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1. which description properly describes the plant structures involved in photosynthesis?
stomata take in water, sunlight, and carbon dioxide and release oxygen.
phloem transports water, stomata take in carbon dioxide, and chlorophyll absorbs sunlight.
xylem takes in water, sunlight, and carbon dioxide and releases oxygen.
stomata take in carbon dioxide and release oxygen.
2. during photosynthesis, water and carbon dioxide become glucose and oxygen.
true
false
3. what evidence supports a conservation law?
6 co2 → c6h12o6 + 6 o2
6 co2 + 6 h2o + light → c6h12o6 + 6 o2
6 h2o + light → c6h12o6 + 6 o2
6 co2 → 3 c6h12o6 + 3 o2

1. The best answer is Stomata takes in carbon dioxide and release oxygen. Photosynthesis is the process that take place in the leafs of green plants where chlorophyll absorbs sunlight and converts the energy from the sunlight to chemical energy. The process produces simple sugars and oxygen, oxygen is either released to the atmosphere or used in cellular respiration. Simple sugars (glucose) are stored as glycogen and used as an energy reserve. 

2. The statement is true. Water and carbon dioxide are are raw materials of photosynthesis. Water is broken down in the first stage of photosynthesis using sunlight to produce oxygen and hydrogen ions. The second stage of photosynthesis involves carbon dioxide fixation producing simple sugars 
(glucose).

3. The equation that supports the conservation of energy is;
 6CO2 + 6H2O + light = C6H12O6 + 6O2
This is the process of photosynthesis that involves use of carbon dioxide and water to produce glucose and oxygen. 
Six carbon atoms are used to generate another six carbons in glucose, hydrogen atoms and oxygen atoms taken in remain the same in the products.