Chromosome and Question

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Edexcel International GCSE

Centre Number

Candidate Number

Biology
Unit: 4BI0 Science (Double Award) 4SC0 Paper: 1B
Monday 9 January 2012 – Morning Time: 2 hours
You must have: Ruler Calculator
Paper Reference

4BI0/1B 4SC0/1B
Total Marks

Instructions
Use black ink or ball-point pen. Fill in the boxes at the top of this page with your name, centre number and candidate number. Answer all questions. Answer the questions in the spaces provided – there may be more space than you need. Show all the steps in any calculations and state the units.

Information
The total mark for this paper is 120. The marks for each question are shown in brackets – use this as a guide as to how much time to spend on each question.

Advice
Read each question carefully before you start to answer it. Keep an eye on the time. Write your answers neatly and in good English. Try to answer every question. Check your answers if you have time at the end.

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P40124A
©2012 Pearson Education Ltd.

*P40124A0128*

1/1/1/

Answer ALL questions. 1 The following organisms can be classified into major groups.

Amoeba

Lactobacillus

bean

Mucor

mosquito

(a) From the list above give the name of (4) (i) a bacterium (ii) a fungus (iii) a flowering plant (iv) an animal . . . . ...........................................................................................................................

. . . . ...........................................................................................................................

. . . . ...........................................................................................................................

. . . . ...........................................................................................................................

(b) Viruses are not included in most classification systems. (i) Give three ways in which viruses differ from other living organisms. (3) 1 . . . . . . . ................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ............................................................................................................................................ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ........................................................................................................................................... . . . . . . . . . . . . . . . . . . . . . .

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