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Bioscience Rocks

Bioscience Rocks is a shop that specialises in resources for A-Level Biology and Applied Science students. The resources include a range of activities, starters, worksheets and powerpoints, all of which have been used successfully with students of a wide range of abilities. The author is a National Expert Teacher of Science (awarded by National Science Learning Centre) and also a National Space Academy Lead Educator with a long track record of producing high quality educational resources.

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Bioscience Rocks is a shop that specialises in resources for A-Level Biology and Applied Science students. The resources include a range of activities, starters, worksheets and powerpoints, all of which have been used successfully with students of a wide range of abilities. The author is a National Expert Teacher of Science (awarded by National Science Learning Centre) and also a National Space Academy Lead Educator with a long track record of producing high quality educational resources.
On the hunt for stem cells!
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On the hunt for stem cells!

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An activity aimed at GCSE biology (age 14-16) students on the topic of stem cells. The activity includes a powerpoint presentation and a questionnaire word document. The powerpoint can be printed out on separate sheets of A4 and posted around the classroom for students to find - each slide has a suitable image together with clear explanatory text. The questionnaire matches the slides and so students can then match the answer to the relevant question. In terms of delivery, students can be paired up after they complete the activity and asked to verbally test each other on their knowledge of stem cells, checking that the information gathered has been understood. This can then lead into a whole class teacher-led discussion using the powerpoint slides to summarise the topic and check responses to each question. The activity includes coverage of the nature of stem cells, embryonic versus adult stem cells, IVF, uses of stem cells, ethical issues, tissue culture and medical treatments that are possible using stem cell therapy.
The Nerve Impulse - a step by step interactive worksheet
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The Nerve Impulse - a step by step interactive worksheet

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A comprehensive six page worksheet aimed at advanced biology students, this resource deals with all the major aspects of how a nerve impulse originates and is propagated along a neurone. The worksheets include diagrams that show the different open and closed positions of sodium and potassium channels with space for students to show their own positions of the relevant ions (this is with reference to an online animation - weblink included on the worksheet). The worksheet also has a labelling exercise for the classic action potential graph as well as details on saltatory conductance and factors affecting speed of impulse transmission. Key words: nerve, neurone, depolarisation, repolarisation, refractory period, action potential, resting potential, sodium, potassium, diffusion, ATP, ATPase pump
Quiz on meiosis
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Quiz on meiosis

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A resource aimed at advanced level biology students, this resource provides fifteen questions which require students to respond with the appropriate term relating to their understanding of meiosis. Useful as a starter or plenary exercise to consolidate understanding. Key words: meiosis, mitosis, diploid, haploid, homologous, chromosomes, cells, gametes
Modelling cell division
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Modelling cell division

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A resource aimed at GCSE (14-16) biology students, this activity requires students to construct a model of cells at different stages of division in order to learn how chromosomes behave during mitosis. The worksheet includes images of cells at different stages of division to assist students and also some questions that should be completed at each stage of the process.
The Phosphorous Cycle - Draw It!
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The Phosphorous Cycle - Draw It!

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An activity aimed at A-Level Biology students. This activity involves a series of statements that can be given to a class at the start of a lesson with the instruction that they draw the phosphorous cycle based on this information. Students should initially do this in pairs but can then be teamed up in larger groups to show, discuss and explain their own diagrammatic interpretations of the phosphorus cycle. Finally, the whole class can be brought together to discuss the best way of joining these statements together into an agreed phosphorous cycle. Key words: Phosphorous, cycle, ATP, NADP, weathering, phosphates, fertilisers, glycolysis, kinase, phosphorylation
Amino acids
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Amino acids

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Worksheet starter task to recap the basics of amino acid structure
Enzyme inhibitors starter/plenary
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Enzyme inhibitors starter/plenary

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A worksheet that can serve as either a starter or plenary review of competitive and non-competitive inhibitors. The worksheet ends with a review of end-product inhibition - often missed by students when they revise this topic. Key words: enzyme, inhibitor, active site, competitive, non-competitive, end-product To view more resources: https://www.tes.com/teaching-resources/shop/cmrcarr
Calculating statistical significance; effect of caffeine on heart rate of Daphnia
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Calculating statistical significance; effect of caffeine on heart rate of Daphnia

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A worksheet that is aimed at A-Level Biology students, providing data from an investigation into the effect of caffeine on the heart rate of Daphnia. Students are required to use the 95% confidence limits and standard error test to determine whether the results are statistically significant or not. Key words: Statistics, Daphnia, heart rate, caffeine, 95% confidence limits, standard error, standard deviation, significance, null hypothesis
Osmosis starter worksheet
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Osmosis starter worksheet

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A resource aimed at GCSE (14-16 year old) biology students, this worksheet consists of nine questions that probe understanding of the process of osmosis. This resource is ideal to use as a starter activity following the classic practical investigation into how different concentrations of salt or sugar solution affect the mass of a potato chip. Key words: osmosis, mass, percentage change, water, concentration
Using quadrats to estimate population size of plant species
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Using quadrats to estimate population size of plant species

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A worksheet that provides secondary data from an investigation into the population density/abundance of plant species in a field. The worksheet requires some calculations to estimate population density and total population size across the whole field. There is also consideration of the reasons why quadrats are always deployed randomly and why random sampling is required for any fieldwork investigation. Key words: quadrat, fieldwork, dandelions, daisies. estimate, population, density, abundance, calculations
Codominance questions
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Codominance questions

