A-Level Biology - HIV - Structure | How it Replicates | How it Causes AIDS (2026/27 exams)

⭐️ Check out our website https://www.cognito.org/ ⭐️ *** WHAT'S COVERED *** 1. The Structure of the HIV Virus * An explanation of the key components of the virus, including its genetic material (RNA), reverse transcriptase enzyme, capsid, and attachment proteins. 2. The Replication Cycle of HIV * A step-by-step guide on how HIV infects and uses T helper cells to replicate. * The process of attachment, injection of viral RNA, reverse transcription into DNA, and integration into the host cell's genome. * How new virus particles are produced, assembled, and released from the host cell. 3. How HIV Infection Progresses to AIDS * The four key stages of HIV infection: transmission, acute infection, the latency period, and the development of AIDS. * An explanation of how AIDS weakens the immune system, leading to opportunistic infections. * An overview of treatment using Antiretroviral Therapy (ART) to manage the infection. *** EXAM BOARD SPECIFIC INFO *** AQA - Everything is relevant to your course! OCR - This video is not on your course CIE - This video is not on your course *** CHAPTERS *** 0:00 Introduction to HIV 0:22 The Structure of the HIV Virus 1:38 How HIV Replicates in T Helper Cells 3:26 How HIV Infection Causes AIDS 4:45 Treatment for HIV with Antiretroviral Therapy *** PLAYLISTS *** https://youtube.com/playlist?list=PLidqqIGKox7VzYfPIVt8T09xOLNcolCe4&si=8JmDajxjtba6rdc3 https://youtube.com/playlist?list=PLidqqIGKox7UZ3mWhbHv2aA_1vnbsfRPq&si=q3hEKdA4v7kbfwMe https://www.youtube.com/playlist?list=PLidqqIGKox7UTimdJ3eFcnt6xL9GUt2a6 https://youtube.com/playlist?list=PLidqqIGKox7XPh1QacLRiKto_UlnRIEVh&si=orIUwL3o2jOoiYjT https://youtube.com/playlist?list=PLidqqIGKox7X5UFT-expKIuR-i-BN3Q1g&si=DcihOwUkd9oWbbdp https://youtube.com/playlist?list=PLidqqIGKox7WeOKVGHxcd69kKqtwrKl8W&si=Y8MsO-FK948jnxpS https://youtube.com/playlist?list=PLidqqIGKox7UVC-8WC9djoeBzwxPeXph7&si=-7i5Iq7yOeJrhtu6 https://youtube.com/playlist?list=PLidqqIGKox7VKJD2WxRhoKaI6JGLVean8&si=NH_Q1ujhVgACM2FU #Alevel #Biology #study #revision #school #exam #AQA