Plant Physiology Quiz on Transport in Plants

Practice test on ‘Transport in Plants’.  Choose the best answer from the four options given. When you've finished answering as many of the questions as you can, scroll down to the bottom of the page and check your answers by clicking ' Score'. Percentage score will be displayed along with right answers.

1.Root pressure develops due to----
passive absorption
active absorption
increases in transpiration
low osmotic potential in soil

2.Xylem translocates
Water, mineral salts, some organic nitrogen and hormones
water only
water and mineral salts onlye
water, mineral salts and some organic nitrogen only

3.The water potential of pure water is ... :
less than zero
zero
more than one
more than zero but less than one

4.Which of the following is not a feature of active transport of solutes in plants?
occurs against concentration gradient
non-selective
requires ATP
occurs through membranes

5.What will be the direction of flow of water when a plant cell is placed in a hypotonic solution?

water will flow in both directions
water will flow out of the cell
water fill flow into the cell
No flow of water in any direction

6. Stomatal movement is not affected by----
light
temperture
oxygen concentration
carbon dioxide concentration

7. Which of the following is not observed during apopastic pathway----
movement of water occurs through intercellular spaces and wall of the cells
The movement is aided by cytoplasmic streaming
Apoplast is continous and does not provide any barrier to water movement
The movement does not involve crossing of cell membrane

8. Addition of more solutes in a given will
raise its water potential
lower its water potential
make its water potential zero
not affect the water potential at allD

9. Given below are two statements: Given below are two statements :

Statement I : The forces generated transpiration can lift a xylem-sized column of water over 130 meters height.

Statement II : Transpiration cools leaf surfaces sometimes 10 to 15 degrees evaporative cooling.

In the light of the above statements, choose the most appropriate answer from the options given below :

Both Statement I and Statement II are incorrect
Statement I is correct but Statement II is incorrect
Statement I is incorrect but Statement II is correct
Both Statement I and Statement II are correct

10. Match the following

Choose the correct answer from the options given below:

A-IV,B-III, C-II, D-I
A-III,B-I, C-IV, D-II
A-II,B-I, C-IV, D-III
A-II,B-IV, C-I, D-III
Score =
Correct answers: