Peel should not be allowed to dry while observing under microscope beacuse

It causes more stomata to open

No worries! We‘ve got your back. Try BYJU‘S free classes today!

It causes closure of stomata

No worries! We‘ve got your back. Try BYJU‘S free classes today!

It results in increase in total number of stomata

No worries! We‘ve got your back. Try BYJU‘S free classes today!

None of these

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D None of these
The observation of the onion peel is to see the arrangement of the cells that are separated by the thin layer. In onion, the peel is taken out from the scaly leaves that do not perform photosynthesis. They perform the function of storage. So, they do not show the stomata or the chloroplast. After the removal, the peel is kept in water to avoid drying of the leaves.
Hence, the correct answer is 'None of the above'

Suggest Corrections

Similar questions

Q. Stomatal movements are influenced by a number of environmental factors. Which of the following statements is/are incorrect regarding this?
(i) Blue light keeps stomata open during the day promoting the movement of

K^{+}

ions into guard cells.
(ii) Increased

C O_{2}

concentration reduces the pH of guard cells which promotes conversion of sugar into starch, ultimately causing closure of stomata.
(iii) Abscisic acid, under stress conditions, causes rapid movement of

K^{+}

ions into guard cells.
(iv) Highly concentrated sucrose or salt solution when applied over to stomata, results in stomatal opening.

Q. When a student observed a stomatal epidermal peel under the microscope, it appeared pinkish red.
The stain used was :

" The rate of photosynthesis increases with increase in intensity of sunlight till 0.02 % CO2 level and further increases with increase in intensity of sunlight only if CO2 level rises to 0.05%, " As per the video lesson and our book . But increase in CO2 level above 0.02% causes stomatal closure, which should reduce the rate of exchange of gases causing decrease in the rate of photosynthesis. Then why it's opposite happens?

Q. Which plant hormone promotes seed, bud dormancy and causes stomatal closure ?

Q. Closure of stomata is caused by

Join BYJU'S Learning Program