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A worksheet aimed at advanced biology students, this resource consists of eight questions that focus on both multiple alleles and codominance. The examples chosen include fur colour in cats, hair colour in cattle and the appearance of the (fictional) American Bigfoot! A good resource to use as either a starter or plenary exercise to test understanding of either codominance or multiple alleles and phenotypic ratios. Key words: genetics, phenotype, codominance, multiple alleles, monohybrid
Calculating magnification, diagram size and real size
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Calculating magnification, diagram size and real size

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A worksheet aimed at advanced biology students, this resource contains a number of exercises that require students to make measurements from diagrams and calculate magnification. The exercises also require changing the subject of the magnification formula to work out real size of cells and using a scale bar to calculate magnification. Finally. there are questions about the nature of magnification and resolution and the electron microscope.
Dihybrid cross questions with modified ratios
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Dihybrid cross questions with modified ratios

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A resource aimed at advanced biology students, this worksheet provides some more unusual examples of dihybrid cross genetics including malvidin production in primrose, kernel colour in wheat and fruit colour in squash; all students will be aware of the classic 9:3:3:1 ratio, but they can often struggle when other factors such as codominance are included in the question. This resource is ideal stretch and challenge material for more able students once they have mastered the basics of the dihybrid cross. It is also ideal preparation for the more challenging questions on this topic favoured by most exam boards. Keywords: dihybrid, ratio, cross, genetics
Agonists and antagonists - predicting the effect of drugs on the autonomic nervous system
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Agonists and antagonists - predicting the effect of drugs on the autonomic nervous system

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A worksheet aimed at advanced level biology students, this resource focuses on the mechanism of action of agonists and antagonists. The worksheet includes a diagram and explanation of how agonists and antagonists work, followed by some examples of common drugs and chemicals that can act as agonists or antagonists of the autonomic nervous system. A diagram of the parasympathetic and sympathetic branches of the autonomic nervous system is included and is required for the final page of the worksheet - a series of questions that asks students to predict the effect of various drugs and poisons (e.g. beta blockers, muscarine, atropine, etc). This is a good activity for making the link between theory and practice; most students really enjoy being able to predict the action of a drug from a simple understanding of its mechanism. A second, shorter worksheet is also included on the same topic which could be used as a revision activity once the key concepts have been taught. Key words: agonist, anatgonist, sympathetic, parasympathetic, sympathetic, autonomic, muscarine, beta blockers, atropine, noradrenaline, acetylcholine, sarin
Testing for reducing and non-reducing sugars
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Testing for reducing and non-reducing sugars

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A single page method sheet for carrying out the reducing sugar and non-reducing sugar test. This resource would be suitable as a concise guide to the these biochemical tests and is aimed at Advanced Level biology students or BTEC Level 3 students.
Lung disorders and disease - Fick's Law
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Lung disorders and disease - Fick's Law

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This resource is aimed at A-Level Biology students and lists the mechanisms behind each of four different lung diseases and disorders: asthma, tuberculosis, pulmonary fibrosis and emphysema. As well as being a useful collection of revision notes in itself, the task here is for students to explain how each of these diseases causes a reduced tolerance to exercise - this is often asked in exam questions and requires students to apply their knowledge of Fick's Law. Each disease will impact on surface area, concentration gradient and/or thickness of exchange surface thereby reducing the rate of diffusion; the challenge is for students to explain this
Enzymes research
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Enzymes research

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A worksheet to be used as an introduction to enzymes. The weblinks at the bottom of the worksheet link this topic to the some of the neurotoxins and haemolytic toxins found in snake venom - an engaging context to spark the interest of learners.
Extraction of chlorophyll from leaves and analysis through chromatography - a practical schedule
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Extraction of chlorophyll from leaves and analysis through chromatography - a practical schedule

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A resource aimed at advanced biology students, this worksheet provides a written schedule for the extraction of chlorophyll from leaves followed by analysis via chromatography. Rf values for various pigments are included in a reference table (including chlorophyll a, chlorophyll b, phaeophytin, xanthophyll and carotene); students can attach their chromatograms to the worksheet, calculate Rf values for each pigment and identify using the reference table. This is a good practical exercise to cover at the start of a topic on photosynthesis, and emphasises the fact that various pigments are responsible for harnessing light energy during the light dependent reactions. Key words: Light dependent, chlorophyll, Rf value, chromatography, chromatogram, solvent front, extraction, leaf, phaeophytin, xanthophyll, carotene, absorption spectra, action spectrum
Osmosis - calculating water potential and predicting water movement into and out of cells
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Osmosis - calculating water potential and predicting water movement into and out of cells

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A worksheet aimed at advanced level biology students, this resource has a series of questions that require students to calculate water potential values in order to predict the direction of water movement between different cells. The worksheet also has diagrams of both animal cells and plant cells showing water movement in, out and no net movement - students are required to match each diagram to the circumstance that would cause each effect. A useful worksheet to review understanding of the key ideas involved with osmosis
Units of measurement and calculating magnification, real size and diagram size
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Units of measurement and calculating magnification, real size and diagram size

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A collection of four worksheets aimed at advanced biology students. The first two worksheets require students to suggest appropriate units of measurements for typical investigations and then introduce the idea of converting between millimetres, micrometres and nanometres - an important skill that is required on most exam papers. The last two worksheets require students to practise their skills in making measurements and calculating magnification of cell images and diagrams, including the use of a scale bar.