Advertisements
Advertisements
Question
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 Stomata.
Solution
Stoma: The main function of stoma is to let in carbon dioxide from the atmosphere for photosynthesis. Also most of the oxygen produced during photosynthesis diffuses out into the atmosphere through the stomata.
APPEARS IN
RELATED QUESTIONS
Cochlea, Malleus, Pinna, Stapes, Incus.
Formalin, Iodine, DDT, Lime
Give biological reasons for the following statements : In some xerophytes leaves are modified into spines
The diagram given below represents an experiment to prove the importance of a factor in photosynthesis. Answer the questions that follow :
Give a balanced chemical equation to represent the process of photosynthesis.
State the main functions of the following:
Medulla Oblongata
State the main functions of the following:
Cytokinins
Choose the correct answer:
The process of photosynthesis occurs by _________
Which one chemical reaction occurs during photosynthesis?
Name the following:
The category of organisms that prepare their own food from basic raw materials.
"Oxygen is a waste product of photosynthesis." Comment.
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?
Complete the following food chain by writing the names of appropriate organisms in the blanks:
→ __________ → __________ → Hen → Man
Explain the Term Calvin Cycle.
Give technical term:
The part of the chloroplast where the dark reaction of photosynthesis takes place.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Land plants obtain their CO2 from the atmosphere.
Choose the correct option.
Energy is transferred from the light reaction step to the dark reaction step by ______.
Choose the correct option.
For fixation of 6 molecules of CO2 and formation of one molecule of glucose in Calvin cycle, requires
Name the plant part
- Which bends in the direction of gravity but away from the light.
- Which bends towards light but away from the force of gravity.
Plants utilize only ______% of the absorbed water for photosynthesis and the other activities.
Define photosynthesis.