Advertisements
Advertisements
प्रश्न
A well-watered healthy potted plant with variegated leaves was kept in darkness for about 24 hours. It was then set up as shown in the diagram and exposed to light for about 12 hours. At the end of this time, leaf X and leaf Y were tested for starch. Study the diagram and answer the questions that follow:
(i) Why was the plant initially kept in darkness for 24 hours?
(ii) What is the function of the sodium hydroxide solution in the flask?
(iii) Select the correct leaf from the five available choices shown in the diagram as A, B, C, D, and E. Rewrite the correct answer for the filling in the appropriate letter from the questions that follow:
1. After the starch test, leaf X would look like.
2. After the starch test, leaf Y would look like.
Advertisements
उत्तर
(i) The plant was kept in the dark to destarch the leaves.
(ii) Sodium hydroxide absorbs CO2 thereby making the flask CO2 free.
(iii) (1) C, (2) E
APPEARS IN
संबंधित प्रश्न
Name the following:
The kind of plastids found in the mesophyll cells of the leaf.
Which tissues and cells are mainly concerned with photosynthesis?
Draw a neat and well-labeled diagram of the Chloroplast.
Give technical term:
Name the structure where photophosphorylation takes place.
Complete the following sentence with appropriate word:
Calvin cycle was proposed by __________.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Out of nine types of chlorophyll, chlorophyll ‘a’ and ‘b’ are most abundant.
Mention the significance of the following mineral:
Magnesium for green plants.
The basic functional unit of solar energy which is absorbed by the pigment chlorophyll is ______.
Define the following term:
Thylakoids
Define the following term:
Chloroplast
