Advertisements
Advertisements
प्रश्न
Are the following statement true or false? Give a reason in support of your answer.
Photosynthesis is considered as a process supporting all life on earth.
विकल्प
True
False
Advertisements
उत्तर
This statement is true.
Explanation:
Plants perform photosynthesis, so all creatures eventually rely on them for nourishment. While carnivores eat animals, herbivores, dependent directly on plants, rely on plants, which generate food through photosynthesis.
संबंधित प्रश्न
Answer the following:
Mention two significant advantages of photosynthesis to the living world as a whole.
Fill in the blank:
Photosynthesis produces oxygen and ______.
Fill in the blank:
Xanthophyll is ______ coloured pigment.
How does carbon dioxide return to the atmosphere? Explain.
A student in order to study the importance of certain factors of photosynthesis took a potted plant and kept it in the dark for over 24 hours. Then in the early hours of the morning the student covered one of the leaves with black paper in the centre only. Student placed the potted plant in the sunlight for a few hours, and then tested the leaf which was covered with black paper for starch.
(i) What aspect of photosynthesis was being investigated?
(ii) Is there any control in this experiment? If so, state the name.
(iii) Why was the plant kept in the dark before the experiment?
(iv) Describe step by step how the candidate proceeded to test the leaf for the presence of starch.
Mention one difference between the following on the basis of what is given in bracket.
Respiration and photosynthesis (gas released)
A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
Is there any control in this experiment? If so, state it.
A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
Why was the plant kept in the dark before the experiment?
Photosynthesis in green plants is directly and indirectly dependent on so many plant structures.
Explain briefly the role of the following structures in this process is Phloem tissue in the leaf veins.
Explain the Term Free Energy.
Choose the correct option.
A cell that lacks chloroplast does not ______.
