The General Certificate of Secondary Education (GCSE) is an academic qualification pursued by pupils of secondary education in England, Wales and Northern Ireland. Students pursuing GCSE are often asked to write a biology assignment on specialised cells. We understand that writing well-researched assignments on specialised cells can be quite daunting.
This blog will provide you with an
ultimate guide on the specialised cells. If you are asking “what are
specialised cells?” or asking “How to write a detailed assignment on
specialised cells?” read this post to
discover the definitions and some
intriguing examples of specialised cells.
What’s the best part?
Unlike your complex recommended readings and the complicated lessons of the GCSE curriculum, this blog explains the topic of specialised cells with relative ease. Bookmark this post before you start to write your assignment on specialised cells.
What is a specialised cell?
Many GCSE students often question,
“What is a specialised cell?” Well, let’s try to figure it out.
The human body is an amazing feat of
engineering. It includes nerve fibres, blood vessels, digestive system and a
strong skeletal framework. Even more incredible is the fact that all of this is
formed from only one type of component, which is the cell.
The cell is a basic unit of life.
Among them, some cells are unique. They are known as specialised cells. In
fact, the human body is made up of more than 200 types of specialised cells.
Specialised means even though they
are similar, these cells differ in shape, size, or function depending on the
role in our bodies. These are the cells that have developed certain specific
characteristics to perform a particular function.
Example: Red
blood cells are significant examples of a specialised cell. They carry oxygen
around the human body when it is bound to a protein called the haemoglobin.
Specialisations:
- RBC lacks a
nucleus, which allows them to contain more haemoglobin.
- These
specialised cells have a biconcave shape that increases their surface area. It
enables them to absorb an increased amount of oxygen quickly.
- RBC has a
thin outer membrane to allow for fast oxygen diffusion.
If you are still pondering over the
question, “What are specialised cells?” click here to
know more.
BBC Bitesize Biology Specialised cells: Definition
Bitesize is the BBC’s free study
support resource for school-age students in the United Kingdom. It is designed
to aid GCSE as well as other students in schoolwork and for older students in
exams. The Key Stage 1, 2 and 3 along with the GCSE section covers a whole
range of subjects like English, History, Biology, Geography, History, French,
Maths, Music and much more. It can help students nearly anywhere in the world.
According to the biology tutors of
BBC Bitesize, often the GCSE students type “What are
specialised cells?” into the search bar.
According
to BBC Bitesize Biology tutors, specialised cells are as follows:
- Specialised
cells have a distinct role to perform.
- Every
specialised cell has a different and unique function. They have special
features that allow them to perform specialised functions.
- A remarkable
example of a specialised cell is the muscle cells. They are held together in
bundles, which pull them together to make the muscles contract.
Specialised plant cells: Definition
Specialised plant cells have some
unique significant characteristics in addition to what the normal cell does.
Example-
In pitcher plant, the leave cells are specialised to trap the insects.
Similarly, in mangrove plants, the root cells are specialised to provide air
and water into the tree by growing out of the soil.
List of specialised plant cells:
Here is a list of specialised plant
cells. Have a look at them:
- Root Hair
Cells: One of the specialised cells of plants is root hair cells. It allows
plants to absorb more water. They also enable a plant to absorb the minerals it
needs to be alive.
- Xylem cells: The xylem is
a specialised cell used to transport the water up to the stem of the plant and
into the leaves. The xylem vessels are made up of a series of connected dead
xylem cells. The end walls of the dead cells are broken to allow the water to
move through.
- Phloem cells: The phloem
is specialised to transport food products to parts of the plant where they are
required. The end walls of phloem cells contain small holes to allow food
products to move up and down the phloem vessels.
Examples of specialised cells in the human body
Apart from the plants, there are
specialised cells in the human body as well. These cells are different from the
normal cells like the nerve cells, which controls neural coordination. Let’s
have a look at the specialised cells in the human body:
- Muscle cells: Muscle
cells help a human being to make movements. These cylindrical cells are formed
of banded fibres that allow contraction.
- Sperm cells: Specialised
sperm cells are essential for human reproduction. These cells are highly
mobile, as they move to locate an egg for fertilisation. The mitochondria
within the sperm cells provide the energy that these specialised cells move
with a high rate of speed.
- Leukocyte: Leukocytes are
specialised cells that work to keep the human body free of infection. These
cells find and destroy microbes within the human body, responding to and
treating the infection.
- Red blood
cells: RBC carries oxygen around the body, delivering it to organs that
require this life-giving gas. Cells of this type are primarily composed of
haemoglobin, a chemical that allows the uptake and carrying of oxygen.
- Neurons: Neurons are
specialised cells that carry messages into the human brain. These cells have
extensions known as dendrites and axons that bring information into and release
information from the cell itself. Some of these also carry chemicals that are
specialised for electrochemical communication. It allows them to communicate
with each other form the basic thought process and makes the body functioning
possible.
To conclude,
Save this post to the bookmark tab on
your laptop so that you can find all the information on specialised cells when
you are drafting the assignment. With this detailed guide, you can write a
remarkable assignment that is sure to fetch top-notch grades this semester.
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