Skip to content

Course home

Sign up

1.3 Respiration

EasyMediumHard
12345678910111213141516171819202122232425262728293031
Question 6

A student builds two bead models of large biological molecules. Model X is a long, coiled chain in which every bead represents a glucose molecule. Model Y is a chain in which the beads represent many different kinds of amino acid, folded into a particular shape.

Which option names the molecule that each complete model represents?

[1]
A

model X: starch; model Y: protein

B

model X: starch; model Y: DNA

C

model X: lipid; model Y: protein

D

model X: lipid; model Y: DNA

Markscheme

1.3 Respiration Questions

  1. GCSE
  2. /Biology
  3. /1.3 Respiration

113 exam-style questions on OCR GCSE Biology 1.3 Respiration, covering 1.3.1 Cellular respiration supplies ATP, 1.3.2 Aerobic and anaerobic respiration, 1.3.3 Sugars and carbohydrates, 1.3.4 Amino acids and proteins, and 1.3.5 Fatty acids and lipids. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank