Which protist group is characterized by the presence of two flagella, one transverse and one longitudinal, situated in perpendicular grooves?
Euglenoids
Diatoms
Dinoflagellates
Slime molds
Related Questions
Which of the following kingdoms have no well defined boundaries?
Plantae
Protista
Monera
Algae
In which of the following groups, the cell wall has stiff cellulose plate on the outer surface?
Diatoms
Red algae
Dinoflagellates
Slime moulds
Which group of protists contributes significantly to the formation of red tides, often leading to marine animal mortality?
Diatoms
Dinoflagellates
Euglenoids
Ciliates
Which parasitic protist causes sleeping sickness, a disease transmitted by the tsetse fly?
Plasmodium
Entamoeba
Trypanosoma
Paramecium
What happens in anterior part of Amoeba at the time of formation of pseudopodia?
Plasma gel is converted into plasma sol.
Plasma sol is converted into plasma gel.
Ectoplasm is converted into endoplasm.
Endoplasm is converted into ectoplasm.
Which of the following features is NOT characteristic of slime molds during their plasmodial stage?
Multinucleate cytoplasm
Presence of cell walls
Phagotrophic nutrition
Formation of a network of veins
Which of the following combinations of characters is true for slime moulds?
Parasitic, plasmodium with true walls, spores dispersed by air currents
Saprophytic, plasmodium without walls, spores dispersed by water
Parasitic, plasmodium without walls, spores dispersed by water
Saprophytic, plasmodium without walls, spores dispersed by air currents
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
Which protist group is characterized by the presence of two flagella, one transverse and one longitudinal, situated in perpendicular grooves?
Euglenoids
Diatoms
Dinoflagellates
Slime molds
Amoeba differs from Entamoeba in having
Contractile vacuole
Pseudopodia
Ectoplasm
Cytostome
