Question

Glucose is a simple sugar, yet it is a large molecule compared to carbon dioxide or

water. How many molecules of carbon dioxide and water are needed to produce one

molecule of glucose?

a) 6 CO2 and 6 H2O

b) 1 CO2 and 6 H2O

c) 6 CO2 and 12 H2O

d) 1 CO2 and 1 H2O​

Answer 1

Answer:

option (c ) is the Correct answer , as the formula of glucose is ( C6H 12 o6)

Answer 2

a) 6CO2 and 6 H2O are needed to produce one molecule of glucose.

• Glucose is a carbohydrate utilized for the production of energy. The energy is produced in the form of ATP by aerobic and anaerobic oxidation of glucose.
• The formation of ATP molecules takes place in step-wise process, occurring in the cytoplasm and mitochondria.
• The formation of glucose from carbon dioxide and water takes place in plants. The process of the formation of glucose from carbon dioxide and water is called photosynthesis.
• The process of photosynthesis is the reason for the ability of plants to make their food. Hence, they are autotrophic.
• Humans and animals can not make their food and hence they are heterotrophic.
• The balanced chemical representing stating formation of glucose is - 6CO2 + 6H2O --> C6H12O6 + 6O2
• In the above reaction, CO2 represents carbon dioxide, H2O indicates water, C6H12O6 is the chemical formula of glucose and O2 represents oxygen gas.
• Carbon dioxide is available from the atmosphere and water is available either externally in the form of precipitation or from water table underground. Sunlight is the most important for the process of photosynthesis.

#spj2