A Level Biology B H422/01 Question Paper 2021

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Monday 11 October 2021 – Morning A Level Biology B (Advancing Biology) H422/01 Fundamentals of biology Time allowed: 2 hours 15 minute 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 110. • 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 40 pages. ADVICE • Read each question carefully before you start your answer. *H42201* You can use: • a ruler (cm/mm) • a scientific or graphical calculator Monday 11 October 2021 – Morning A Level Biology B (Advancing Biology) H422/01 Fundamentals of biology Time allowed: 2 hours 15 minutes 2 © OCR 2021 SECTION A You should spend a maximum of 40 minutes on this section. Write your answer for each question in the box provided. Answer all the questions. 1 Mammals have mass transport systems to move substances around the body. Which feature of mammals, A to D, explains why they need mass transport systems? A low metabolic rates B large surface area to volume ratios C short diffusion distances D small surface area to volume ratios Your answer [1] 2 Which of the biofluids, A to D, is not an extracellular fluid? A cell sap B lymph C plasma D urine Your answe [Show More]

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