Algues Flashcards

1
Q

Caractéristiques de l’habitat (4)

A

Lumière, humidité, élément nutritif (sel) et phytoplancton

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2
Q

Façon de se nourrir

A

photosynthèse

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3
Q

Capacité de fixé O2 = …

A

Producteur primaire de matière organique (autotrophe)

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4
Q

Forme d’algue unicellulaire

A

Sphère, bâton, fuseau

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5
Q

Type d’agrégat algue pluricellulaire

A

Volvox (thalle)

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6
Q

Composition paroi cellulaire

A

cellulose (résistance choc mécanique)

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7
Q

Nombre d’espèces

A

25000

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8
Q

Taille

A

50 u à 75m

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9
Q

Locomotion

A

Flagelle + cils

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