Hydrogen ion flow out of the thylakoid compartments ____

a. occurs between photosystems I and II
b. is called the hydrogen transfer system
c. provides energy to produce ATP molecules
d. causes excitation of chlorophyll molecules
e. requires the intermediary action of acceptor molecules


ANSWER: c

Biology & Microbiology

You might also like to view...

Answer the following statements true (T) or false (F)

1. Animal biomass exceeds plant biomass in most ecosystems. 2. Air pollutants can increase heritable mutations. 3. Insect densities tend to decrease in elevated CO2, all things being equal. 4. Biomagnification of chemicals such as DDT results in lower trophic levels becoming enriched in these chemicals.

Biology & Microbiology

Which addition to a DNA sequence would not cause a frameshift mutation?

A) T B) GC C) GCT D) GGCT

Biology & Microbiology

The collective human ecological footprint is now much larger than Earth's sustainable resource base

Indicate whether the statement is true or false

Biology & Microbiology

Which of the following cell types produce antibodies?

a) t- cells b) dendritic cells c) b- cells d) natural killer cells

Biology & Microbiology