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प्रश्न
Gas exchange takes place in plants using _____.
विकल्प
Stomata
Chlorophyll
Leaves
Flowers
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उत्तर
Gas exchange takes place in plants using stomata.
APPEARS IN
संबंधित प्रश्न
Formalin, Iodine, DDT, Lime
The figure given below represents an experimental setup with a weighing machine to demonstrate a particular process in plants. The experimental setup was placed in bright sunlight. Study the diagram and answer the following questions:
(i) Name the process intended for study.
(ii) Define the above mentioned process.
(iii) When the weight of the test tube (A & B) is taken before and after the experiment, what is observed? Give reasons to justify your observation in A & B.
(iv) What is the purpose of keeping the test tube B in the experimental setup?
A potted plant was taken in order to prove a factor necessary for photosynthesis. The potted plant was kept in the dark for 24 hours. One of the leaves was covered with black paper in the centre. The potted plant was then placed in sunlight for a few hours.
(i) What aspect of photosynthesis was being tested?
(ii) Why was the plant placed in the dark before beginning the experiment?
(iii) During the starch test, why was the leaf
(1) boiled in water
(2) boiled in methylated spirit
(iv) Write a balanced chemical equation to represent the process of photosynthesis.
(v) Draw a neat diagram of a chloroplast and label its parts.
Expand the following biological abbreviations: ATP
Complete the following paragraph by filling in the blank (1) to (5) with appropriate words:
To test a leaf for starch, the leaf is boiled in water to (1) _________. It is then boiled in Methylated spirit to (2) ________. The leaf is dipped in warm water to soften it. It is placed in a petri dish, and (3) _____ solution is added. The region of the leaf which contains starch, turns (4) ________and the region while does not contain starch, turns (5) __________.
Mention the exact location of the following :
Thylakoids
Name the following:
The immediate product of photosynthesis.
What will happen if we remove the fish from the aquarium and keep it (with green plants) in a dark place?
The end product of photosynthesis is ______.
When iodine solution is added for testing starch, part of the leaf with ______ turns a blue-black color.
