
ALGA LAUT UTS 2025
Authored by wahyu nugraha
Biology
University
Used 1+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Alga berbeda dari tumbuhan tingkat tinggi karena ...
Tidak memiliki klorofil
Tidak memiliki akar, batang, dan daun sejati
Tidak dapat berfotosintesis
Tidak hidup di laut
2.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Organisme yang dianggap sebagai nenek moyang tumbuhan darat adalah ...
Rhodophyta
Phaeophyta
Chlorophyta
Cyanobacteria
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Peristiwa “Great Oxidation Event” (~2,4 miliar tahun lalu) disebabkan oleh ...
Aktivitas vulkanik
Fotosintesis Cyanobacteria
Evolusi tanaman darat
Terbentuknya atmosfer nitrogen
4.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Alga berperan penting secara ekologi karena ...
Menghasilkan oksigen dan menjadi produsen primer
Merusak habitat laut
Menghasilkan racun
Tidak berperan dalam rantai makanan
5.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Salah satu dampak negatif dari alga terhadap lingkungan laut adalah ...
Meningkatkan kecerahan air
Menurunkan kadar oksigen akibat algal bloom
Menyediakan substrat untuk ikan
Menyerap logam berat
6.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Struktur vegetatif alga disebut ...
Rhizoid
Thallus
Frustule
Pneumatocyst
7.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Pigmen yang memberi warna merah pada Rhodophyta adalah ...
Klorofil b
Karoten
Fikoeritrin
Fucoxanthin
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