Foraminifera

Observed this bunch of foraminifera on a permanent slide.

Bipinnaria larva

A bipinnaria is the first stage in the larval development of most starfish. It is free-living, swimming as part of the zooplankton. When it initially forms, the entire body is covered by cilia.

Trichomes

Trichomes serve a variety of functions, depending on their location. As root hairs (and as leaf hairs in epiphytes), trichomes absorb water and minerals. As leaf hairs, they reflect radiation, lower plant temperature, and reduce water loss. They also provide defense against insects.

Bryophyta Leaves

Funaria hygrometrica is the most common species. Funaria hygrometrica is called “cord moss” because of the twisted seta. The name is derived from Latin word “funis” meaning a rope. Leaves are arranged on the axis in spiral fashion. The leaves are sessile, simple, green and distinct mid rib. The leaf is single layered thick except…

Elodea plant cell

This Elodea leaf cell exemplifies a typical plant cell. It has a nucleus, and a stiff cell wall which gives the cell its box-like shape. The numerous green chloroplasts allow the cell to make its own food (by photosynthesis). The central vacuole takes up most of the volume of the cell. It is transparent, but…

Gram staining of bacteria

Bacteria are broadly divided into two groups, Rods and Cocci depending on the shape of their cells. Cocci refer to bacteria which are spherical, whereas Rods are rod shaped. An identification process known as Gram Staining shows the bacteria stained red/pink, which classes the bacteria as Gram negative or Gram positive.This procedure relies on the…

Hair follicle

The hair follicle is a dynamic organ found in mammalian skin. It resides in the dermal layer of the skin and is made up of 20 different cell types, each with distinct functions. The hair follicle regulates hair growth.