GP140 Study guides, Class notes & Summaries

Which statement below is not true regarding the role of the helper t cell? ANSWER: The helper T cell is cytotoxic and kills invaders. Helper T cells are not cytotoxic and kill invaders (this is another type of t cells called cytotoxic t cell). Helper T cells are "helpers" in that they HELP the immune system by releasing cytokines, which help activate other immune system cells. Identify the correct statements about the anatomy of the Human Immunodeficiency Virus (HIV). Select all tha...

MARK SCHEME – AS BIOLOGY – 7401/1 – JUNE 2021 3 Mark scheme instructions to examiners 1. General The mark scheme for each question shows:  the marks available for each part of the question  the total marks available for the question  the typical answer or answers which are expected  Extra information to help the examiner make his or her judgement and help to delineate what is acceptable or not worthy of credit or, in discursive answers, to give an overview of the area i...