bases photosynthèse Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

autotrophes

A

prennent carbone de mol inorg

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

hétérotrophes

A

composés chimique org donne C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

sites de photosynthèse

A

mésophylle
stomates
nervures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

mésophylle

A

tissu interne des feuilles
++++ choloroplastes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

stomates

A

pores micro sur épiderme
échange O2 / CO2
évaporation H2O

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

nervures

A

vaisseux conducteurs traversent les feuilles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

morphologie stomates

A

modification forme cellules stomatiques (de garde) ouvre ostiole
paroi épaisse pour ostiole
microfibrilles de cellulose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

comment ouvre stomate?

A

si en turgescence (++ H2O)
pression tire microfibrilles
si flasque –> relâche

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

chloroplastes formés de

A

chlorophylle
stroma
thylakoïdes
espace intrathylakoïdien
1 granum/des grana

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

chlorophylle

A

pigment vert
absorbe NRJ lumineuse

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

stroma

A

liquie dense dans chloroplaste

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

thylakoïdes

A

sac membraneux aplatis
cholorophylle dans membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

espace intrathylakoïdien

A

espace à intérieur de membrane des thylakoïdes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

granum

A

empilement de thylakoïdes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

photon

A

quantité min NRJ de onde
invers. prop à longueur d’onde

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

pigments photosynth

A

chlorophylle alpha
chlorophylle beta
caroténoïdes

17
Q

c alpha

A

couleur bleu-vert
absorbe rouge/violet

18
Q

c beta

A

jaune-vert
absorbe bleu et rouge
pigment accessoire (++++ spectre absorption)

19
Q

caroténoïdes

A

jaune-orangé
absorbe bleu et vert
photoprotection (XX radicaux libres)