In a flaccid cell which condition does not occur-

Choose between the two options to answer the question specified in the brackets for the following.

An example is illustrated below.

Example: Corolla or Calyx (Which is the miter whorl?) Answer: Calyx

Lenticels or stomata (Which one remains open always?) 

The containers $\mathrm{X}$ and $\mathrm{Y}$ have $1$ litre of pure water and $1$ litre of $0.1 \mathrm{M}$ sugar solution, respectively. Which one of the following statements would be correct regarding their water potential $\left(\mathrm{\Psi }\right)$ and osmotic potential $\left(\mathrm{\Psi }s\right)?$

*Note: There were errors in original KVPY papers, and thus the options are modified here.

Answer the following:

Differentiate between Translocation and transpiration.

Given below is an apparatus that was set up to investigate a physiological process in plants. The setup was placed in bright sunlight. Answer the questions that follow:

(i) Name the process being studied. Define the process.

(ii) Why was the pot enclosed in a rubber sheet?

(iii) Mention two external factors which can accelerate the above process.

(iv) List two adaptations in plants to reduce the above process.

(v) Draw a neat, labelled diagram of a stomatal apparatus.

Assertion ($\mathrm{A}$): The flow of solvent molecules from a pure solvent to the solution through semipermeable membrane is osmosis.

Reason $\left(\mathrm{R}\right):$ Pure solvent molecules flow out of the solution through semipermeable membrane if a pressure larger than the osmotic pressure is applied to the solution side.

The correct answer is:

Choose the most appropriate statement from the options listed below that explains the factors which affects transpiration:

(A) If the wind blows faster, the water vapour released during transpiration is faster.

(B) Increase in atmospheric pressure increases the rate of transpiration.

(C) Decrease in temperature allows more water to evaporate.

(D) High humidity in the air increases the rate of transpiration.

 Differentiate between the following pairs on the basis of what is indicated in the brackets.

Hypotonic solution and Hypertonic solution [condition of a plant cell when placed in them].