Which of the following is NOT true about cyanobacteria?
A) Cyanobacteria have the same light-capturing chlorophylls as plants.
B) Chloroplasts evolved from ancient cyanobacteria.
C) Cyanobacteria can fix carbon.
D) Cyanobacteria can fix nitrogen.
E) Cyanobacteria put nearly all of the nitrogen into Earth's atmosphere.

Question

Quizplus · Accepted Answer

Cyanobacteria are known for their ability to fix nitrogen, which means they convert nitrogen gas from the atmosphere into a usable form for other organisms. However, it is not true that cyanobacteria put nearly all of the nitrogen into Earth's atmosphere. Nitrogen gas makes up about 78% of Earth's atmosphere and has been present for billions of years, while cyanobacteria have only been around for a fraction of that time. Cyanobacteria are responsible for contributing some nitrogen to the atmosphere, but they are not the sole source.

Which of the Following Is NOT True About Cyanobacteria