Answer;
Hot & Dry conditions
Explanation;
-C4 is the alternative pathway of Calvin cycle (C3 cycle) taking place during the dark phase (light-independent stage) of photosynthesis. In the C4 cycle the first stable compound is 4 carbon compound, namely oxaloacetic acid. Hence it is called C4 cycle. It is a process of carbon dioxide fixation.
-C3 plants have the disadvantage that in hot dry conditions their photosynthetic efficiency suffers because of a process called photorespiration. When the CO2 concentration in the chloroplasts drops below about 50 ppm, the catalyst rubisco that helps to fix carbon begins to fix oxygen instead.
-The problem of photorespiration is overcome in C4 plants by a two-stage strategy that keeps CO2 high and oxygen low in the chloroplast where the Calvin cycle operates.
Answer:
NaDP- Nicotinamide adenine dinucleotide phosphate
One of the main functions of the chloroplast is its role in photosynthesis<span>, the process by which light is transformed into chemical energy, to subsequently produce food in the form of </span>sugars<span>. </span>Water<span> (H</span>2<span>O) and </span>carbon dioxide<span> (CO</span>2<span>) are used in photosynthesis, and sugar and </span>oxygen<span> (O</span>2<span>) is made, using </span>light energy<span>.
so </span>it necessary to have six co2 entering the chloroplast to make <span>6 carbon glucose</span>
49 (just typing this because the answer wasnt long enough)