Answer:
The correct answer is-
1. Photosynthesis- Carbon dioxide is a reactant, Oxygen is a product, Carried out in plants, Produces usable energy source.
2. Respiration- Carbon dioxide is a product, Oxygen is reactant, Carried out in animals, Produces usable energy source.
Explanation:
Photosynthesis is a complex process which takes place in the green plants which synthesize the energy molecule called glucose. The reaction takes place in the presence of sunlight combining the carbon dioxide and water forming the glucose and oxygen gas.
Respiration is a complex process which involves the breakdown of the glucose molecule in the presence of oxygen and forming the energy molecule called ATP which is utilized in the metabolic reactions. The complex process releases carbon dioxide.
The atmosphere of Earth contains primarily nitrogen, 78.09% of nitrogen, 20.95% oxygen, 0.93% argon, 0.039% carbon dioxide, and small amounts of other gases.
Transpiration is the rate of the water vapour exhalation by the plant cells through its opening pores. The correct blanks are guard cells and closing.
<h3>What is the structure of plant cells regulating transpiration?</h3>
Plant cells have certain specialized cell organelles that help in maintaining the rate of the carbon dioxide and the water content in their cells.
Stomata of the plant cells are specialized organelles that maintain the water and rate of transpiration by the plants. They have guard cells surrounding them that regulates their opening and closing.
The guard cells of the stomata form pores of the stomatal opening. The opening and the closing of the pores are regulated by the bulge and the carbon and the water intake and outtake of the cell is maintained.
Therefore, option A. <u>guard cells</u> and <u>closing </u>are the correct blanks.
Learn more about stomata and guard cells here:
brainly.com/question/939389
The most predominant use of oil is transportation. Have a nice day and good luck!
