Download Cells - WGHS Junior Science

LIVING WORLD – CLASSIFICATION & CELLS
Electronic Science LabBook
Designed by MSO
When you are required to put an answer in this booklet, the point at which you start typing is
marked with a red X. Your typed answer should also appear in red. Delete the X leaving just your
answer.
If you are required to paste or draw something, this is stated in BLUE. You can then photograph
your work and paste it into this LabBook. In many experiments and investigations, you will be
asked to photograph or video the experiment. You should insert these in the appropriate place in
this LabBook.
When you are asked to look at a website for information to write an answer don’t just cut and
paste the information in. Read the information and write an answer in YOUR OWN WORDS. You
may wish to discuss your answer with your classmates and teacher first to make sure you
understand it correctly.
For additional work (e.g. homework, revision) you will use the following books. You will be told
which pages to use.
SciPad A
Science World 9 textbook (written as SW9) – pages 80-101
Learning outcomes for this topic
Classification
Distinguish between living and non-living things
Describe the life functions that organisms carry out
Describe how the classification system works
Define a species and explain how a species is named
Know that living things are classified into five kingdoms
Place plants and animals in the correct groups
Describe functional and structural characteristics of the plant and animal kingdoms
Be able to use and interpret a key
Cells
Describe the building blocks of living organisms
Explain the function of cell structures
Distinguish between plant and animal cells
Identify parts of a microscope
Prepare microscope slides
Observe slides through a microscope
Describe organisation of cells into tissues, organs, organ systems, organisms
Explain the growth of an organism by cell division
Describe how cells are involved in reproduction
Classification

Distinguish between living and non-living things

Describe the life functions that organisms carry out
Task One
Write what these letters stand for
M: X
R: X
S: X
C: X
G: X
R: X
E: X
N: X
If living things perform these functions discuss whether fire, an egg, a shell and a wooden chair are
alive or not?
Then Complete SciPad pages 111 and 112
Paste pictures of living, dead and non-living things here
X

Describe how the classification system works

Define a species and explain how a species is named
Reference SW9 Pg 81-85
Classification is the process of grouping all living things into categories based on their physical
similarities and analysis of their DNA.
All living things can be subdivided into smaller and smaller groups ending in those called genus and
species. Your teacher will explain to you which groups you belong to!
Task Two
Write a definition of species: X
And
Google and write the biological, binomial (genus and
species) names for:
1.
2.
3.
4.
5.
6.
A polar bear: X
A lion: X
A kauri tree: X
A kiwi: X
The bacteria that causes acne: X
A humpback whale: X

Know that living things are classified into five kingdoms
Reference SW9 Pg 84-85
Task Three
List the Five kingdoms of Living Things: X
and
Complete SciPad p.152
Task Four
At home Watch the Clickview in Science : “Classification Systems”… then
Research the Kingdom assigned to you in class and prepare a digital presentation of that
Kingdom’s main features and examples for your class.

Place plants and animals in the correct groups

Describe functional and structural characteristics of the plant and animal kingdoms
Reference SW9 Pg 95-100
Task Five
The Animal and Plant Kingdoms are the most familiar to you. Each is divided into easily recognised
groups which are well described in your textbook.
Choose and paste pictures of examples from each of the Plant and Animal Groups. State which
groups they belong to and use their biological names.
X
Complete SciPad exercises on pp. 113 and 114 and pp. 154 to 156

Be able to use and interpret a key
Reference SW9 Pg 82-83
Task Six
Keys are guides to classifying organisms. Each one is a series of questions that lead you to a final
answer. Try the “dichotomous keys” on this site.
http://www.biologycorner.com/lesson-plans/evolution-taxonomy/
And complete Sci Pad 157 and 158.
Cells

Describe the building blocks of living organisms
Reference SW9 Pg 104-105
Cells are the basic units of life. All the functions of Living Organisms (that you learned in the
previous section) happen because the cells inside them are alive and functional.
Although all cells share some features in common, there is in fact no such thing as a “general” cell.
Each is specialised to a particular role in the whole organism. e.g. nerve cells are long and thin to
carry nerve messages around the body ( a bit like electrical wiring) and muscle cells can contract
and relax so you can move.
Task One
Visit www.cellsalive.com and click on the interactive “How big is a cell” exercise.
Look at some pictures of specialised cells on this site.
Then search images of many different kinds of plant and animal cells. Paste and label them here
X
Save some in google drive, your edmodo group or similar so that you can share them
Reference SW9 Pg 108.
Cells are made of smaller parts. Just as you are made of the organs inside you, the tiny cell
structures that make up the cell are called organelles.
Below are images of the organelles that all cells have in common.
Plant Cells have some extra ones that Animal cells lack.
List organelles that a Plant cell has that an Animal cell do not have:
X
Task Two
Complete SciPad page116

Explain the function of basic cell structures

Distinguish between plant and animal cells
Animal and plant cells
Function of organelles found in animal cells AND plant cells
Nucleus: X
Cytoplasm: X
Cell membrane: X
Plant cells also have organelles found ONLY in Plant cells:
Cell wall: X
Chloroplasts: X
Permanent vacuole: X
Task 3
Create a colourful poster - using your devices – of a plant cell. Annotate each label of an organelle
with a brief outline of its function. (Use the above functions as a guide only. There is more
explanation in your textbook).

Identify parts of a microscope

Prepare microscope slides

Observe cells through a microscope
Reference SW9 Pg 106-107
Task 4
Complete Scipad pages 118-121
Take photos of each step of your slide preparation and insert here
X

Cells are organised in all living organisms.

Describe organisation of cells into tissues, organs, organ systems and organisms
Task Five
Read the information in your text book page 110.
Construct a visual display of images of muscle cells, muscle tissue, muscles and musculoskeletal
organs that make up the movement system in a human.

Explain the growth of an organism by cell division
Cells must be replaced after injury or to make new cells for growth. Each cell has the ability to
replicate its organelles and then form TWO new identical cells, in a process called MITOSIS.
Task Six
Watch the mitosis animation on www.cellsalive.com
Where, in a plant or animal, would you expect to find many cells undergoing Mitosis at the same
time?
Answer X

Describe how cells are involved in reproduction
Reference SW9 Pg 112-116
Some organisms are made of only one cell – unicellular. These organisms use Mitosis to
reproduce identical copies of themselves. This is called ASEXUAL REPRODUCTION
Paste in a picture showing this happening in a unicellular organism
X
Task Seven
Go to http://www.sciencekids.co.nz/videos/biology/bacteria.html
Plants such as strawberry plants also use reproduce asexually - cells in the stems undergo Mitosis
and grow sideways stems (runners) which can grow into new plants. As with all asexual
reproduction the new plants are identical to the single parent plant.
SEXUAL REPRODUCTION
This involves specialised male and female cells: sperm and
egg in animals and pollen and ova in plants. The purpose is
to produce one cell which has DNA from both of the original
parent cells, so that this new cell can then grow into a new
organism that is different from its parents.