BW-A2-OptionA-W1

Option A Immunology and disease worksheet | WJEC Biology

15 exam-style questions, 160 marks. Download the question paper and its matching mark scheme below.

Worksheet 1: Option A Immunology and disease (160 marks)

Written by BioWelsh in the style of the WJEC A level Biology examination. Not an official WJEC paper.

Image credits

All graphs and drawings without an entry are original BioWelsh drawings.

Image 2.1: Micrograph: Ronald Taylor, Tom Kirn and Louisa Howard, Dartmouth Electron Microscope Facility, copyrighted free use (Wikimedia Commons, 'Cholera bacteria SEM'). Cropped; scale bar redrawn from the original, letter and label line added.
Image 3.1: Micrograph: CDC/Dr. George P. Kubica, public domain (Wikimedia Commons, 'Mycobacterium tuberculosis Ziehl-Neelsen stain 02'). Cropped.
Image 4.1: Micrograph: CDC/Dr. Fred Murphy and Sylvia Whitfield, public domain (Wikimedia Commons, 'Smallpox virus virions TEM PHIL 1849'). Cropped; letters and label lines added.
Image 6.2: Micrograph: CDC/Dr. Greene, public domain (Wikimedia Commons, 'Plasmodium falciparum rings form parasites4885 lores'). Cropped; letters and label lines added.