• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12

Cell structures and their function.

Extracts from this document...


Cell structure Cell type describe whether their connective, epithelial, muscle or nervous etc Function Cytoplasm The cytoplasm of a cell Is where the chemical change that helps the cell is active. In this cell there are blood cells, bone cells, heart, skin and brain cells etc. The functioning of these cells are different to one anther but there role is to keep the body operating. The main functions of this cell are the growth, reproduction and cell expansion. Nucleus Nucleus is the cell that has the genetic material which controls the chemical activity in the cell. The nucleus is completed with the four structures that are bordered by the nuclear envelope which contains endoplasmic reticulum. The nucleus envelope is a double layered membrane that includes the contents of the nucleus during most of cell lifecycle. The space between the layers is called the perinuclear space and it connects with the rough endoplasmic reticulum. The nuclear envelope is separated by the nuclear pore which regulates the passage of molecules between the nucleus and the cytoplasm. Allowing some to go through membrane by building blocks for RNA and DNA into the nucleus as well as the molecules providing the energy for constructing genetic materials. ...read more.


Each of the chromosomes we inherit contains many genes. DNA The DNA consist units called nucleotide which is made up of a base, phosphate grouping and sugar. The DNA is made up of two strands twisted together into a spiral shape known as double helix. The DNA has to unwind and split at the hydrogen bond, this is so that each strands of the DNA can form new strands using the raw material in the cytoplasm. The DNA has a section that forms a set of instruction. DNA does not leave any proteins that are made up in ribosomes on the endoplasmic reticulum cell and the nucleus. The DNA works to carry codes to the base of the DNA. Secretary granules This is a membranous organelle which appears in a form of elongated, rounded, flattened or tubular vesicles. Each of the spherical organelles that are different sizes store concentrated substances like the nucleotides and digestive enzymes. These get released when it is needed after the neural or hormonal message. T-RNA T-RNA is a part of the RNA which carries amino acids that goes to the ribosome's that is made up of proteins. When the molecules of T-RNA attach to the ribosome's it rolls on the M-RNA, after that the rest of the amino acids are attached. ...read more.


