OCR 2023 Biology A H020/02: Depth in biology AS Level Question Paper & Mark Scheme (Merged)
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Course
Biology
Institution
Biology
1 (a) Fig. 1.1 shows two cubes that represent a large and a small multicellular plant.
Fig. 1.1
Large multicellular
plant
Small multicellular
plant
Length = 2cm
Width = 2 cm
Depth = 2cm
Surface area : volume
= 6:1
(i) Using the data provided in Fig. 1.1, calculate the surface area : volu...
OCR 2023 Biology A H020/02: Depth in biology AS Level Question Paper & Mark Scheme (Merged) Biology A Depth in biology Please write clearly in black ink. Do not write in the barcodes. Centre number Candidate number First name(s) Last name Oxford Cambridge and RSA Thursday 25 May 2023 – Morning AS Level Biology A H020/02 Depth in biology Time allowed: 1 hour 30 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 70. • 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 28 pages. ADVICE • Read each question carefully before you start your answer. You can use: • a scientific or graphical calculator • a ruler (cm/mm) 2 OCR 2023 BLANK PAGE PLEASE DO NOT WRITE ON THIS PAGE 3 Turn over OCR 2023 1 (a) Fig. 1.1 shows two cubes that represent a large and a small multicellular plant. Fig. 1.1 Large multicellular plant Small multicellular plant Length = 2 cm Width = 2 cm Depth = 2 cm Surface area : volume = 6:1 (i) Using the data provided in Fig. 1.1 , calculate the surface area : volume of the large multicellular plant. Surface area : volume = ................................ .......................... [2] (ii) Explain why a large multicellular plant needs a transport system but a small multicellular plant does not. ............................................................................................................................. .............. ............................................................................................................................. .............. ............................................................................................................................. .............. ............................................................................................................................. .............. ............................................................................................................................. ......... [2]
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