A level Biology Summer Holiday Work
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1 A level Biology Summer Holiday Work In order to succeed at A level Biology you will require a solid foundation in GCSE Chemistry and Maths as well as Biology. The first 3 sections are designed to help you remember and consolidate the key GCSE knowledge that you will need from each subject The final section is an opportunity for you to investigate the most fundamental unit in biology - the cell - in far more detail than you ever did at GCSE. A few other thingswe use the OCR Biology A textbook for homework and coursework. In September every student will be expected to purchase a copy for themselves, you may want to beat the rush and buy yours online before the new term starts: A level Biology for OCR - Ann Fullick We also recommend that you read extensively around the subject throughout your time at Hayesfield, the following books would be a good place to start: The wasp that brainwashed the caterpillar - Matt Simon Bad science - Ben Goldacre The man who mistook his wife for a hat - Oliver Sacks The double helix - James Watson Give it your best shot and we re looking forward to meeting you and hearing what you ve found out in September. Mr Fuller, Mr White and Mr Robinson
2 Biology 1. Explain how you would test for the following molecule and what a positive test result would look like a. Sugars b. Starch c. Protein d. Lipid 2. Complete the table on well-known enzymes and their reactions Enzyme Substrate Products Amylase Protease Lipase 3. In the box below draw a labelled diagram to show enzyme action 4. In the box below draw and label an animal cell 5. In the box below draw a labelled diagram of a mammalian heart
3 Chemistry 1. State the chemical symbols for the following molecules: a. Water b. Oxygen c. Carbon dioxide d. Nitrogen e. Glucose f. Nitrate 2. How many chemical bonds can the following elements form? a. Carbon b. Hydrogen c. Oxygen d. Nitrogen 3. Explain what a polymer is 4. Describe the structure of the following polymers and name the monomers they are made from: a. DNA b. Starch c. Proteins d. Cellulose
4 Maths (1) A newspaper reported that: Food security is a serious problem in remote communities in Canada. This is because Aboriginal communities are eating fewer traditional foods. One traditional food eaten by Aboriginal communities in Canada is seal. Look at the table below Year Number of seals caught in thousands Calculate the percentage (%) decrease in the number of seals caught from 2004 to Decrease in seals = % (2) Q1. A student investigated the effect of different sugar solutions on potato tissue. The table below shows the results. Concentration of sugar solution in mol dm 3 Starting mass in g Final mass in g Change of mass in g Percentage (%) change X (a) Calculate the value of X in the table above. Percentage change in mass = % (2)
5 (c) Complete the graph using data from the table above. Choose a suitable scale and label for the x-axis. Plot the percentage (%) change in mass. Draw a line of best fit. (4) (d) Use your graph to estimate the concentration of the solution inside the potato cells. Concentration = mol dm 3 (1)
6 Investigating cell organelles Eukaryotic (animal, plant and fungi cells) have many more organelles (structures) than you discovered at GCSE. Your task is to research one of them and produce a one minute presentation with one powerpoint slide. You can either bring your PowerPoint slide on a USB stick or preferably you can it to c.fuller@hayesfield.com Suggested organelles include (but are not limited to): Nucleus Ribosome Mitochondria Chloroplast Smooth endoplasmic reticulum Rough endoplasmic reticulum Golgi Centriole Stuck with your presentation? Follow these success criteria: Include the following ideas - structure, function, size, location (which cell types) Make sure you understand what you are talking about, don t just copy facts down Make sure your Powerpoint is only one slide Include plenty of diagrams (that you fully understand) Just include key facts on the board, don t juts present a wall of text Don t read from your slide (its fine to have a few notes to help you) Practice your presentation a couple of times with friends and family
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