Certain dinoflagellates exhibit a unique phenomenon known as 'bioluminescence'. Which of the following accurately describes the underlying mechanism of this phenomenon?
Photosynthesis using specialized pigments
Fluorescence due to chlorophyll a
Oxidation of luciferin by luciferase in specialized organelles called scintillons
Chemosynthesis utilizing sulfur compounds
Related Questions
If Mendel had chosen a plant with a very long generation time, which aspect of his experiments would have been MOST negatively affected?
The ease of cross-pollination.
The observability of contrasting traits.
The speed of obtaining results and observing inheritance patterns.
The control over self-pollination.
If phytoplankton were significantly reduced in the ocean, what would be the most likely direct impact?
Increase in predator populations
Decrease in zooplankton populations
Increase in dissolved oxygen
No significant change
Protozoans are divided into…… groups. Most suitable word to fill the blank is
Three
Four
Two
Eight
The free living thalloid body of the slime mould is known a
Protonema
Plasmodium
Fruiting body
Mycelium
Cell wall has stiff Cellulose plates on the surface of Cells in:
Gonyaulax
Euglena
Diatoms
Slime Moulds
Which of the following is a slime mould?
Rhizopus
Physarum
Thiobacillus
Anabaena
Protozoans are
Heterotrophs
Autotrophs
Producer
Saprophytes
In Amoeba, the contractile vacuole is present
Near the trailing end
Near the advancing end
At the middle of the body
Anywhere inside the body
Slime moulds in the division-Myxomycota (true slime moulds) have
a multinucleate plasmodial stage
chitinous cell walls
chlorophyll
multicellularity in all stages of their life cycle
Which of the following is not a character of Protista?
Eukaryotic cell structure
Presence of complex tissue organization
Mostly unicellular
Can be autotrophic or heterotrophic
