Phagocytosis is the process whereby macrophages engulfs the pathogen (in this case the bacteria). COVID-19 update: arrangement of our courses. Generally, a virus can enter or invade a host cell in three steps: First, the virus will be required to make contact via electrostatics to the host cell’s surface. The Marek’s disease is caused by the Alphaherpesvirinae Virus which affect many birds such as chickens and turkeys. Hookworms larvae are able to penetrate the skin such as between toes via hair follicles. In order to transmit the disease from one affected organism to another, a mode of transmission of the pathogen is required. yeast) or multicellular (e.g. the Western Australian government has a great resource on Native plant diseases, NAPLAN Practice Tests for Years 3, 5, 7 and 9, How to Write an English Essay in Years 9 and 10, How to Write a Band 6 HSC Creative Writing Story, How To Complete A Close Study of a Novel in 5 Easy Steps, The Ultimate Guide to Prescribed Texts in the HSC Common Module [2020], Pros and Cons of a Bachelor of Education at MQ Uni, Pros and Cons of a Bachelor of Science at UNSW, Pros and Cons of a Bachelor of Medical Science at UTS, Pros and Cons of a Bachelor of Economics at UTS. Log in Sign up. The fungus’ hypha is able to penetrate skin pores or hair follicles in sheeps. Vaccines are often used to defend against viral diseases by triggering a ‘false-alarm’ immune response that will protect against virus when there is a real attack. apply Put to use in a particular situation. If you need a quick recap of these topics, make sure you check out HSC Together which has FREE videos on every single HSC Biology syllabus dot point so that you can effectively consolidate your knowledge! So, as a result, the dead nerve cells in the brain (due to Prion caused diseases) are removed resulting in ‘holes’ in the brain. The disease was responsible for causing 1/7 of the people who died during the time. After his works on Pasteurisation, he was called to rescue the silk industry where silkworm were dying. which gives you the perspective that disease doesn’t just cost health, but costs money, time and resources. Advertise. Inhalation or oral ingestion after unknowingly touching the virus (e.g. Learn vocabulary, terms, and more with flashcards, games, and other study tools. In the case of fungi, the pathogen were able to breakthrough the epidermal cells of the plant directly. The new HSC Biology Module 7: Infectious Disease is brimming with new content! Example: Plasmodium (a protozoan) has adapted living in the Anopheles mosquito species. Disease – An abnormal structural or physiological condition that harms the living organism and lowering its productivity or usefulness. PLAY. Read Book Hsc Biology Textbook specific notes that you need. Created by . If they do get past the border, then depending on the transmission of the infectious disease (person to person, food borne, airborne, vector), there are varying responses to control the epidemic or pandemic which can be found here. He produced two different groups of silkworms using the eggs of healthy moths and the eggs of diseased (with spores under their skin) moths. Therefore, misfolded or abnormal prions are infectious. In the second stage, the virus’ own proteins (from its protein coat) will bind to one or more specific surface receptor belonging to either proteins, lipids or carbohydrates on the host cells’ surface or membrane. 1. You can also stay away from highly populated areas to minimise the obtaining of disease from affected people. Humans can also carry the virus on skin, hair, clothing or shoes and transfer the virus to horses. This allows them to survive, cause diseases such as peptic ulcers and also be able to exit the affected host and affect a new host via water droplets (e.g. So, they use an enzyme called reverse transcriptase to produce DNA from RNA. EasyBio | HSC Biology; Heredity; Genetic Change; Infectious Disease; Non-infectious Disease and Disorders; Other HSC Subjects; EasyChem | HSC Chemistry; EasyPhys | HSC Physics; Search ; EasyHSC is a free online resource for students studying the NSW HSC. Join Our Community we #simplify your HSC success . During the time, scientists observed that when the organs from affected individuals are transplanted or transferred to an unaffected living organism, the unaffected organism would develop tuberculosis. Direct contact by eating beef containing the infectious protein. SKU: HSC-Exam-Ess-Biol-2020-3 Categories: Exam Essentials, HSC, Publications. Suitable for Year 12 students wishing to undertake additional study for Module 7 of the new HSC Biology Syllabus (2017), and accelerated Year 11 students who have already completed Modules 1-4. EXAMPLE: Staphylococcus aureus (Bacteria) and Aeromonas hydrophilia (Bacteria). Module 6. New horses should be quarantined for 14 days before grouping the new horses with existing unaffected horses. Search. Modules & Inquiry Questions. Quantity. Gravity. Drawing a diagram and then watching a video of a concept you are learning is the best way to understand. Name of Bacteria: Mycobacterium Tuberculosis, Air transmission via water droplet (released due to coughing or sneezing). It is inside the vascular system whereby the environment is favourable for the bacteria to reproduce via binary fission, creating bacterial colonies. HSC Biology: FAQs. The common groups are spherical, rod, spiral, comma or oval shape. HSC Biology. Infectious diseases are usually caused by microorganisms that enter the body and trigger the immune system…but how do they actually cause disease? Sometimes, an organism acting as vector must be present to carry the pathogen (e.g. The new HSC Biology Module 7: Infectious Disease is brimming with new content! For this dot point, you can use a pathogen adaptation against the host immune system to round out your answers. When the numbers of pathogen is great enough, the virus will breakthrough the cells and causing further nasal discharges by the horse. You don’t need to use a named pathogen, but it can still be good to name a pathogen e.g.