BSC 464 EXAM 1 QUESTIONS AND CORRECT ANSWERS. VERIFIED 2025/2026

BSC 464 EXAM 1 QUESTIONS AND
CORRECT ANSWERS. VERIFIED
2025/2026.




• Multinucleated filament without cross walls:

1. Siphonaceous

2. Heterotrichous

3. Pseudoparenchyma

4. Postrate

5. Discoid - ANS 1. Siphonaceous



Colonial thallus with a fixed number of cells

1. Heterotrichous

2. Erect

3. Coenocyte

4. Coenobial

5. Ameboid - ANS 4. Coenobial



An algal thallus with a true tissue and cells dividing in three directions

1. Parenchyma

2. Plectenchyma
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,3. Collenchyma

4. Sclerenchyma

5. Pseudoparenchyma - ANS 1. Parenchyma



Algal cell used for asexual reproduction as a resistant stage

1. Autospore

2. Monospore

3. Tetraspore

4. Zygospore

5. Akinete - ANS Akinete



A plant body lacking true roots, stems, and leaves

1. Colony

2. Monadoid

3. Filament

4. Thallus

5. Coenobial - ANS Thallus



A dioecious alga is always ________

1. Homothallic

2. Isogamous

3. Monoecious

4. Oogamous

5. Heterothallic - ANS Heterothallic



Specimen found at the type locality
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, 1. Isotype

2. Holotype

3. Topotype

4. Lectotype

5. Syntype - ANS Topotype



The ending of phyceae (as in Ulvophyceae) designates the rank of ________

1. Family

2. Order

3. Division

4. Genus

5. Class - ANS Class



Group of organisms that have descended from a single common ancestor

1. Algae

2. Monophyletic

3. Unnatural

4. Thallophytes

5. Chimera - ANS Monophyletic



______ explains why algae are so diverse and also sharing many commonalities

1. Photosynthesis

2. Respiration

3. Ecology

4. Metabolism

5. Endosymbiosis - ANS Endosymbiosis

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