Biology

Chapter 5 Part !

Chapter 5 Part !

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S. M.

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About these flashcards

This flashcard set delves into the intricate processes of photosynthesis at a university level, focusing on the roles of photosystems, electron transport chains, and the conversion of light energy into chemical energy. It explores the structure and function of pigments, proteins, and molecules within the thylakoid membrane, as well as the production of ATP and NADPH. The flashcards are particularly useful for students studying plant biology, biochemistry, or related fields, providing a comprehensive understanding of how light reactions and the Calvin cycle drive photosynthesis, ultimately supporting life on Earth.

Flashcards

89

Students

0

Language

English

Category

Biology

Level

University

Created / Updated

16.10.2014 / 16.10.2014

photosystem 2 range

P680-680nm

photosystems are connected by

electron transport chain

which photosystem produces ATP

2

as electrons pass along ETC, the energy they lose drives...

transport of protons from the stroma into the thylakoid space

photosystem II process

pigment absorbs light energy

transferred to reaction center

excites pair of electrons

ejected and grabbed by first protein in ETC linking photosystems

lost electrons replaced by splitting water

O2 is a waste product

when electrons are passd along ETC, the _____________________

proton conentration increases

enzyme that uses gradient to produce ATP

ATP synthase

ATP synthase is like what

a dam generating electricity

what begins photosynthesis

light reactions

light reactions produce what

ATP and NADPH

what is a byproduct of photosynthesis

O2

the photosystems are part of an ETC that does what

converts light energy into ATP and NADPH

which photosystem produces ATP

2

in photosystem 2, light energy is transferred where

reaction center

when photosystem II produces ATP, what happens

light energy transferred to reaction center and two electrons are ejected

in photosystem II, what happens after the two electrons are ejected

water is split to replace the electrons

in photosystem II, after the water is split what happens

O2 is a byproduct and the ejected electrons move down the ETC

in photosystem II, after the electrons move down the transport chain what happens

H+ is pumped into thylakoid

in photosystem II, after H+ is pumped into thylakoid what happens

H+ leaves through ATP synthase

in photosystem II, after H+ leaves through ATP synthase, what happens

ATP is produced

equation for photosynthesis

Keyboard commands:

= turn,

= for-/backward,

= scroll

CO2 + H2O + sunlight = O2 + Glucose

algae and coral have what kind of relationship

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= for-/backward,

= scroll

symbiotic

what powers photosynthesis

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= turn,

= for-/backward,

= scroll

sunlight

sun is like ________ which activates _______

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= turn,

= for-/backward,

= scroll

enzyme - formula

the process by which plants, algae and some microorganisms harness solar energy and convert it to chemical energy

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= turn,

= for-/backward,

= scroll

photosynthesis

all life ultimately depends on what?

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= turn,

= for-/backward,

= scroll

photosynthesis

what captures the sun's energy in photosynthesis

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= turn,

= for-/backward,

= scroll

specialized pigments

organic compounds that absorb light

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= turn,

= for-/backward,

= scroll

pigments

what gives pigments their color

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= turn,

= for-/backward,

= scroll

reflected light

enzymes use the energy to build ____ from ______

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= turn,

= for-/backward,

= scroll

glucose

carbon dioxide

plant uses ____ in the process releasing _____ gas

water

O2

electrons moved from H2O to CO2

transfer of electrons

redox

energonic/reduction

uses energy/gains electrons

exergonic/oxidation

releases energy/loses electrons

what does redox stand for

oxidation

reduction

reaction

first organisms were all what

heterotrophs

rise of photosynthesis radically altered earth how?

decreased CO2

lowered global temp

added O2 to atmosphere

protective ozone layer

what is the ozone layer

a layer of O2

ozone =

O3

ozone =

O3

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Flashcards

the photosystems are part of an ETC that does what

converts light energy into ATP and NADPH

which photosystem produces ATP

2

in photosystem 2, light energy is transferred where

reaction center

when photosystem II produces ATP, what happens

light energy transferred to reaction center and two electrons are ejected

in photosystem II, what happens after the two electrons are ejected

water is split to replace the electrons

in photosystem II, after the water is split what happens

O2 is a byproduct and the ejected electrons move down the ETC

in photosystem II, after the electrons move down the transport chain what happens

H+ is pumped into thylakoid

in photosystem II, after H+ is pumped into thylakoid what happens

H+ leaves through ATP synthase

in photosystem II, after H+ leaves through ATP synthase, what happens

ATP is produced

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