OCR > A-Level Question Paper > OCR A Level Biology A H420/02 Biological diversity JUNE 2022 FINAL QUESTION PAPER. (All)

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OCR A Level Biology A H420/02 Biological diversity JUNE 2022 FINAL QUESTION PAPER.

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A Level Biology A H420/02 Biological diversity JUNE 2022 Time allowed: 2 hours 15 minutes INSTRUCTIONS • Use black ink. You can use an HB pencil, but ... only for graphs and diagrams. • Write your answer to each question in the space provided. If you need extra space use the lined pages at the end of this booklet. The question numbers must be clearly shown. • Answer all the questions. • Where appropriate, your answer should be supported with working. Marks might be given for using a correct method, even if your answer is wrong. INFORMATION • The total mark for this paper is 100. • The marks for each question are shown in brackets [ ]. • Quality of extended response will be assessed in questions marked with an asterisk (*). • This document has 32 pages. ADVICE • Read each question carefully before you start your answer. © OCR 2022 [601/4260/1] DC (CE/CB) 301349/5 OCR is an exempt Charity Turn over SECTION A You should spend a maximum of 20 minutes on this section. Write your answer to each question in the box provided. Answer all the questions. 1 Many processes in the body are controlled by enzymes. Which of the options is an extracellular process controlled by enzymes? A Conversion of fibrinogen to fibrin during blood clotting B Digestion of a pathogen inside a lysosome C DNA replication D Movement of vesicles from the Golgi apparatus to the cell membrane Your answer [1] 2 Many industrial processes use immobilised enzymes. Which of the options is not an advantage of using immobilised enzymes rather than free enzymes? A Enzymes can be reused. B Enzymes remain active over a wider range of temperatures. C Set-up costs are low. D The product is not contaminated by enzymes. Your answer [Show More]

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