Biology Essay on The Cell Lab Assignment

The Cell Lab Assignment

Living things can either be single-celled (prokaryote) or multicellular (eukaryote). Prokaryotes are single-celled living organisms that do not have membrane-bound organelles in them. Eukaryotes are found in multicellular living things, and their organelles are membrane-bound. Some of the multicellular important organelles include mitochondria, golgi apparatus, ribosomes, endoplasmic reticulum and lysosomes (Cobb 109).


  1. Plasmodesmata in plants are used in transportation and in connecting different parts of the cell because they are elongated and seem to connect differently shaped cells.
  2. I think that there are many plasmodesmata connecting the different cell organelles for proper communication between the different cell organelles.
  3. I think that onion cells do not have a chloroplast because they do not make their own food under direct sunlight (they grow underground) (Orchard & Nation, 2014).

Materials and methods

A Microscope, slides, cover slides and a few blades would be required for this series of experiments. An onion bulb (s) would also be required.

Onion bulb

An onion was cut into four pieces and a fleshy leaf had the thinner piece of its epidermis removed. The tissue was placed on a drop of water on a slide and a cover slide placed on it. Neutral res was placed on the edge of the slip and allowed to penetrate into the tissue for about 5- 10 minutes. The slide was then placed on the microspore for viewing while trying to focus on the vacuoles.

Examination of amoeba, paramecium and sporigyra

A small ring of methylcellulose was placed on a microscope slide with the purpose of slowing down the paramecium, and then the culture with paramecium placed on the slide. A toothpick was used to mix the contents and a cover slide placed over it.

Observations were made and one could observe hair like structures (cilia) which are used for locomotion.

Works cited

Cobb, Allan. Cell Theory. New York: Chelsea House. 2011, Print.

Orchard, Guy and Brian Nation. Cell Structure & Function. Oxford: Oxford University

Press. 2014, print.