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AQA A LEVEL BIOLOGY PAPER 2 QUESTION PAPER AND WELL DEFINED MARKING SCHEME

BIOLOGY PAPER 2 Questions with complete solution 2025 1.2 = 0.155 1.3 = 180 3.5 = 0.4 and 39.6 6.5 = 48% 7.5 = 0.60 - correct answers MATHS 1.2 1.3 3.5 6.5 - HWE 7.5 -Colonisation by pioneer species -Pioneer species change the environment factors -Environment becomes less hostile for other or new species -Increases biodiversity to climax community - correct answers 1.1 - Describe and explain how succession occurs -Change in sequence of amino acids -Change in hydroge...

Explain why phospholipids form a bilayer. - ANSWERS- Hydrophobic fatty acid tail. - Hydrophilic phosphate head. - Hydrophobic tails are repelled by the charges in the polar cytoplasm and tissue fluid. - Hydrophilic heads are attracted to the. charges in the polar cytoplasm and tissue fluid. - Thus a bilayer is formed with hydrophobic fatty acid tails on the inside and the hydrophilic phosphate tails on the outside. Out of starch, glycogen and a monosaccharide, which has a high solubil...

Biology Paper 2 (GCSE Edexcel Higher) Exam Questions With Correct Answers

Biology Paper 2 is typically a component of biology exams or assessments at various educational levels, often focusing on more advanced topics within the field of biology. This paper is designed to assess a student's understanding of concepts, principles, and applications of biology, with an emphasis on the second part of the subject's curriculum, which generally includes more in-depth studies of genetics, ecology, physiology, and evolution. For students in secondary education, undergra...

▪ True or False: The K/T event is believed to have resulted in the extinction of the dinosaurs and the rise of angiosperms as the dominant land plant. - Ans .True ▪ Which of the following statements about plants is incorrect? - Ans .-plants are typically photosynthetic organisms - plants are most likely evolved from aquatic algal ancestors - plants have influenced earth's atmospheric chemistry, climate, and soils - -the plant kingdom is monophyletic All of the statements about ...

1. Receptors - Ans .Special structures that allow living organisms to sense the conditions of their internal or external environment. 2. Coordination centres - Ans .Receive and process information from receptors 3. Effectors - Ans .cause responses that alter conditions in the internal environment 4. Homeostasis - Ans .A tendency to maintain a balanced or constant internal state; the regulation of any aspect of body chemistry, such as blood glucose, around a particular level 5. Insulin - ...

Biology Paper 2 (GCSE Edexcel Higher) | Latest questions and answers | 2024/25

BIOLOGY PAPER 2 WITH WELL ANYLYSED ANSWERS 2024 EXAM Tutor raphael well based paper 2 Differentiation - The process by which cells become specialized in form and function, such as forming muscle or nerve cells. Meiosis - The process of cell division that creates four haploid cells. Used to make gametes for sexual reproduction, like egg and sperm cells. Haploid - A cell with one copy of each chromomsome. 23 chromosomes in humans Diploid - A cell with two copies of each chromosome. ...

Biology- Paper 2 2024