Biology

Chapter 5 Part !

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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.

Cartes-fiches

Utilisateurs

Langue

Anglais

Catégorie

Biologie

Niveau

Université

Créé / Mis à jour

16.10.2014 / 16.10.2014

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photosystem 2 range

P680-680nm

photosystems are connected by

electron transport chain

which photosystem produces ATP

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

the photosystems are part of an ETC that does what

converts light energy into ATP and NADPH

which photosystem produces ATP

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

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

CO2 + H2O + sunlight = O2 + Glucose

algae and coral have what kind of relationship

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

symbiotic

what powers photosynthesis

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

sunlight

sun is like ________ which activates _______

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

enzyme - formula

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

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

photosynthesis

all life ultimately depends on what?

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

photosynthesis

what captures the sun's energy in photosynthesis

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

specialized pigments

organic compounds that absorb light

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

pigments

what gives pigments their color

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

reflected light

enzymes use the energy to build ____ from ______

Commandes clavier:

= tourner,

= avant/arrière,

= faire défiler

glucose

carbon dioxide

plant uses ____ in the process releasing _____ gas

water

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 =

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Cartes-fiches

equation for photosynthesis

CO2 + H2O + sunlight = O2 + Glucose

algae and coral have what kind of relationship

symbiotic

what powers photosynthesis

sunlight

sun is like ________ which activates _______

enzyme - formula

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

photosynthesis

all life ultimately depends on what?

photosynthesis

what captures the sun's energy in photosynthesis

specialized pigments

organic compounds that absorb light

pigments

what gives pigments their color

reflected light

enzymes use the energy to build ____ from ______

glucose

carbon dioxide

plant uses ____ in the process releasing _____ gas

water

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 =

evolution favored the development of photosyntheses bc photosynthetic organisms:

make their own food

short wavelength=

high energy

long wavelength=

low energy

the sun releases enegy in

waves

shorter wavelengths have ______ energy than longer wavelengths

higher

do all wavelengths reach earth?

we perceive the visible wavelengths as what

colors

what captures visible light

plant pigments

what specializes in absorbing different wavelengths

different pigments

what is sunlight that reaches earth's surgace

what are photons made up of

atoms

photons are packets of

kinetic energy

chemically, lights are

photons

no pigment absorbs ______ light

green

only _____ light is useful for photosynthesis

absorbed

why are leaves green

plant pigments absorb almost every wavelength except for green

gas exchange occurs where

stomata

stomata is what

leaf pores

difference between stomata and stoma

stomata is plural for stoma

what is the sight of photosynthesis?

chloroplasts

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