In terms of CO2 compensation point C3 has higher compensation point than C4. CO2 compensation (CP) point is the CO2 concentration where photosynthesis rate is 0. Meaning if plants have CP = 50 plant will start to suffer when CO2 CONCENTRATION is below or equal to 50 meaning they start to starve and die. On the other hand, C4 plant have less than 10 CP meaning they are still surviving even at very low CO2 CONCENTRATION. Also 13carbon isotope ratio of C3 and C4 is different C3 has lower range than C4. Usually -12 to -10 per mil. for C4 and C3 has lower -14 per mil.
C3 plants flourish in cool, wet, and cloudy climates, where light levels may be low, because the metabolic pathway is more energy efficient, and if water is plentiful, the stomata can stay open and let in more carbon dioxide. However, carbon losses through photorespiration are high.
C4 plants, inhabit hot, dry evironments and have very high water-use efficiency, so that there can be up to twice as much photosynthesis per gram of water as in C3 plants, but C4 metabolism is inefficient in shady or cool environments.
C3
c3
C3 and C4 plants are named after the number of carbon molecules in the first products of their carbon fixation cycles. C3 plants produce 3-phosphoglycerate and C4 plants produce Oxaloacetate.
Around 50ppm for C3 plants and around 5ppm for C4 plants.
c4 plants have first product of calvin cycle is oxaloacetic acid but in c3 plants is phospfoglyceric acid
Since C4 plants need for CO2 is more than C3 plants, doubling the concentration of CO2 will have more positive effect on C4 plants. If CO2 is a limiting factor for photosynthesis, both C3 & C4 plants will have positive effect.
The plants which live in water are aquatic plants.
yes more like c4 plants
In hot, arid conditions, C3 and C4 plants have to partially close their stomata to reduce water loss. However, this inhibits photosynthesis. Therefore, C3 and C4 plants are photosynthetically more efficient in more temperate environments.
c4
the question doesn't make sense
They are named after the number of carbons of the first product of their carbon fixation cycle (the cycle used to make plant sugars). C4 plants have a more elaborate carbon fixation cycle of C3 and reduces photorespiration. They are thought to have evolved more recently than C3 plants.