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AQA AS BIOLOGY PAPER 2 2024 $7.99
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AQA AS BIOLOGY PAPER 2 2024

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AQA AS BIOLOGY PAPER 2 2024

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  • October 12, 2024
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  • 2024/2025
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AQA AS Biology Paper 2 2023

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AQA AS BIOLOGY PAPER 2 2024

1. Q1.3 (3): Less phospholipids in rough
OR
More protein/glycoprotein in rough
OR
Presence of ribosomes in rough

More protein/glycoprotein/ribosomes, rough - production/transport of proteins

More phospholipid, smooth - production/modification/packaging/transport of lipids 2.
Q2.2 As shown in figure 1, ATP synthase has two functions It catalyses the
synthesis of ATP.
It allows the movement of H^+ ions.

Suggest how the shape of ATP synthase allows it to have these two functions.
Explain your answers. (4): Active site complementary to ADP and Pi Enzyme
substrate complex forms

Channel in membrane
Allows facilitated diffusion of H^+
OR
Channel has tertiary structure specific for only H^+
3. Q3.3 Explain why amylase produced in the human digestive system does not
digest GOS. (2): Active site only complementary to starch
OR
Active site not complementary to GOS

Due to tertiary structure
4. Q3.4 (3): Provides galactose/sugar/monosaccharide
Bacteria use the galactose/sugar for respiration
Bacteria use the galactose/sugar for binary fission
5. Q5.2 Scientists have produced a mutated rice variety in which there is no
crossing over.

A population of the mutant rice variety produced by sexual reproduction shows
genetic variation. Populations of non-mutant rice varieties also show genetic
variation.



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