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

Specialised Cells

Page
  1. 1
    1
  2. 2
    2
  3. 3
    3
  4. 4
    4
  5. 5
    5
  6. 6
    6
  7. 7
    7
  • Essay length: 1261 words
  • Submitted: 11/02/2010
  • Reviewed by: (?) skatealexia
Share this essay:
AS and A Level Molecules & Cells

Peer review rating

3 star(s)

read the full review

The first 200 words of this essay...

With the aid of annotated diagrams, discuss the relationship between the structure and function in four specialised human cells.

By Mark Cannan.

Within the human body the cell is the smallest living organism, it is a microscopic package that contains lots of different organelles that are necessary to survive such as mitochondria, nucleus, Golgi body, rough and smooth endoplasmic reticulum, ribosomes, lysosomes, cytoplasm just to name a few. Cells were first discovered by Robert Hooke, an English philosopher in 1665 and from there, a cell theory was formed. Through the improvement and development of microscopic technologies, cells were looked at even closer and separated into two categories, prokaryotic (bacteria) cells and eukaryotic (animal) cells. There are over two hundred different types (in all shapes and sizes) and it is estimated that there are over 50 trillion cells in the human body. Cells reproduce all the time through mitosis to replace damaged or dead cells.

http://en.wikipedia.org/wiki/File:Simplified_spermatozoon_diagram.svg (Accessed 30/10/09)

The picture above is an illustrated diagram of a spermatozoon cell, otherwise known as a sperm, which is the male reproductive cell. Starting from puberty and leading through to old age, the testes will produce over

Read more
The above preview is unformatted text

Found what you're looking for?

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

Review of essay

Reviewed by: skatealexia

Rating: 3 star(s)

Response to the question

Okay as a basic structure piece, but does not link structure to function well at all. Introduction is okay, but goes into the background of how cells were discovered too much which is not the main point of the essay, also too descriptive, the text could be a lot more concise and to the point of what the essay is going to be about and the four cell types that the candidate is going to discuss which is not mentioned at all. Main body of the text could link structure to function a lot better than it currently does, and it is below the level I would expect from an A level candidate. Conclusion could have grouped the different cells and their functions and importance together a lot better. References at the end hard to read with the font obscuring most of the words.

Level of analysis

Diagrams are at the level I would expect for A level, but rather than being copied from the internet it would have been better to see them hand drawn and the relevant bits related to the course then labelled, perhaps formulating it as a spider diagram around the picture relating each labelled part to its function and linking parts together to form unified functions. Diagrams overlap the text in spaces which should have been avoided. Links as references are put into the main body of text when they should have been cited properly and then included in a bibliography at the end of the text.Some sentences around the sperm explaining the structure related to function are incomplete. I would also like the simplistic analysis of the function described in more depth. The text after the diagram does not develop the essay further but repeats the text again and adds in some irrelevant facts. Does not link structure to function very well throughout the essay, only limited linkage.

Quality of writing

Some issues with spacing between words and using capital letters where they are not needed. Spelling okay, some issues with grammar in places and the rest of the punctuation mainly okay.

Found what you're looking for?

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

Marked by a teacher

This essay has been marked by one of our great teachers. You can read the full teachers notes when you download the essay.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review on the essay page.

Peer reviewed

This essay has been reviewed by one of our specialist student essay reviewing squad. Read the full review under the essay preview on this page.