12. Three similar sized individuals of a small aquatic plant were collected and placed into each of three petri dishes, X, Y & z, containing different culture solutions.After six weeks the plant in dish X had the same number of leaves as it had previously and they were all small and yellowish. The plant in dish Y had more leaves and they were normal size and much darker green. The plant in dish Z also had more leaves, of normal size but very pale. Which one of the following showswhich elements were missing from the culture solutions?

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

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

Open in App

Solution

The correct option is A a
Mg, P, N will be used in the culture.

Suggest Corrections

Similar questions

Q. A small aquatic plant was put in each of the petridishes -x, y & z, containing different culture solution. After six weeks the plant in dish x had the same number of leaves as it had previously & were all small and yellowish.Plant in dish Y had more leaves of normal size and dark green color .Plants in dish Z had more leaves of normal size but very pale. Which of the following show the elements missing in the culture

One morning as Paheli strolled in her garden, she noticed many small plants, which were not there a week ago. She wondered, where they had come from as nobody had planted them there. Explain the reason for the growth of these plants.

Q. Euglena gracilis is a protist that has animal and plant-like characteristics. Because of its eyespot, Euglena exhibits phototaxis.
In an experiment, a culture of Euglena is placed in a petri dish and a piece of cardboard with a circle cut out of its center is placed over the petri dish, allowing light to enter only the center of the petri dish. After 30 minutes, the cardboard is removed and the culture is observed.
Which of these best describes the appearance of the Euglena culture after the 30 minutes?

Q. Ashok had a garden in his house and he took real good care of the plants in his garden. It so happened that he couldn't really look after his plants for a few days because of incessant rains in his place. When he finally went to check up on his plants, he noticed that instead of growing up, they had drooped and the leaves had turned pale green. He also observed that the lustrous white marble pillars of his house had lost its shine and turned yellowish. He collected the water sample when it rained again and found that blue litmus paper turned red upon exposing it to the collected water.
What could be the possible reasons for his observations?

Two healthy green plants were placed in the dark for 24 hours. They were then set up as shown in the figure and were left for 4 hours. Then a leaf was taken from each plant and the chlorophyll was removed from the leaves.

What hypothesis is being tested in this experiment?

Join BYJU'S Learning Program

The correct option is A aMg, P, N will be used in the culture.

The correct option is A a
Mg, P, N will be used in the culture.