year 12 biology summer work 2021 dear biologist, current

Year 12 Biology Summer Work 2021

Dear Biologist,

Having studied Biology for the last two or three years it must be frustrating for some of you to not

have had the opportunity to sit your GCSE this year. Your preparations for the GCSE will not have been

in vain as you will see that GCSE Biology leads on nicely to A level Biology. Below is a brief outline of

the topics covered in your first and second years. Task 1 of your summer work tests you on your

current knowledge and helps to identify which areas we may need to spend more time on when we

get to the relevant topic.

Assessment PAGS / Practical

2.1.1 Cell structure Light microscopes and graticules PAG 1.2 Light microscope red blood cells

2.1.2 Biological

molecules

PAG 9.1 Qualitative protein PAG 9.2 Qualitative lipids PAG 9.3 Qualitative glucose PAG 5.2 Determining glucose concentration (calibration curve)

2.1.3 Nucleotides and

nucleic acids

PAG 10.1 DNA and RASmol

2.1.4 Enzymes

PAG 4.1 Enzymes and substrate conc. PAG 4.2 Enzymes conc. PAG 4.3 Temperature and amylase

2.1.5 Biological

membranes

PAG 5.1 Temperature and membranes PAG 8.1 Water potential and potato PAG 8.2 Osmosis in artificial cell PAG 8.3 Rate of diffusion through a membrane

2.1.6 Cell division

PAG 1.1 Light microscope to look at mitosis in root tip Prepared slides for drawing and measurement Rat dissection

3.1.1 Exchange

surfaces

PAG 1.3 Light microscope to look at lung tissue Spirometer traces Observation of living locusts

3.1.2 Transport in

Animals

PAG 2.1 Dissection of heart PAG 11.2 Heart rate of daphnia? PAG 11.1 Effect of exercise on pulse rate (paired t-test)

3.1.3 Transport in

plants

PAG 2.2 Dissection of a stem (2 x double) PAG 5.3 Potometer (2 x double)

4.1.1 Communicable

diseases

PAG 7.1 effects of antibiotics

4.2.1 Biodiversity

3.1 Species diversity 3.2 Distribution and abundance (FIELD STUDIES DAY + 2 doubles) 3.3 Correlation between spp and factor (FIELD STUDIES DAY) – Spearmans rank

4.2.2 Classification

and evolution


Assessment PAGS / Practical

5.1.1 Communication

and Homeostasis

5.1.2 Excretion

Kidney dissection/ kidney slides (graticules used to measure glomerulus) PAG2/PAG1 Mock urine (revisit bio molecules tests) Liver slides

5.1.3. Neuronal

communication

Include muscle etc from 5.1.5 PAG 2.3 Chicken wing dissection

5.1.4 Hormonal

communication

Pancreas microscopy (prepared slides) – measuring islets of langerhan PAG 11 Effect of adrenalin on pulse rate (paired t-test)

5.1.5 Plant and

animal responses

PAG 11.3 Phototropism coleoptile

5.2.1 Photosynthesis

PAG 12.3 Research photosynthesis PAG 6.3 Photosynthetic pigments chromatography DCPIP demo

5.2.2 Respiration PAG 12.1 Research respiration Respirometers

6.1.1 Cellular control

6.1.2 Patterns of

inheritance

PAG 12.2 Fruit flies genetic crosses

6.1.3 Manipulating

genomes

6.2.1 Cloning and

biotechnology

Sanger sequencing kit PAG 7.2 Dilution plating population density PAG 7.3 GFP bacterial transformation (Portsmouth Uni?) Immobilised lactose PAG 10.3 pH change during yoghurt production

6.3.1 Ecosystems

6.3.2 Populations and

sustainability

As you can see in the table above we spend a lot of lessons helping you to gain practical skills in

preparation for further studies at university or for future careers.

Ten percent of the A level also assesses your mathematical ability and this sometimes surprises

students choosing A level Biology. Task 2 gives you an idea of the type of questions that you will be

covering at A level. It helps us to identify how confident you are when handling data.


Included in your summer work are two main tasks.

Task 1 – multiple choice quiz testing your knowledge on the content taught at

GCSE.

This is mainly to assess which areas of the course we may be able to cover fairly quickly and which

areas we may have to spend a little longer on. The quiz will take approximately 1 hour and is 42

questions long, you will need a calculator for some of the questions.

You may use the multiple choice quiz sent with this document and record your answers with an (x) in

the appropriate box on the separate answer sheet. Should you do this you will need to print off and

bring the completed answer sheets to the first lesson of the year.

or

log on to socrative (https://b.socrative.com/login/student/) and enter room white8738. Please

record your name by surname and then first letter of your first name. On socrative you will get instant

feedback. This may help you identify which areas of the GCSE you might want to spend extra time

going over before starting the A level course.