The contractile organs have a special tissue and is the movement from the bone to the other parts of the body. Cardiac, skeletal and smooth muscle are in the muscle cells and its role is to create motion cases and force. Low motion can be caused by the muscle of there are movement of the internal organs. The smooth contraction and the cardiac occur when it can't be cognisant as its needed if it wants to live. The tissues of the mucle are made up of fibres, which bonds affective during the bodily movement. Names of the cell component Sources Cytoplasm http://images.google.co.uk/imgres?imgurl=http://www.daylilies.org/ahs_dictionary/cytoplasm.gif&imgrefurl=http://www.daylilies.org/ahs_dictionary/cytoplasm.html&h=200&w=200&sz=10&hl=en&start=3&tbnid=ZRfts7KmnBynHM:&tbnh=104&tbnw=104&prev=/images%3Fq%3DCytoplasm%26gbv%3D2%26hl%3Den%26client%3Dfirefox-a%26channel%3Ds%26rls%3Dorg.mozilla:en-GB:official%26sa%3DG BTEC National Health and Social Care book 1 Nucleus http://images.google.co.uk/imgres?imgurl=http://www.cartage.org.lb/en/themes/Sciences/Zoology/AnimalPhysiology/Anatomy/AnimalCellStructure/Nucleus/cellnucleus.jpg&imgrefurl=http://www.cartage.org.lb/en/themes/Sciences/Zoology/AnimalPhysiology/Anatomy/AnimalCellStructure/Nucleus/Nucleus.htm&h=315&w=340&sz=29&hl=en&start=5&tbnid=jEV4PvCVFJoRdM:&tbnh=110&tbnw=119&prev=/images%3Fq%3DNucleus%26gbv%3D2%26hl%3Den%26client%3Dfirefox-a%26channel%3Ds%26rls%3Dorg.mozilla:en-GB:official%26sa%3DG BTEC National Health and Social Care book 1 Plasma membrane http://images.google.co.uk/imgres?imgurl=http://www.freewebs.com/ltaing/plasma%2520membrane.gif&imgrefurl=http://www.freewebs.com/ltaing/homogenization.htm&h=307&w=403&sz=18&hl=en&start=1&tbnid=gA7T53oBLYIFaM:&tbnh=94&tbnw=124&prev=/images%3Fq%3Dplasma%2Bmembrane%26gbv%3D2%26hl%3Den%26client%3Dfirefox-a%26channel%3Ds%26rls%3Dorg.mozilla:en-GB:official%26sa%3DX BTEC National Health and Social Care book 1 Lysosome http://images.google.co.uk/imgres?imgurl=http://www.east-haven.k12.ct.us/dcmoore/Grade%25206/Cell%2520Websites/angelica_files/lysosome.png&imgrefurl=http://www.east-haven.k12.ct.us/dcmoore/Grade%25206/Cell%2520Websites/angelica.html&h=319&w=500&sz=195&hl=en&start=4&tbnid=KtQ21nlvZ78D0M:&tbnh=83&tbnw=130&prev=/images%3Fq%3Dlysosome%26gbv%3D2%26hl%3Den%26client%3Dfirefox-a%26channel%3Ds%26rls%3Dorg.mozilla:en-GB:official%26sa%3DX BTEC National Health and Social Care book 1 Mitochondria http://en.citizendium.org/wiki/Mitochondria BTEC National Health and Social Care book 1 Golgi apparatus http://www.bact.wisc.edu/Microtextbook/images/book_4/chapter_2/2-59.gif BTEC National Health and Social Care book 1 Endoplasmic Reticulum http://www.fairfield.k12.ct.us/tomlinson/ctomlinson03/CellProject04/Per2/2MS/endoplasmic_reticulum.jpg BTEC National Health and Social Care book 1 Ribosomes http://www-tc.pbs.org/wgbh/nova/photo51/images/pict-2001ribosome.jpg BTEC National Health and Social Care book 2 Chromosomes http://www.ikkeweer.net/cats-otherfiles/chromo.gif BTEC National Health and Social Care book 2 DNA http://www.sciy.org/MAINPAGEPHOTOS/dna.jpg BTEC National Health and Social Care book 2 Secretary granules http://www.mc.vanderbilt.edu/histology/labmanual2002/labsection1/Organelles03_files/image004.jpg BTEC National Health and Social Care book 2 T-RNA http://library.thinkquest.org/C0123260/basic%20knowledge/images/basic%20knowledge/RNA/tRNA.jpg BTEC National Health and Social Care book 2 M-RNA http://publications.nigms.nih.gov/thenewgenetics/images/ch1_trans.jpg BTEC National Health and Social Care book 2 ?? ?? ?? ?? ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Healthcare 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 AS and A Level Healthcare essays

  1. Marked by a teacher

    Produce a written assignment showing an understanding of the four main tissue types (epithelial, ...

    4 star(s)

    Nerve tissue requires more oxygen and nutrients than any other body tissue In the heart- The nervous tissue in the heart controls the heart's main functions. It is controlled by specialised nerves called nodes. A node is a specialised type of tissue that behaves as both muscle and nervous tissue.

  2. P2 - Physiology of fluid balance

    found in polluted air, for example, can reach the smallest passages within the body. Liquid droplets are also an example of particulate material. Particulate materials like I have described above can rest in the deeper tissues within the body causing harm to an individual.

  1. Unit 5 Anatomy and physiology in health and social care

    epithelial cells arranged in layers upon a basement membrane. Only one layer is in contact with the basement membrane; the other layers adhere to one another to maintain structural integrity. Although this epithelium is referred to as squamous, many cells within the layers may not be flattened; this is due to the convention of naming epithelia according to the cell type at the surface.

  2. Human Anatomy and Physiology

    enter the cell, it also controls what is inside the nucleus, because if the cell did not have a heat which controls something, everyone would die because the viruses and the infections would come in without permission, the nucleus contains all heditary material of the cell.

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