YR+8+Cells

headstart booklet 2015 just use the headstart booklet headstart test access code Y2JXG
 * Year 8 Cells **
 * @http://www.classroomclipboard.com/490625/Home/Test/263F9873193C412FA6948E3570CF6682 ||

=**Class notes**=


 * Headstart Year 8 Cells **** updated 14th November 2015 **

Discovery of cells Microscopes |||| ** Video ** 575.2 LIT Little Cell Big Picture Or Introducing Cells V574 INT Or The Magic of Cells V574.57 MAG []
 * ** Key Concepts ** ||  ||||   ||
 * # 1. Cell size & meet the Microscope
 * 1) 2. Examination of cells – multicellular & unicellular
 * 2) 3. Distinguishing between plant & animal cells
 * 3) 4. Identifying cell structures & understanding the functions |||| NAME: ||
 * || ** Science Quest **
 * // TEXTBOOK //** |||| ** SCIENCE Quest ****// PRACTICALS / ACTIVITIES //** || ** SCIENCE Quest **
 * // HOMEWORK //** || ** OTHER ACTIVITIES/RESOURCES ** ||
 * 1 || ** 3.1 A whole new world ** p 60-62
 * Web activity ** – parts of the microscope

Interactivities-Microscope Parts (int-0205)

http://www.youtube.com/watch?v=C66lpodO208

Cells rap https://www.youtube.com/watch?v=-zafJKbMPA8&feature=youtu.be || Cells Booklet page 1 & 2

__//** Download this from edmodo - ask your teacher for your class code. **//__ || ** Words to Learn ** Microscope, magnification, electron microscope, light microscope, nm, mm || Types of microscopes Microscope components Magnification |||| ** Investigation ** 3.1 p 66 Getting into focus Monocular, binocular, stereo, microbiologist, parts of the microscope || Size of cells, Cell types, Cell components Five Kingdoms |||| ** Textbook Questions ** : p 71 1-5,7,8,9,12 || Make a cell model Booklet page 7 || ** Words to Learn ** Unicellular, multicellular, nanotechnology, eukaryote, prokaryote, cell membrane, cytosol, ribosome, cytoplasm, organelles, metabolism, binary fission, mitochondria, chloroplast, cellular respiration, photosynthesis, nucleus, vacuole || Sketching cells, Preparing Slides Wet mounts, Staining specimens |||| ** Investigation ** 3.2 p 73 All in one cell Booklet page 8 - 9 || ** Words to Learn ** Specimen, coverslip, staining || Similarities and differences in animal cells |||| ** Textbook Ques ** : p 77 1-4,5ace,6 || Interactivities-Cell Jobs (int-0206) || ** Words to Learn ** Cilia, flagellum || Organelles/Cells/Tissues/Organs/Systems Stem cells |||| ** Textbook Ques ** : p 83 1-12
 * 2 || ** 3.2 Focusing on a small world ** p 63 – 67
 * Investigation ** Hay infusion Booklet page 6 || Cells Booklet page 2 – 6 || ** Words to Learn **
 * 3 || ** 3.3 Form & Function: Cell make-up ** p 68-71
 * 4 || ** 3.4 Zooming in on Life ** p 72 – 74
 * Investigation ** 3.4 p 74 Pond water
 * Investigation ** 3.5 p74 Peel, squash & stain
 * Textbook Ques ** : p 74 1,2 || Worksheet 3.3 p74
 * 5 || ** 3.5 Focus on animal cells ** p 75 -77
 * 6 || ** 3.6 Animal cells – made to order ** p 78 -83