Task 2 – short answer questions testing your mathematical skills.

Complete the maths questions on the answer sheet

or

log on to socrative (https://b.socrative.com/login/student/) and enter room YR12BIOLOGYMATHS.

Task 3 – short paragraph testing your literacy skills.

Please hand write a paragraph outlining the aspect of biology that you are most looking forward to

studying at A level and why you enjoy this topic. Please bring your written answer to your first lesson

of Biology.

Please do not hesitate to email me any questions should you get stuck! We look forward to hopefully

seeing you in September.

Mrs White

[email protected]

https://b.socrative.com/login/student/

https://b.socrative.com/login/student/

mailto:[email protected]

Year 12 Biology Summer Work Question Sheet

You are not expected to write your answers on this sheet but on the answer grid.

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Year 12 Biology Summer Work Answer Sheet Name:

Task 1 – knowledge test (you may answer this on socrative instead)

Question A B C D

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TOTAL

Task 2 – Maths answer sheet.

1 Numbers and units

Question

1.1 Numbers and units

Answer

1 A burger contains 4 500 000 J of energy. Write this in:

kilojoules

2 A burger contains 4 500 000 J of energy. Write this in:

megajoules.

3 HIV is a virus with a diameter of between 9.0×10

−8 m and 1.20×10

−7 m.

Write this range in nanometres.

1.2 Powers and indices Answer

4 Calculate the following value. Give your answers using indices.

107

×102

×103

5 Calculate the following value. Give your answers using indices.

102 −10

−2

6 Calculate the following values. Give your answers with and without using indices.

103

÷106

7 Calculate the following values. Give your answers with and without using indices.

1002

÷102

Question

1.3 Converting units

Answer

8 Calculate the following conversions:

0.004 m into mm


130 000 ms into s


31.3 ml into μl

11 Give the following values in a different unit so they make more sense to the reader. Choose the final units yourself. (Hint: make the final number as close in magnitude to zero as you can. For example, you would convert 1000 m into 1 km.)

0.000 057 m


8 600 000 μl


68 000 ms

2 Decimals, standard form, and significant figures

Question

2.1 Decimal numbers Answer

14 New antibiotics are being tested. A student calculates the area of clear zones in Petri dishes in which the antibiotics have been used. List these in order from smallest to largest.

a. 0.0214 cm2

b. 0.03 cm2

c. 0.0218 cm2

0.034 cm2

15 A student measures the heights of a number of different plants. List these in order from smallest to largest. a. 22.003 cm b. 22.25 cm c. 12.901 cm d. 12.03 cm e. 22 cm

2.2 Standard form

16 Change the following values to standard form.

3060 kJ

17 Change the following values to standard form.

0.000 18 m

18 Give the following numbers in standard form.

0.01

19 Give the following numbers in standard form.

21 000 000

20 Give the following as decimals.

106


4.7×109


7.96×10−4

Question

2.3 Significant figures

Answer

23 Write the following numbers to i 2 s.f. and ii 3 s.f.

7644 g


4.3333 g


5.995×102

cm3

26 The average mass of oxygen produced by an oak tree is 11800 g per year.

Give this mass in standard form and quote your answer to 2 significant figures.

3 Working with formulae

Quest

ion 3.1 substituting into formula Answer

27 Calculate the magnification of a hair that has a width of 6.6 mm on a photograph. The hair is 165 μm wide.

28 Estimate the area of a leaf by treating it as a triangle with base 2 cm and height 9 cm.

29 Estimate the area of a cell by treating it as a circle with a diameter of 0.7 μm. . Give your answer in µm2.

3.2 Rearranging formula Answer

30 A fat cell is 0.1 mm in diameter. Calculate the size of the diameter seen through a microscope with a magnification of ×50.

31 A Petri dish shows a circular colony of bacteria with a cross-sectional area of 5.3 cm2 . Calculate the radius of this area.

Quest

ion 3.1 substituting into formula Answer

32 In a photograph, a red blood cell is 14.5 mm in diameter. The magnification stated on the image is ×2000. Calculate the real diameter of the red blood cell.

33 The cardiac output of a patient was found to be 2.5 dm

3 min

−1 and their heart

rate was 77bpm. Calculate the stroke volume of the patient.

Use the equation: cardiac output = stroke volume × heart rate.

4 Magnification

Quest

ion 4.1 Calculating the magnifying power of lenses Answer

34 Calculate the magnification of the virtual image produced by the following combinations of lenses:

a objective ×40 and eyepiece ×15

year 12 biology summer work 2021 dear biologist, current

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