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Question bank·1.2 What happens in cells (and what do cells need)?

1.2 What happens in cells (and what do cells need)?

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Question 24

68%

To prevent osmotic imbalance while maintaining a readily accessible energy reserve for cellular respiration, animal cells polymerise excess glucose into a highly branched storage macromolecule.

Identify this storage polymer and the specific monomeric unit from which it is constructed.

A

Starch, composed of $α\alpha$ -glucose

B

Glycogen, composed of $β\beta$ -glucose

C

Glycogen, composed of $α\alpha$ -glucose

D

Cellulose, composed of $β\beta$ -glucose

Markscheme

1.2 What happens in cells (and what do cells need)? Questions

GCSE
Biology
1.2 What happens in cells (and what do cells need)?

184 exam-style questions on OCR GCSE Biology 1.2 What happens in cells (and what do cells need)?, covering 1.2.1 Structure of DNA, 1.2.2 Nucleotides and complementary bases, 1.2.3 Protein synthesis, 1.2.4 DNA structure and the proteins made, 1.2.5 Investigating enzymatic reactions, and 1.2.6 Mechanism of enzyme action. Each one has a worked solution and a mark scheme showing where the marks go.

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