is_________?

   A. Hydration
   B. Hydrolysis
   C. Dehydration synthesis
   D. Electrolysis

4. Pulling upward of water and dissolved minerals towards the leaves through the xylem tissue is called__________?

   A. Transpiration pull
   B. Root pressure
   C. Ascent of sap.
   D. All of these

5. Maximum speed of nerve impulse transmission is____________?

   A. 100 m/sec
   B. 110 m/sec
   C. 120m/sec
   D. 130 m/sec.

6. Abscisic acid promotes flowering in short day plants and inhibits in long day plants, which of the following is antagonistic to abscisic acid in terms of flowering______________?

   A. Gibberellins
   B. Cytokinins
   C. Auxins
   D. Ethene.

7. Epiphytes are plants which depend on other plants for________?

   A. food
   B. mechanical support
   C. shade
   D. None of these

   Submitted by: Tauqeer Ahmad Rajput

8. The uptake of water in plants involves__________?

   A. Active transport
   B. Passive transport
   C. Both of these
   D. None of these

9. In plants, water potential is determined by major factors?

   A. Three
   B. Four
   C. Two
   D. Five

10. Aquatic animals excrete nitrogenous waste commonly in the form of_____________?

    A. Ammonia
    B. Urea
    C. Uric acid
    D. Trimethylamine oxide