General Certificate of Secondary Education Foundation: Unit Biology B2 Written Paper

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Centre Number Surname Other Names Candidate Signature

Candidate Number

For Examiner’s Use

Examiner’s Initials

Question

Mark

General Certificate of Secondary Education Foundation Tier January 2012

1 2 3 4 5 6 7 8

Additional Science
Unit Biology B2

BLY2F

Biology

Unit Biology B2 Written Paper Tuesday 24 January 2012
For this paper you must have:  a ruler. You may use a calculator.

F

9.00 am to 9.45 am

9 TOTAL

Time allowed  45 minutes Instructions  Use black ink or black ball-point pen.  Fill in the boxes at the top of this page.  Answer all questions.  You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages.  Do all rough work in this book. Cross through any work you do not want to be marked. Information  The marks for questions are shown in brackets.  The maximum mark for this paper is 45.  You are expected to use a calculator where appropriate.  You are reminded of the need for good English and clear presentation in your answers. Advice  In all calculations, show clearly how you work out your answer.

(Jan12BLY2F01)

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6/6/6

BLY2F

2 There are no questions printed on this page

Do not write outside the box

DO NOT WRITE ON THIS PAGE ANSWER IN THE SPACES PROVIDED

(02)

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3 Answer all questions in the spaces provided.

Do not write outside the box

1

The diagrams show four cells, A, B, C and D.

A Mitochondrion

B

Chloroplast

C

D Cell membrane Nucleus

Use letters A, B, C or D to answer these questions. 1 (a) Which cell can photosynthesise? (1 mark) 1 (b) Which cell is adapted for receiving and sending information? (1 mark) 1 (c) Which cell is adapted to respire quickly? (1 mark)

____ 3

Turn over for the next question

Turn over 

(03)

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4 2 The photographs show four ways of farming.

Do not write outside the box

Growing wheat

Keeping sheep outside

Keeping pigs outside

Keeping pigs inside

The bar chart shows the amount of food produced from these four ways of farming.

4

3 Mass of food produced in tonnes per 2 hectare per year 1

0 Growing wheat Keeping Keeping Keeping sheep pigs pigs inside outside outside Way of farming

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5 2 (a) How much extra food can be produced when farmers grow wheat, compared with keeping sheep outside? Show clearly how you work out your answer. ............................................................................................................................................ ............................................................................................................................................ Answer ........................................ tonnes per hectare per year (2 marks) 2 (b) Sheep eat grass. For every 1000 g of grass eaten, a sheep increases in mass by only 50 g. The other 950 g is lost. How is the other 950 g lost? Tick () two boxes. As oxygen from photosynthesis

Do not write outside the box

As faeces

As meat

As carbon dioxide from respiration (2 marks) 2 (c) (i) Pigs kept inside lose less energy than pigs kept outside. Why? Tick () two boxes. Pigs kept inside are fed more.

Pigs kept inside are kept in small pens.

Pigs kept inside are kept warm in the winter.

Pigs kept inside are healthier. (2 marks) Question 2 continues on the next page Turn over 

(05)

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6 2 (c) (ii) Meat from pigs kept inside is usually cheaper than meat from pigs kept outside. Give one reason why. ............................................................................................................................................ ............................................................................................................................................ (1 mark)

Do not write outside the box

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(06)

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