• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Microscope observation of animal and plant cells

Extracts from this document...

Introduction

Microscope observation of animal and plant cells Introduction Cells represent the make up of our being as well as many other organisms whether they are unicellular or multicultural. Cells can also be complex or quite simplistic in design and contents, depending on the purpose of its function in an organism. Typically when studying cells some form of magnifications must be used to see the finest details of the cell, microscopes are used due to constraints in human eyes that only allow us to see to so much. In essence their use is to see what the eye cannot. This may include processes such as mitosis, phagotycosis and other forms of transport within the cell. ...read more.

Middle

Cheek cell Onion Stomata. All of the specimens where viewed under x100 magnification, this is achieved by the lenses on the eye piece producing x10 and then the objective lenses producing an additional x10 with in turn give x100 magnification. Discussion The focus of this practical involved making use of epithial tissue in animals and surface tissue in plants. There are different types of epithial cells the ones from the cheek cell are squamous epithelial cells. They form the epithial tissues that are continuous sheets, which cover most structures or cavities within the body.i Due to the limitations of the light microscopes, we are only able to observe some of the organelles within the 3 structures we viewed. ...read more.

Conclusion

Parts of the cell that's are affected by eosin include the cytoplasm, because of its basic nature. Haematoxylin is not really regarded as an actually a dye although this is debatable by some, where as eosin is an acid dye. Haematoxylin is able to develop colour-like properties when oxidized.iii Because of their different properties they both sow their importance in staining because of their characteristics. As stated within the practical organelles were limited to what could be seen with the light microscope. An electron microscope would have highlighted organelles such as Golgi body, mitochondria etc. in three dimensions. Reference: i Barbour, M. et al. (1997) Biology. London: Collins Educational ii http://protocolsonline.com/histology/haematoxylin-eosin-he-staining/ accessed on 17/11/2010 iii http://www.lab.anhb.uwa.edu.au/mb140/MoreAbout/stains.html accessed on 17/11/2010 Dominic Areago ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our University Degree Microbiology section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related University Degree Microbiology essays

  1. Describe the Concept and Discuss the Importance of Homeostasis

    All of these processes, take glucose out of the blood, so lowering the blood glucose levels towards the set point. A drop in blood glucose concentration is detected by the ? and � cells in the pancreas. The ? cells respond by secreting glucagon and the � cells respond by stopping the secretion of insulin.

  2. In this essay I am going to explore the functions of carbohydrates within the ...

    Cellulose is not digested by humans; ruminants such as cows and horses are able to digest cellulose. This is because they have specialised cells, which help secrete enzymes known as 'cellulases'. These cells are called 'symbiotic bacteria'. There are also many other polysaccharides, which provide a variety of different functions, for example chitin.

  1. Nucleic acid hybridization

    or 12-fold (for DNA-RNA duplexes). Table B: Factors influencing the rate of hybridisation3(continued) Factors Description Probe complexity 1. Nucleic acids which have high complexity (no significant sequence repetition) hybridises in solution more slowly than nucleic acids that contain repetitive sequences (low complexity).

  2. Identification of an Unknown Enterobacteriaceae. The purpose of the experimental determination of an unknown ...

    was added directly over it. If the bacteria turned black, it indicated that the bacteria were oxidase positive. If there was no color change observed other than the reagent, then the bacteria were oxidase negative. (Alachi, P. 2007) Table 1-1.

  1. Folic acid. In 1993 the Food and Drug Administration (FDA), in the USA suggested ...

    Although folic acid deficiency is not the sole factor for NTD occurrence it still plays a major role but the environment and genetic factors may have a little affect and this should be recognised. Prevention of oral and facial birth defects such as cleft palate occurring is also done by folic acid.

  2. The biology of Fusarium oxysporum f. sp. gladioli, causal agent of corm rot of ...

    to be a foundation in controlling Fusarium wilt, which is a commonly disease associated with acidic conditions ( Woltz and Jones 1981). F.oxysporum spores germination were influenced by the difference in the pH (Peng et al. 1999) Nutrition The stages of Fusarium growth depend on the ecological balance and nutrient

  1. Free essay

    How had research over the past 25 years led us to think that microbes ...

    Piezophiles (and pressure tolerant bacteria) are important in the search for extraterrestrial life as it allows for the possibility of organisms thriving in high-pressure conditions elsewhere in the solar system such as the sub-surface of planets. Therefore, although space missions have detected no life on the surface of planets (Klein

  2. Mast Cell Degranulation Practical

    Salbutamol is a selective beta2-adrenergic receptor agonist (JFC 2011), therefore its mechanism of action is that it activates adenylyl cyclase, which in turn converts cyclic ATP into cyclic AMP (cAMP). Cyclic AMP then inhibits the degranulation of mast cells (Widmaier, E. et al. 2008) (Rang, H. P. et al.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work