Algae problems
- 1. Which of the following is correct?
Options- A. All members of photolithotrophic autotrophs are also members of algae, but not all members of algae are members of photolithotrophic autotrophs
- B. All members of algae are also members of photolithotrophic autotrophs, but not all members of photolithotrophic autotrophs are members of algae
- C. All members of photolithotrophic autotrophs are members of algae, and all members of algae are members of photolithotrophic autotrophs
- D. No member of photolithotrophic autotrophs is a member of algae Discuss
Correct Answer: All members of algae are also members of photolithotrophic autotrophs, but not all members of photolithotrophic autotrophs are members of algae
- 2. Which algal division never produces motile, flagellated cells among any of its members?
Options- A. Chlorophyta
- B. Chrysophyta
- C. Phaeophyta
- D. Rhodophyta Discuss
Correct Answer: Rhodophyta
- 3. Frustules made of silica are characteristic of
Options- A. euglenoids
- B. diatoms
- C. desmids
- D. seaweeds Discuss
Correct Answer: diatoms
- 4. Agar, which is the solidifying agent in many bacterial culture media, is part of the cell wall of
Options- A. chlorophyta
- B. chrysophyta
- C. pyrrophyta
- D. rhodophyta Discuss
Correct Answer: rhodophyta
- 5. Algae are found in all of the following places except
Options- A. oceans
- B. soils
- C. lakes and streams
- D. associates with fungi Discuss
Correct Answer: soils
- 6. The kelps are algae found in
Options- A. chlorophyta
- B. chrysophyta
- C. phaeophyta
- D. pyrrophyta Discuss
Correct Answer: phaeophyta
- 7. Which of the following algal divisions is characterized by possession of chlorophylls A and B, starch as the energy storage material, cellulosic cell walls and live in freshwater and marine habitats?
Options- A. Chlorophyta
- B. Chrysophyta
- C. Phaeophyta
- D. Pyrrophyta Discuss
Correct Answer: Chlorophyta
- 8. Laminarin is an energy storage material characteristic of
Options- A. chlorophyta
- B. chrysophyta
- C. phaeophyta
- D. pyrrophyta Discuss
Correct Answer: phaeophyta
- 9. Which of the following algal divisions is characterized by possession of chlorophylls A and B, paramylon as the energy storage material, and the presence of a pellical instead of a cell wall?
Options- A. Chlorophyta
- B. Euglenophyta
- C. Pyrrophyta
- D. Chrysophyta Discuss
Correct Answer: Euglenophyta
- 10. Algae is a nonvalid taxinomic term that refers to
Options- A. eukaryotic organisms that have chlorophyll a and produce O2
- B. well developed cellular structure including a conducting system
- C. Both (a) and (b)
- D. none of the above Discuss
Correct Answer: eukaryotic organisms that have chlorophyll a and produce O2
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