C3 and C4 plants

[MrMistery]

tittu, that's one of the practice questions on the IBO website, if i remember correctly. A C4 plant can undergo photosynthesis at lower concentrations of CO2 than the C3 plant. Therefore, the CO2 will keep decreasing after the inferior limit of the C3 plant, until it reaches the C4 inferior limit. B

[angelyn1985]

Just a question, are maize and soybean both C4 plants??

[MrMistery]

maize yes. As for soybean, i don't know

[Cat]

Soybean is C3.

[Cristgonz]

simplyfied is that C4 (weeds) are more effective on the production of drymatter than C3 (plants except cactaceae and another ones) and C3 makes the normal photosynthesis cicle (krebs)-C4 do it easier.
you'll never see a C3 Plant growing up on the pavement but you can see some annual or perennial grasses everywhere (i have seen them on some celigins here in my country haha)

[Cristgonz]

Just a question, are maize and soybean both C4 plants??

corn = C4
soybean = C3
that's why corn need less water to make more dry matter.

[MrMistery]

[...] C3 makes the normal photosynthesis cicle (krebs)-C4 do it easier.[...]

Calvin-Bensen!

[Cristgonz]

[...] C3 makes the normal photosynthesis cicle (krebs)-C4 do it easier.[...]

Calvin-Bensen!

haha thanks
sorry!! i'm just a little bit oxidized ! i did it in my first year of my career hehe.
!!
but i guess u got my idea xD

[alextemplet]

Aren't C3 plants mostly monocots and C4 plants mostly eudicots?

[MrMistery]

No.