Cell rap

http://www.youtube.com/watch?v=-zafJKbMPA8 ||  || ** Words to Learn ** Organelles, tissues, organs, systems Stem cells || Differences in plant cells |||| ** Investigation ** 3.7 p85 Plant cells in view Xylem, Phloem, Guard &Epidermal cells || Transport systems in plants |||| ** Investigation ** 3.9 p89 Observing leaf cells Worksheet 3.6 p91 || ** Words to Learn ** Translocation, Stomata, Transpiration Vascular bundles || Reproduction of cells/mitosis |||| ** Investigation ** 3.13 p94 Where are those germs? Chromosomes, Mitosis, Clones -Activity 3.1 (doc-6048) -Activity 3.2 (doc-6049)
 * 7 || ** 3.7 Focus on plant cells ** p 84 – 85
 * Textbook Ques ** : p 85 1-4,5ac,6 || Worksheet 3.4 p85 || ** Words to Learn **
 * 8 || ** 3.8 Plant Cells – holding, carrying & guarding ** p 86 – 91
 * Textbook Ques ** : p 91 1-10 || Worksheet 3.5 p91
 * 9 || ** 3.9 Cell Division **
 * Textbook Ques ** : p 95 1,3,4,6-11 ||  || ** Words to Learn **
 * eLesson ** p108**- A Cure** (eles-0070) ||
 * 10 || ** Review and Test ** |||| ** Study Checklist ** P108
 * eBook ** Individual Pathways p108
 * Looking Back ** p109-110 ||  ||   ||

=**Class notes**=
 * Complete the eLesson on whats inside a cell got to the JacPlus site or use the direct link in the course guide above.**
 * Hand in the completed worksheet**

Cells

Measurements of small objects.
Long distance are measured in kilometres (km) or metres (m). Smaller distances or lengths are measured in centimetres (cm 1/100 metres) or millimetres (mm 1/ 1000 metres). When measuring cells we use micrometres (um 1/1000000 metres) or nanometres. (nm 1 / 1000000000 metres). This means there are one thousand micrometres in a millimetre and one million nanometres in a millimetre.

On Low Power
The magnification was Ocular X Lens = 10 X 4 = 40X

The distance across the field of view in mm was 5mm

On Medium Power
The magnification was Ocular X Lens = 10 X 10 = 100X

The distance across the field of view in mm was 1.5 mm

On High Power
The magnification was Ocular X Lens = 10 X 40 = 400X

The distance across the field of view in mm was 0.25 mm

Measuring the size of a red blood cell
Focus the blood cell on medium power. Count the number of cells that fits across the Field of View. Divide the size of the medium power field of view by the number of cells.

I found that about 200 cells fitted across the medium power field of view. Therefore the size of one cell is 1.5/200 = 0.00075 mm

Onion cell slides

Do ques 1 to 5 p 141 HMWK activity 5.1 and 5.1

Water and nutrients are transported from the roots or leaves by specialised cells called xylem (water transport) and Phloem ( sugar and nutrient transport). Once the water arrives at the cell the water diffuses into the cell along with the nutrients. Waste products diffuse out.
 * Transport in Cells**

In plants there are different types of cells we say they are specialised. These cells perform a special function. Copy Fig 5.2.5, 5.2.6. 5.2.11 p 138
 * 1) In the leaf palisade cells contain many chloroplasts. The chloroplasts are the sites of photosynthesis.
 * 2) Another cell type is the guard cells. Their job is to let gas out and in to the leaf while preventing too much water loss due to transpiration.

The celery was cut longitudinally and one side placed into red dye the other side into blue dye.
 * Celery Demonstration**

We observed blue patches on the leaves of the celery the was in the blue dye and red on the other side.

This shows the water is travelling up special cells – xylem cells. We also saw distinct blue patches in the transverse section of the stem.

Ques 7,10,11,13,15,17, 19, p 141

//Animal Cells//
The structure of an animal cell is different to that of a plant cell. Animal cells do not have: This means that animal cells can have a wide range of shapes and sizes. Some examples include : blood cells, muscle cells, bone cells, nerve cells, oesophagus cells.
 * Cell walls
 * Large vacuoles
 * Chloroplasts

Exercise: Use the microscope to examine and then draw cells found in 3 different parts of our digestive system. Diagrams need to be labelled, in pencil, 10 lines big and have the cell sizes calculated.


 * Use your text book and online resources to find out**
 * 1) how viruses reproduce - a good answer will have an animation and you will be able to use the terms chromosomes and DNA, where on or in the host cell they reproduce, how do we use them?
 * 2) how bacteria reproduce - a good answer will have an animation and you will be able to use the terms chromosomes and DNA, binary fission, asexual reproduction, sexual reproduction. Where on or in the host cell they reproduce, how do we use them?
 * 3) You will be teaching the rest of the class about what you have learnt. You will need to consider
 * what are the main things you want them to know
 * How will you know they have understood
 * how will you relate what you are teaching them to their lives?