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- Question
What organelle allows some protists to detect light?
- Correct Answer
- An organelle called Eyespot allows some protists to detect light It allows the cells to sense light direction and intensity and respond to it by swimming either towards the light (positive phototaxis) or away from the light (negative phototaxis) Eyespot is a photoreceptive organelle found in the flagellate or (motile) cells of green algae and other unicellular photosynthetic organisms such as euglenids Eyespot-mediated light perception helps the cells in finding an environment with optimal light conditions for photosynthesis Eyespots are the simplest and most common "eyes" found in nature, composed of photoreceptors and areas of bright orange-red pigment granules
- 1. The mean surface temperature of the sun is estimated to be of the prder of
Options- A. 5500?C
- B. 4000?C
- C. 2000?C
- D. 1000?C Discuss
- 2. The Pyrenees mountains are located on the border between ____ and ____
Options- A. Romania, Bulgaria
- B. Norway, Sweden
- C. Hungary, Romania
- D. France, Spain Discuss
- 3. What is the relationship between resistivity r and conductivity s?
Options- A. R = s2
- B. R = s
- C. R > s
- D. R = 1/s Discuss
- 4. Which of the following is used as a lubricant?
Options- A. Graphite
- B. Silica
- C. Iron Oxide
- D. Diamond Discuss
- 5. Fenway Park is the home field of what Major League Baseball team?
Options- A. New York Yankees
- B. Chicago White Sox
- C. Montreal Expos
- D. Boston Red Sox Discuss
- 6. The religion of Afghanistan is
Options- A. Islam
- B. Buddhism
- C. Hinduism
- D. Christianity Discuss
- 7. Who was the first Indian woman to win a medal in the Olympics?
Options- A. P.T.Usha
- B. Karnam Malleshwari
- C. Kunjarani Devi
- D. Bachendri Pal Discuss
- 8. Who is known as 'Desert Fox'?
Options- A. Bismarck
- B. Eisenhower
- C. Gen. Rommel
- D. Walter Scott Discuss
- 9. The letters, "DOS" stand for...
Options- A. Data Out System
- B. Disk Out System
- C. Disk Operating System
- D. Data Operating System Discuss
- 10. Which of the following countries is not a member of SAARC?
Options- A. Nepal
- B. Bangladesh
- C. Afghanistan
- D. Myanmar Discuss
More questions
Correct Answer: 5500?C
Correct Answer: France, Spain
Correct Answer: R = 1/s
Correct Answer: Graphite
Correct Answer: Boston Red Sox
Correct Answer: Islam
Correct Answer: Karnam Malleshwari
Correct Answer: Gen. Rommel
Correct Answer: Disk Operating System
Correct Answer: Myanmar
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