In protozoa like Amoeba and Paramecium, a organ is found for osmoregulation which is
In protozoa like Amoeba and Paramecium, a organ is found for osmoregulation which is
- Contractile vacuole
- Mitochondria
- Nucleus
- Food vacuole
The Correct Option is A
Solution and Explanation
The correct option is (A) : Contractile vacuole
The process of controlling the water balance within a protozoan's body is known as osmoregulation. By pushing water out of the cell, contractile vacuoles assist in achieving this. Freshwater protozoans have it, but parasitic and marine protozoans don't. The contractile vacuole is necessary for the control of water balance in amoeba and paramecium.
Top Questions on sense organs
Rajat Singh was working as a supervisor in a stone quarry where rock, sand and gravel are extracted by techniques like digging, drilling, and blasting. As the years rolled by, Rajat started facing a loss in hearing. The high decibel sounds had damaged a part of his internal ear, though the tympanic membrane was intact.
(a) Give the collective term for the structure located in the internal ear.
(b) Name the sensory organ in the Cochlea which was damaged for Rajat Singh.
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Concepts Used:
Sense Organs
The nervous system must receive, accept, and processes information about the world outside in order to react, communicate, and keep the body safe and healthy. Much of this information comes by way of the sensory organs: the eyes, nose, ears, tongue, and skin. Specialized cells and tissues within these organs obtain raw stimuli and translate them into signals the nervous system can use. Nerves communicate the signals to the brain, which interprets them as sight (vision), sound (hearing), smell (olfaction), taste (gustation), and touch (tactile perception).
- In order to process, the eyes translate light into image signals for the brain.
- The ear uses bones and fluid to convert sound waves into sound signals.
- Exclusive receptors in the skin send touch signals to the brain.
- Chemicals present in the air stimulate signals the brain interprets as smells.
- The tongue is the chief organ of gustation.