Pearson Edexcel A Level · Biology A (Salters-Nuffield) (9BN0)

Forensics: time of death and decomposition: Practice Questions

3 multiple-choice questions marked as you go, and 4 written questions with worked solutions. All on Forensics: time of death and decomposition.

7 questions16 marksFree, no account

Question 1

1 mark

Which of the following is a non-specific response of the body to an infection?

Question 2

1 mark

Which of the following statements correctly distinguishes between bacteriostatic and bactericidal antibiotics?

Question 3

1 mark

In the context of forensic entomology, which of the following best describes how the age of blowfly larvae can be used to determine the time of death of a mammal?

Question 4

2 marks

Describe the role of micro-organisms in the recycling of carbon during decomposition.

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Question 5

2 marks

State two structural differences between bacteria and viruses.

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Question 6

2 marks

Distinguish between bacteriostatic and bactericidal antibiotics.

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Question 7

7 marks

Topic 6: Immunity, Infection and Forensics<\/b>
Following death, a body undergoes a series of predictable changes that can be used by forensic pathologists to estimate the time of death.

(a) Explain how the stage of succession of insects (forensic entomology) found on a body can help determine the time of death.
(b) Describe the role of micro-organisms in the recycling of carbon from dead organic matter.
(c) In the context of the body\'s immune response, explain the difference between the roles of T helper cells and T killer cells.<\/p>

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