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This comprehensive review session focuses on dissecting past biology exam papers to enhance understanding and boost exam performance. During the session, each question is analyzed in detail, covering the key concepts and methodologies required to answer effectively. We will:Break Down Complex Questions: Simplify and clarify intricate questions, making them more approachable.Provide Thorough Explanations: Offer in-depth explanations for each answer, highlighting important biological principles and processes.Discuss Common Pitfalls: Identify common mistakes and misconceptions, and provide strategies to avoid them..Encourage Active Participation: Involve participants in discussions to reinforce learning and address specific queries.Ideal for students aiming to solidify their knowledge, this review session ensures a thorough understanding of past papers, fostering confidence and readiness for future exams.
Typology: Exams
1 / 29
(:,?021 (^) Pedrrar iid!(atio) (^) Ltd. 1i1i1/li1i1t
Please check the examination details below before entering your candidate jnformation Candidate surname Other names
Pearson Edexcel^
Centre Number Candidate Number
Level 3 GCE
Calculator, HB pencil, ruler
Biology A (Salters^ Nuffield)
Advanced PAPER 1 : The Natural Environment and Species Survival
lnstructions
r (^) Fill in the boxes at the top of this page (^) with your (^) name, centre number^ and candidate number.
where (^) appropriate.
lnformation o (^) The total mark for this paper is 100. a (^) The marks for each question (^) are shown in brackets
structure your answer logically, showing how the points that you make are related or follow on from each other where appropriate.
Advice
a (^) Try to answer every question. I (^) Check your (^) ans,rers if you (^) have tlme (^) at the end.
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R A^ ahsorbs^ infrared radiation reflected^ by^ the^ surface of^ the^ Earth n B (^) absorbs ultraviolet radiation reflected by the surface of the Earth (^) X
il C reflects inlrareA radiation absorbed tiy the surface of the Earth
n D reflects ultraviolet radiation absorbed^ by^ the^ Earth's^ atmosphere
{b) Name^ the^ plant organelle that =^ fixes^ carbon dioxide from^ the^ atmosphere.
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because in the long term it does not add carbon dioxide to the atmosphere.
atmosphere in the lcng term.
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type of human, called Neanderthal, occupied the same geographical^ area.
The photograph^ shows^ the^ skulls^ of both^ types^ of human.
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The quantity^ of extracted DNA^ is amplified using |. (^) : n A DNA profiling
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Since 1992,^ the elephant population in Mozambique^ has^ increased.
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The elephants studied^ were all^ born before^ 1992'
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4 Fertilisation in humans^ involves^ the fusion^ of^ a^ sperm cell^ with^ an^ egg^ cell.
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Describe how^ cells^ become specialised.
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ffi B sclerenchyma fibre that provides (^) support
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(bi (^) Scientists have recently disc*rrered a Rew class of antibiotics that bind to ribssomes.
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resistant to other antibiotics.
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acquired immunodeficiency syndrome (^) {AIDS).
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(iii (^) Stem cell therapy can be used to treat patients infected with HlV.
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I0 Anthropogenic climate change is^ linked to an increase^ in carbon dioxide in the atmospher*.
(a) (^) The World Meteorologiral Association recorded carban dioxide levels af 405 ppm
This is an increase a€ 46a/o since '1817.
Calculate the level of carhon dioxide in 1817. {ft}
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