In this article we will discuss about the preparation of permanent mounts of various organisms. 1. Euglena: Living Euglena, for study, may either be collected from a patch of stagnant water having decaying green leaves or may be obtained from cultures in laboratory. For purpose of study in the living condition take a few euglena in a dropper or a [...]
The following points highlight the seven main processes involved in preparation of permanent slides. The processes are: 1. Killing 2. Fixing and Hardening 3. Staining 4. Dehydration 5. Clearing 6. Mounting 7. Labelling. Process # 1. Killing: It is the first step in the preparation of permanent mounts and is of prime importance. By killing we mean the instantaneous stoppage [...]
In this article we will discuss about the anatomy of sycon. L.S. of Sycon: Fig. 93. L.S SYCON 1. Body wall is diploblastic with an outer ectodermal or dermal epithelial layer and inner gastric epithelial layer or endoderm. 2. Non-cellular mesenchyme layer with interspersed monaxon and triaxon spicules is present in between the two layers. 3. The dermal epithelium is [...]