[TOP] Algae MCQs And Answers (Multiple Choice Questions)

These Algae MCQs and Answers are most important for your upcoming biology examinations. These algal MCQs and answers will help you to learn and review the entire topic of algae. These questions have been designed by keeping the recent trends in the education system under consideration so that students will be taught with the best possible information available in the market. These alga MCQ preparation tests are highly recommended for students who are studying biology in 11th and 12th Standards.

Algae MCQs and Answers

1. Which among the following are called salad leaves?

Ulothrea

Ulva

Chladophora

Spirogyra

2. Which among the following are incorrect about volvox?

Volvox grow in colonies

The structure that connects them is called cytoplasmic bridges

Daughter colonies of volvox grow inside the parent colony

They are immobile due to the absence of flagellum

3. The inner cell wall in spirogyra is made up of ________

Pectin

Cellulose

Chitin

Lipids

4. Which among the following is incorrect about Ulothrea?

Ulothrea is a multicellular filamentous algae

Ulothrea contains three different sets of cells i.e. apical, basal and lateral cells

Apical cells are rounded at one end whereas basal cells are elongated at one end

Every cell contains chlorophyll in them

5. Which among the following are incorrect about Chladophora?

Chladophora is a filamentous branched algal

Chladophora is also called river weed in some areas

It is edible and is used in salads

There are many different varieties of chladophora that are difficult to be classified

6. Which of the following is not the basis for sub-classification in plants?

Well differentiable structure

Presence of seeds

Structure of branches

Seed coat

7. The word “Thallophyta” means ________

plants that don’t have well-differentiable structure

plants that have large leaves

plants that grow in colonies

plants that are filamentous

8. Which among the following is an incorrect statement?

Chlamydomanas is an example of unicellular algae

Chlamydomanas have flagella to promote their movement

Ulothrea is a unicellular autotrophic algal

Spirogyra attains its name because of spiral like arrangement of chloroplasts

9. Which of the following modes are used by spirogyra to reproduce?

Fragmentation

Multiple fission

Spore formation

Binary fission

10. During unfavorable conditions, the outer layer that is formed in Chlamydomonas is called ______

Cyst

Nuclear membrane

Cell wall

Cellular membrane

11. Which among the following is an incorrect statement?

Multiple fission is a process through which many individuals are produced by repeated nuclear division

Multiple fission takes place under suitable conditions

During multiple fission, an outer layer called cyst is formed

Nucleus divides repeatedly and new individuals are formed inside the cyst after which cyst breaks to release new individuals

12. Which among the following is an incorrect statement?

Most of the algae reproduce using spore formation

Asexual spores are called as zoo-spores and the reproductive part in algae is called zoosporangium

Under favourable conditions, these organisms germinate to form new organism

Zoo-spores are non-motile and flagellated

13. Reproduction in humans is an example of _______

Isogamous

Anisogamous

Oogamous

Sapiogamous

14. The male gamete in the sexual reproduction of algae is called as _______

Antherozoid

Egg

Basidiogamete

Zoosperm

15. Gelidium and Gracilaria is used in the formation of _______

Agar

Vinegar

Yoghurt

Beer

16. Which among the following is incorrect?

Algae help in increasing oxygen levels in the environment

Chlorella and Spirulina are multi-cellular algae that are rich in proteins and are used as food supplements for space travelers

Chlorophyceae comprise algae that contain chlorophyll a and chlorophyll b

Chlorophyceae store food as proteins, starch or as oil droplets

17. The storage bodies present in chloroplasts of Chlorophyceae are called as ________

Pyrenoids

Carragen

Stroma

Alga

18. Food is stored in Phaecophyceae as ___________

Starch

Laminol

Glucose

Fructose

19. A leaf-like photosynthetic organ in Phaecophyceae is called as ________

Frond

Stipe

Holdfast

Algin

Algae MCQs and Answers

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