PLANT PHYSIOLOGY
PHOTOSYNTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Because scientists have complete disdain for students
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Trick question, it doesn’t
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Because it was discovered second, but actually occurs before Photosystem I
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Because the entire process was created in reverse order.
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Detailed explanation-1: -Photosystem I was discovered and named first, followed by photosystem II, which was discovered second. Another reason why photosystem II goes first is that photosystem I depend on the electron that is liberated by photosystem II.
Detailed explanation-2: -photosystem II. There are two types of photosystems in the light-dependent reactions, photosystem II (PSII) and photosystem I (PSI). PSII comes first in the path of electron flow, but it is named as second because it was discovered after PSI.
Detailed explanation-3: -Physically, photosystems are found in the thylakoid membranes. 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.
Detailed explanation-4: -Photosystem II is the first link in the chain of photosynthesis. It captures photons and uses the energy to extract electrons from water molecules. These electrons are used in several ways.
Detailed explanation-5: -Photosystem I, so named because it was discovered first, is also referred to as P700 because the special chlorophyll a pigment molecules that form it best absorb light of wavelength 700nm.