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Question
Name the following:
The process by which plants produce their food.
Solution
Photosynthesis
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RELATED QUESTIONS
The process of conversion of ADP into ATP during photosynthesis.
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) ______.
The diagram alongside represents an experiment conducted to prove the importance of a factor in photosynthesis.
Study the same and then answer the questions that follow:
(i) Name the factor being studied in his experiment.
(ii) Why was the plant kept in a dark room before conducting the experiment?
(iii}Why was the experimental leaf then kept in
1. boiling water 2. methylated spirit?
(iv) Name the solution used to test for the presence of starch in the leaf.
(v) What will we observe in the experimental leaf at the end of the starch test?
(vi) Give a balanced chemical equation to represent the process of photosynthesis.
Are the following statement true or false? Give a reason in support of your answer.
The rate of photosynthesis continues to rise as long as the intensity of light rises.
"Oxygen is a waste product of photosynthesis." Comment.
Give some adaptations in green leaf photosynthesis.
What is the importance of photosynthesis in the life of the following:
Green plants
Oxygen given out during photosynthesis comes from water. Explain this statement.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The dark reaction of Photosynthesis is light-independent.
Choose the Correct Answer:
NADP is expanded as
Planting trees help in decreasing global warming.
A plant is kept in a dark room for about 24 hours before conducting any experiment on photosynthesis in order to ______.
When iodine solution is added for testing starch, part of the leaf with ______ turns a blue-black color.
Give an example for micronutrients.
1. What happens to the dandelion flower
- During the daytime?
- At night?
2. What is the phenomenon known as?
Draw the structure of the stomata and label the parts.
Study the diagram given below and fill in the blanks with suitable words:
In order to prove that carbon dioxide is necessary for
(a) ______, a potted plant is placed in dark for 48 hours to (b) ______ the leaves. A part of a leaf is inserted into a conical flask containing potassium hydroxide solution. This is to absorb (c) ______ from the flask. The plant is then placed in sunlight for a few hours. The experimental leaf is tested for starch. The part of the leaf that was inside the conical flask turns (d) ______, whereas the part of the left outside turns (e) ______ in colour.
Assertion (A): All food chains begin with herbivores.
Reason (R): Green plants are heterotrophs.
