It absorbs oxygen while at the same time releases carbon dioxide across its surface  
        
             
        
        
        
 carbon, hydrogen<span>, </span>oxygen<span>, </span><span>nitrogen</span>
        
                    
             
        
        
        
A. light energy, above the arrow
<span>Photosynthesis is a process wherein light energy is converted into chemical energy. </span>
Components of photosynthesis:
Water
Carbon Dioxide
Light energy, mostly from sunlight, is the main requirement for photosynthesis to occur. 
        
             
        
        
        
Answer:
The correct answer is option d. "secondary active transport by an antiporter".
Explanation:
The cotransport of calcium and sodium at which one calcium ion moves out of the cell and three sodium ions move into the cell is known as secondary active transport by an antiporter. It is secondary because it uses a form of energy different from ATP, is an active transport because the calcium ion moves against its gradient, and its done by an antiporter which is an integral membrane protein that function as a cotransporter.
 
        
                    
             
        
        
        
The energy being described her is <u>potential energy.</u>