DENDROLOGY

TREE PHYSIOLOGY

PHOTOSYNTHESIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why does Photosystem II go first
A
Because scientists have complete disdain for students
B
Trick question, it doesn’t
C
Because it was discovered second, but actually occurs before Photosystem I
D
Because the entire process was created in reverse order.
Explanation: 

Detailed explanation-1: -In light reactions of photosynthesis, photosystem II occurs before photosystem I because the process of photosystem II is the very first process in the chain to perform photosynthesis.

Detailed explanation-2: -3.3. There are two kinds of photosystems: photosystem I (PSI) and photosystem II (PSII) (Fig. 3.3). PSII acts first during the light transformation process in photosynthesis, but it was named PSII because it was discovered second. Figure 3.3.

Detailed explanation-3: -Photosystem I occurs before photosystem II during the light reactions. a collection of pigments that trap solar energy and focus it on reaction centers, releasing high-energy electrons.

Detailed explanation-4: -Abstract. Photosystem II (PSII) is a membrane protein supercomplex that executes the initial reaction of photosynthesis in higher plants, algae, and cyanobacteria. It captures the light from the sun to catalyze a transmembrane charge separation.

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