PEARSON EDEXCEL A LEVEL Biology B PAPER 2 2023 QUESTION PAPER (9BI0/02 : Advanced Physiology, Evolution and Ecology)
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PEARSON EDEXCEL A LEVEL Biology B PAPER 2 2023 QUESTION PAPER (9BI0/02 : Advanced Physiology, Evolution and Ecology). DOWNLOAD OFFICIAL AND VERIFIED EDEXCEL PEA...
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PEARSON EDEXCEL A LEVEL Biology B PAPER 2 2023 QUESTION PAPER (9BI0/02 : Advanced Physiology, Evolution and Ecology). DOWNLOAD OFFICIAL AND VERIFIED EDEXCEL PEARSON A LEVEL Biology B PAPER 2 2023 QUESTION PAPER on www.leakedexams.com


 Carbohydrates and proteins are important biological molecules.
(a) The diagrams show some of the bonds found in biological molecules.
δ–
O Hδ
δ
H Oδ– H C O C C
OH H
H O
H H
C C
V W X
C N C C
O
H
C
C
S
S
Y Z
 (i) Which one of the letters shows a bond that joins glucose molecules together
in a disaccharide?
(1)
A W
B X
C Y
D Z