Not exact matches
The abormally
shaped blood
cells clog the small vessels producing the
characteristic painful symptoms.
Depending on which device they buy, researchers can photograph
cells at anywhere from 20x to 60x magnification, and use the included software to sort them by purely visual
characteristics such as
shape and size, fluorescent markers, or both.
The result — the first complete structure of a virus in the flavivirus family — reveals a layered, soccer - ball - like
shape lacking the spiky projections
characteristic of many human viruses, the researchers report in the 8 March issue of
Cell.
(Bottom) Plotting the
characteristic ellipsoids for each
cell by how round they are in the two major cross sections reveals that
cells tend to different
shapes on different scaffolds — spheres at one extreme, long narrow rods at another.
They then used a mathematical technique — «gyration tensors» — to reduce each
cell's
shape to a
characteristic ellipsoid.
Year 6 Science Assessments and Tracking Objectives covered: Describe how living things are classified into broad groups according to common observable
characteristics and based on similarities and differences, including micro-organisms, plants and animals Give reasons for classifying plants and animals based on specific
characteristics Identify and name the main parts of the human circulatory system, and describe the functions of the heart, blood vessels and blood Recognise the impact of diet, exercise, drugs and lifestyle on the way their bodies function Describe the ways in which nutrients and water are transported within animals, including humans Recognise that living things have changed over time and that fossils provide information about living things that inhabited the Earth millions of years ago Recognise that living things produce offspring of the same kind, but normally offspring vary and are not identical to their parents Identify how animals and plants are adapted to suit their environment in different ways and that adaptation may lead to evolution Recognise that light appears to travel in straight lines Use the idea that light travels in straight lines to explain that objects are seen because they give out or reflect light into the eye Explain that we see things because light travels from light sources to our eyes or from light sources to objects and then to our eyes Use the idea that light travels in straight lines to explain why shadows have the same
shape as the objects that cast them Associate the brightness of a lamp or the volume of a buzzer with the number and voltage of
cells used in the circuit Compare and give reasons for variations in how components function, including the brightness of bulbs, the loudness of buzzers and the on / off position of switches Use recognised symbols when representing a simple circuit in a diagram