Biology aqa as 74011 - Study guides, Class notes & Summaries

2023 AQA AS BIOLOGY 7401/1 Paper 1 Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]

AQA AS BIOLOGY 7401/1 Paper 1 Question Paper & Mark scheme June 2023 VERIFIED 100% What are the advantages of multi-cellular organisms? - --able to move -able to hunt(likely to he in top if food chain) -able to adapt to environment -specialised body reigons -able to find a mate What are the disadvantages of multi-cellular organisms? - -As they get bigger diffusion is less efficient and specialised exchange surfaces are needed Single felled organisms have a __________ surface area to volum...

AQA AS BIOLOGY Paper 1 7401/1 June 2024

Aqa AS BIOLOGY (7401/1) paper 1 CORRECT Question paper May 2024

2 Answer all questions in the spaces provided. 0 1 . 1Describe the primary structure of all proteins. [2 marks] 0 1 . 2 This question is about the genetic code. Define universal, non-overlapping and degenerate. [3 marks] Universal Non-overlapping Degenerate Do not write outside the box 5 IB/M/Jun23/7401/1 3 | P a g e 3 0 2Figure 1 shows a transmission electron microscope (TEM) image of a Streptococcus bacterium. Figure 1 0 2 . 1 Describe how the appearance of the area conta...

AQA AS BIOLOGY 7401/1 Paper 1 Mark scheme June 2024

Actual 2024 AQA AS BIOLOGY 7401/1 Paper 1 Merged Question Paper + Mark Scheme

AQA AS BIOLOGY 7401/1 Paper 1 Question Paper + Mark scheme [MERGED] June 2023 Materials For this paper you must have:  a ruler with millimetre measurements  a scientific calculator. Instructions  Use black ink or black ball-point pen.  Fill in the boxes at the top of this page.  Answer all questions.  You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages.  If you need extra space for your answer(s), u...

AQA AS BIOLOGY 7401/1 Paper 1 / AQA A LEVEL BIO QUESTIONS Question Paper & Mark scheme Merged June 2023 VERIFIED Q1.(a) Describe how you would test a piece of food for the presence of lipid. ....................................................................................................................... . ....................................................................................................................... . .................................................

Actual 2024 AQA AS BIOLOGY 7401/1 Paper 1 Merged Question Paper + Mark Scheme