Articles tagged as "Fertilisation and cell cycles"
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A-level set practicals - microscopy of root tip mitosis
An improved and simplified version of this well-known practical, designed specifically for use for the new A-level practical specifications.
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Using Spider Plants in the Lab
Spider plants are a useful, cheap and reliable resource for investigating topics including asexual reproduction and the role of plant hormones.
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Duckweed make excellent subjects for students to use to develop investigations.
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Floating garlic - growing roots
Here is a simple way of growing garlic roots for the root tip squash practical
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Diagram of a dissected flower with stamens and carpel, in this case a Brassica rapa (fast plant)
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The Structure of a Flowering Plant (Brassica rapa)
Diagram of a flowering plant, in this case a Brassica rapa ('fast plant') showing the root and shoot systems.
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Investigating mitosis in allium root tip squash
A protocol allowing students to see mitosis in action.
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Fast plants for finer science - an article from the Journal of Biological Education
An article introducing 'fast plants' (rapid-cycling brassicas) for use in the classroom.
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Student Sheet 1 - Planting instructions for rapid-cycling brassicas
'Fast plants', or rapid-cycling brassicas, are a fascinating way to look at all sorts of biology topics, including plant growth, tropisms, floral reproduction, pollination, embryonic development, and genetics. This student worksheet introduces how to plant the rapid-cycling brassicas.
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Student Sheet 4 - Pollen Tube Growth
The growth of pollen tubes makes a fascinating practical in the lab, and is easily observed under medium power of a microscope over the course of a double lesson. This resource includes full teaching and technical notes, together with guidance on which pollen grains to use at what time of year, a zip file of sample images and a student's worksheet.
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Student Sheet 5 - Investigating Seed Germination
A simple experiment to investigate the germination of seed under different conditions, by growing seeds upright in Petri dishes. It allows students to make quantitative measurements of root / shoot growth, length of root hairs, etc, as well as % germination. This technique can also be used for investigations into the effect of acid rain.
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Pollen and other Airborne Particles
Construct your own school pollen trap to isolate and identify the pollen and other airborne particles that contribute to respiratory illness
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Protoplasts (cells which have had their cell wall removed) can be isolated from a range of plant tissues. This resource introduces protoplasts and gives a technique for isolating them.
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'Fast Plants' - Rapid-Cycling Brassica Kits
Kits for 'fast plants' - follow the complete life-cycle of these fast plants in only half a term!