Concept explainers
To define:
The term 'Pellicle', 'Trichocyst', 'Contractile vacuole', 'Pseudopod' and 'Test'.
Explanation of Solution
Pellicle:
A pellicle is a flimsy layer of protein that encloses cell membranein numerous sorts of protozoa, which are free-living or parasitic single-celled eukaryotes that feed on natural issue, for example, different microorganisms or natural tissues and trash.
Trichocyst:
Trichocyst, a structure in the cortex of certain ciliate and flog protozoans comprising of a pit and long, flimsy strings that can be catapulted because of specific improvements. Trichocysts might be broadly disseminated over a living being or confined to specific zones.
Contractile vacuole:
Contractile vacuoles are layer bound organelles that pump water out of the cell. They work to keep up a dissolvable/solute balance in the cell through a cycle called osmoregulation.
Pseudopod:
Pseudopod originates from the Greek words pseudes and podos, signifying "bogus" and "feet" individually. They are projections of the cytoplasm of unicellular protists or eukaryotic cell layer.
Test:
A test is the hard shell of some circular marine creatures, remarkably sea urchins and microorganisms, for example, testate foraminiferans, radiolarians, and testate amoebae. The term is likewise applied to the covering of scale insects.
Chapter 19 Solutions
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