Question

14. Which of the following is true about photosynthesis and cellular respiration?
A. Photosynthesis is just a reverse equation of cellular respiration.
B. Autotrophs and heterotrophs do not need each other to be able to survive.
C. Photosynthesis needs glucose and oxygen to produce carbon dioxide, water and
energy.
D. Cellular respiration needs carbon dioxide, water and energy to produce glucose and
oxygen.​

Answer 1

A. Photosynthesis is just a reverse equation of cellular respiration.

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Answer 2

A. Photosynthesis is just a reverse equation of cellular respiration.

Explanation:

• Cellular respiration and photosynthesis are biological processes in which matter and  energy flow through the biosphere.

• These two processes are responsible for the  exchange of oxygen and carbon dioxide between living organisms and the environment.  

• Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is  used as food by the plant and oxygen is a by-product.

• Cellular respiration converts  oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are byproducts and ATP is energy that is transformed from the process.

Equation for photosynthesis

$6CO_{2} +6H_{2} O$ → $C_{6} H_{12} O_{6} +6O_{2}$

Equation for cellular respiration

$C_{6} H_{12} O_{6} +6O_{2}$ → $6CO_{2} +6H_{2} O$