Transpiration

Assertion: Waxy and cutin coating on plant parts reduce the transpiration.

Reason    : These adaptation are found in xerophytes.

Assertion: Light is a very important factor in transpiration.

Reason: Light induces stomatal opening and darkness closing of stomata. Therefore, transpiration increases in light and decreases in dark.

Read the following statements and choose the correct option 

Statement A: Stomata are absent in submerged hydrophytes.

Statement B : Respiration occurs by means of air chambers in submerged plants.

How many among the following are correct regarding transpiration?

(a) Can cool leaf surface upto 10^o -15^oC.

(b) Creates pulling force for ascent of sap.

(c) Transports minerals from leaf to soil.

(d) Supplies water for photosynthesis.

Given below are two statements:

Statement I: The forces generated by transpiration can create pressures sufficient to lift a xylem sized column of water over 130 metres high.
Statement II: Transpiration cools leaf surfaces, sometimes 10 to 15 degrees, by evaporative cooling.

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

Stomata helps in

How much $\%$ of water is used for photosynthesis?

Guttation is seen in

Which of the following process in excess causes temporary wilting?

Select (in numbers) the correct function which is performed by transpiration from the following.

$\left(1\right)$ Creates transpiration pull for absorption and transport of water in plant.

$\left(2\right)$ Transport minerals from the soil to all parts of the plant.

$\left(3\right)$Cool and leaf surface (sometime $10-15°\mathrm{C}$).

$\left(4\right)$Supplies water for photosynthesis.

$\left(5\right)$Maintains shape and structure of plants by keeping cells turgid.

Guttation is caused due to

Water potential in the leaf tissue is positive$(+)$ during

Suppose an aquatic plant is placed in a test tube containing distilled water and the tube is stoppered. The tube is left outdoors for $24$ hours and the ${}_{\mathrm{p}}\mathrm{H}$ value of the water is then measured at regular intervals. Which of the following is the most probable result?

Identify the parts $\mathrm{A}$ to $\mathrm{E}$ in the given figure.

Transpiration driven ascent of sap depends mainly on the _____ physical properties of water.

Plant factor which affects transpiration are

The process of loss of water from the aerial parts of the plant is called …A… which is accomplished mainly by …B…

Which is not the common factor for transpiration?

What is the function of subsidiary cells in stomata?

Why the relationship between photosynthesis and transpiration is a compromise?