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The Cell Cycle - Wins Site Licence Shipped in 7 days Cat.# MSB-5 $240.00 BUY

After completing these activities, students should:

• Define mitosis. 
• Explain the role and consequences of mitosis in living organisms. 
• Describe what is meant by a cell cycle. 
• State the activities of the cell in interphase. 
• Calculate phase times for a variety of cells. 
• Distinguish between chromosomes and chromatids. 
• Explain where in the cell cycle chromosome replication occurs.
• Define homologous chromosomes, diploid number and haploid number.
• Outline the process of karyotyping. 
• Describe the chromosome differences in four human karyotypes.
• Describe the events of prophase, metaphase, anaphase and telophase in mitosis.
• Explain the role of the spindle. 
• Distinguish between chromatids and daughter chromosomes. 
• State the relative percentage of time spent in each mitotic phase. 
• Recognize the appearance of chromosomes at different phases of the cell cycle and recall their sequence. 
• Explain how cell counts from a root meristem can be displayed graphically. 
• Calculate phase times for a variety of cells. 

An animation of a close-up of a nucleus shows a chromosome replicating into two sister chromatids. Homologous pairs of chromosomes from a human male are then investigated, with some chromosomes being paired interactively. Some alternative chromosomes are presented and these can be used to produce three other human karyotypes.

Lesson: Mitosis
The process of mitosis is explored through an animation showing prophase, metaphase, anaphase, telophase and cytokinesis in a typical animal cell. An interactive exercise follows, the aim of which is to match seven diagrams of the cell cycle with the appropriate stage name and statement describing the stage events.

Cells from an onion root tip allow the number of cells in the various phases of mitosis and interphase to be counted, and the changes in these cells over four-hourly intervals can be viewed. The total cell cycle times of five different cells are then presented along with an interactive exercise enabling the calculation of phase times for the different cells to be carried out.

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Differences and Specializations in Cells Single User Shipped in 7 days Cat.# CYB-10 $ 90.00   BUY 10 User Network Shipped in 7 days Cat.# CYB-10N1 $180.00 Wins BUY     Mac BUY Site Licence Shipped in 7 days Cat.# CYB-10SL $440.00 Wins BUY     Mac BUY

Investigate cell differentiation and specialization. Find out how plant and animal cells get energy and what the central vacuoles, cell walls and chloroplasts do for plant cells.

Learners will: 

• be able to construct or label general prokaryotic and eukaryotic cells given cell structures.
• be able to construct or label general animal and plant cells given cell structures.
• identify the importance of the cell wall, central vacuole, and chloroplast to plant cell survival, and be able to distinguish between each of them based on a description of their structures or functions.
• be able to determine whether a cell belongs to a unicellular or multi-cellular organism based on a description of a generalized or specialized function.
• identify that cells in a developing multi-cellular organism differentiate given options/decisions as to when this process occurs.

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Cells - Wins Site Licence Shipped in 7 days Cat.# MSB-3 $240.00 BUY

After completing these activities, students should:

• Identify and name the following parts of generalized eukaryotic cells, as seen using an electron microscope: ribosomes, rough and smooth endoplasmic reticulum, Golgi body, nucleus, chloroplasts, mitochondria, centrioles, lysosomes, vacuole and microtubules.
• Identify the key functions of each named organelle. 
• Compare the organelles and structures found in plant and animal cells. 
• Compare and contrast the ultra-structure of chloroplasts and mitochondria, and recognize the significance of the structural adaptations illustrated. 
• Recognize the principles of cell fractionation and differential centrifugation as methods by which cell organelles can be separated. 
• Recognize that cells can be either eukaryotic or prokaryotic. 
• Recognize the structural features common to all prokaryotic cells. 
• Recognize additional structures found in some prokaryotic cells. 
• Explain in outline the functions of these prokaryotic cell structures. 
• Compare prokaryotic cell structure with that of eukaryotic cells. 
• Recognize that specimens must be extremely thin as microscope images are formed when light is transmitted through them. 
• Explain that the images from a microscope are formed in the back of the eye and may be coloured if the specimen is stained. 
• Recognize the relationship between millimetres, micrometers and nanometers. 
• Calculate the magnification of an image when the real and image sizes are given, using appropriate units. 
• Calculate the real size of images when provided with the magnification, using appropriate units. 
• Explain the functions of an eyepiece graticule and stage micrometer. 
• Calibrate an eyepiece graticule for high and low power objective lenses, using a stage micrometer. 
• Use a calibrated eyepiece graticule to measure specimens viewed with a light microscope.  
• Explain the key features of a transmission electron microscope and a scanning electron microscope, how they function to produce images, and where the images are formed. 
• State why living and dead specimens can be viewed using a light microscope, whereas specimens viewed using electron microscopes are never living.
• Explain why the resolution obtained using electron microscopes is far greater than when using light, and that this enables much smaller objects to be enlarged and distinguished within the specimen, in very great detail. 
• Identify the main stages in the preparation of specimens for electron microscopy and contrast these with the way in which specimens are prepared for light microscopy.

Lesson: Prokaryotic Cells
These activities can be used to introduce the terms associated with prokaryotic cells in turn. The finer details of the differences between animal and plant cells, and prokaryotes and eukaryotes are approached visually so that comparisons can be made. Important terminology can be practiced via interactive diagrams and a quiz, which reinforce the learning points.

Lesson: Microscopes, Measurements & Magnification
These activities demonstrate the structure and uses of a light microscope. They allow students to manipulate the controls of a microscope, altering focus, calibrating and measuring specimens.

Lesson: Electron Microscopes
These interactive activities feature the structure and function of transmission and scanning electron microscopes, and can be used to demonstrate that specimens must be viewed in a vacuum, using an electron beam that is focused by electromagnetic lenses.

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Classifying Life Single User Shipped in 5 days Cat.# CYB-15 $ 90.00   BUY 10 User Network Shipped in 5 days Cat.# CYB-15N $180.00 Wins BUY     Mac BUY Site Licence Shipped in 5 days Cat.# CYB-15SL $440.00 Wins BUY     Mac BUY

Taxonomy is the science of naming and classifying organisms. Students will be introduced to the five and six kingdom classification schemes while learning the meaning of species through kingdom, gaining familiarity with branching diagrams, and practicing a dichotomous key.

Learners will:

• identify the function of historical classification methods for those classifying.
• choose correct scientific names for organisms given scientific names and common names in different regions/languages.
• identify appropriate questions for use in a dichotomous key.
• arrange organisms along a branching diagram based on similarities or differences in their characteristics.
• sort levels of the hierarchical classification system and arrange them from Kingdom to the Genus & species level.
• identify an organism given a dichotomous key.
• construct a simple classification key.

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Classification of Living Things Single User Shipped in 5 days Cat.# CYB-16 $140.00   BUY 5 User Lab Pack Shipped in 5 days Cat.# CYB-16LP $250.00 Wins BUY     Mac BUY Site Licence Shipped in 5 days Cat.# CYB-16SL $410.00 Wins BUY     Mac BUY

Follow the development of classification from its use among early humans to the latest cutting edge theories about how living organisms should be organized.

Classification of Living Things immerses students in the dynamic study of taxonomy, highlighting the importance of this central field of biology and showing how new ideas and new technology lead to the refinement of classification schemes.

Students learn about the hierarchical classification scheme and binomial nomenclature, as well as other aspects of classification. Compelling interactive lessons give students hands-on experience in constructing cladograms and classifying organisms using dichotomous keys.