Task 3: Specialised Cells

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Year 7 Independent Learning Project. (ILP)
Ensuring Excellence
Subject: Science
ILP Title: Cells
In this project you will learn:



The basic structure of a plant and animal cell
The function of the different parts of these cells
How cells may become specialized to carry out certain
functions within living organisms
Time you should spend on
this project:
Up to 3 hours
At the end of this project you should hand to your teacher:


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Task 1: Using a microscope (11 marks)
Task 2: Cell Structure (19 marks)
Task 3: Specialised Cells (29 marks)
You should break down your time in the following way:



Up to 30 minutes on Task 1
Up to 1 hour on Task 2
Up to 1.5 hours on Task 3
Weblinks you should use to help you with this task:
 www.lgfl.skoool.co.uk/keystage3.aspx?id=63
 Then follow links; Click on London Grid; KS3 Biology

www.bbc.co.uk/bitesize/ks3/science/organisms_behaviour_health/cells_systems
/revision/2/
OR

Use a search engine such as www.google.co.uk; search for www.skoool.co.uk or
www.bbc.co.uk/bitesize/ks3/science and ‘search’ on these websites for cell structure.
Your parents may be able to help you by:
Looking at your work in the booklet and checking you have completed all the tasks.
Helping you to use the internet to find scientific definitions of key words.
Helping you to use these key words to answer the questions in the booklet.
If you need extra help the SEN department has additional sheets that may be completed and
attached to your booklet.
Your work will be assessed by:
A total mark /59 will be awarded.
The key words to learn in this project are:
Nucleus
Cytoplasm
Vacuole
Cell membrane
Cell wall
Chloroplast
Microscope
Scale
Cell Specialisation
Blood Cell
Root hair cell
Nerve Cell
Palisade Cell
All living things are made from cells. We cannot see cells with the
naked eye as they are MICROSCOPIC. We need a microscope to see
them.
Log onto the web site:http://lgfl.skoool.co.uk/keystage3.aspx?id=63
 Complete the labels on the two diagrams below
 Use the ‘Using a microscope’ option (Number 10) to help you
You would put your specimen onto one of these to place onto the
stage of the microscope…
You may see these down the microscope…
(7 marks)
 Click on ‘Review’ and read the information
 Then click on ‘Test’
 Answer the two questions
 Then circle the correct answers:-
Q1.
A
B
C
Q2.
A
B
C
(2 marks)
Q3. Microscopes can MAGNIFY the image you can see.
Does magnify mean to make an object bigger or smaller?
(1 mark)
Q4. A microscope that allows you to see MORE DETAIL is said to
give more RESOLUTION.
Which of the following two pictures, A or B, provides the greater
degree of resolution?
A
(1 mark)
B
Cells contain structures that have different jobs to help the cell
carry out its function.
 Log onto:www.bbc.co.uk/bitesize/ks3/science/organisms_behaviour_health/c
ells_systems/revision/2/
 Read through page 2 on Cells.
 You will see pictures here of what real plant and animal cells
look like down a microscope.
 Read through page 3.
 You will see here diagrams of how plant and animal cells are
drawn in science books.
Q5. Draw and label a diagram of each cell, both animal and plant
below:-
(9 marks)
Task 2 continued
 Research the answers to the following questions
 Write down the answers next to the question and then find
them in the wordsearch on the next page:-
Q6. What structure controls which substances enter and leave
cells?
Q7. Where do most chemical reactions occur?
Q8. Where is most of the genetic information found?
Q9. What structures, only found in plant cells, allow a plant to make
glucose by photosynthesis?
Q10. What is found in the nucleus that may also be worn on ‘out of
school uniform days’?
Q11. What green pigment allows a plant to absorb light energy?
Q12. What substance is found inside the vacuole?
Q13. What substance in plant cells walls, is tough and offers plant
cells more support?
Q14. What is found outside a plant cell membrane to offer support
to plants?
Q15. What structure inside plant cells offers extra support and
keeps them firm?
(10 marks)
A specialised cell is a cell with SPECIAL FEATURES to help it carry
out a particular function in a living organism.
Task 3
 Log onto:www.bbc.co.uk/bitesize/ks3/science/organisms_behaviour_health/c
ells_systems/revision/4/
(This is the same as page 4 from the previous website you used).
 Read the information on page 4 and answer the following four
questions:-
Q16. What does multicellular mean? (1 mark)
Q17. What is a specialised cell? (1 mark)
Q18. Draw lines to match up the correct picture with the correct
type of cell. Draw more lines to match picture of cell to its correct
function.
(12 marks)
Absorbs water and
anchors the plant in
Palisade Cell
the soil
Swims to fertilise the
egg
Egg cell
Absorbs lots
of light energy
Root hair cell
to carry out
photosynthesis
Female sex cell that
Red blood cell
may fertilised by a
sperm cell
Sperm cell
Cell contains a red
pigment called
haemoglobin
.
Nerve cell
Carries electrical
signals around the body
Q19. Use page 4 from this website for information:http://www.bbc.co.uk/bitesize/ks3/science/organisms_behaviour_h
ealth/cells_systems/revision/4/
Discuss how and why these different specialised cells have different
shapes.
(6 marks)
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Q20. Now click on ‘Test’ at the bottom of this webpage. Have a go
at the nine questions and record your mark in this box
(9 marks)
Assessment
Name______________________________________
Task 1
I got ____ out of 11
Task 2
I got _____out of 19
Class ___________
Task 3
I got ______ out of 29
Overall I got _________ out of 59
To improve I need to: (tick box)
 Try harder to label an animal and plant cell fully
 Try harder to research the functions of the different parts of cells
 Find out how a microscope is useful
 Understand what is meant by ‘scaling’ when using a microscope
 Describe how and why cells may be specialized to carry out certain functions
Teacher Comment:
WWW
EBI
Think about
You have received __________ vivos!!!!
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