Advertisements
Advertisements
प्रश्न
Give technical term:
Which process is the ultimate source of energy for all living organisms?
Advertisements
उत्तर
Photosynthesis
APPEARS IN
संबंधित प्रश्न
Given below is an experiment setup to demonstrate a particualr tropic movement in germinating seeds. Study the diagram and answer the questions that follow : 
What is Thigmotropism? Give one example.
Mention two ways in which photosynthesis is useful to life.
Complete the following by filling in the blanks numbered 1 to 10 with the appropriate word/term:
Photosynthesis involves light reaction and dark reaction. During light reaction, the chlorophyll present in the (1) ______ gets activated by absorbing light energy. This energy splits (2) ______ molecules to (3) ______ and oxygen and releases two electrons. This process is called (4) ______. The (5) ______ ions are picked up by NADP to form (6) ______. The ADP is converted to (7) ______. This process is called (8) ______. During the dark phase, the compound produced at the end of the light reaction reacts with carbon dioxide to form (9) ______. This product is converted to starch. The process is called (10) ______.
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.
Describe step by step, how the candidate proceeded to test the leaf for the presence of starch?
Explain the term NADP.
Choose the Correct Answer:
Which would do maximum harm to a tree?
To which directional stimuli do
- roots respond
- shoots respond?
Higher Order Thinking Skill.
Imagine that student A studied the importance of certain factors in photosynthesis. He took a potted plant and kept it in dark for 24 hours. In the early hours of the next morning, he covered one of the leaves with dark 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.
- What aspect of photosynthesis was being investigated?
- Why was the plant kept in the dark before the experiment?
- How will you prove that starch is present in the leaves?
- Name the raw materials needed for photosynthesis.
Arrange and rewrite the terms in the group in the correct order to be in a logical sequence beginning with the term that is underlined:
Snake, Rabbit, Cabbage, Hawk.
