The HSC Biology 2022 exam was reasonably difficult. If you are looking to read the full exam check it out:
HSC Biology 2022 Exam: available here
Return to: Open access biology text book
Previous Biology exams: Past exams
Multiple choice
For HSC Biology 2022
1. B – shivering and goosebumps would be to warm the body up, we are looking to return the body temperature to 37
2. C – biochemical reactions are required to break down the fat
3. A – antibodies are generated by B cells to target the antigens
4. B – Symptoms of inflammation include: Pain, warmth, redness, loss of function and swelling.
5. B – catagories of disease are given
6. D – Bit of a trickier question compared to previous years. We are looking at fertilisation in the earlier stages, when we have the early embryo (blastocyte) and it will be implanting into the endometrial lining of the uterus, region z on the diagram.
7. D – In 1996, Dolly the sheep was famously cloned using this method of reproductive cloning. Enucleated means the nucleus of the egg cell has been removed. This means adding the nucleus from a somatic cell will result in the offspring being genetically identical to the somatic cell that was used. In effect cloning the organism.
8. B – the egg is initially denucleated so a diploid somatic nuclease can be added. This process is known as somatic cell nuclear transfer.
9. D – Data not included
10. B – the thing being changed on purpose
11. A – the germ theory of disease
12. A – know the structure of DNA and A pairs with T and G pairs with C
13. C – we can see just one base pair has changed since Cytosine and guanine are replaced with thymine and adenine.
14. A
15. C
16. B
17. B – non coding DNA is involved in gene expression
18. A – germline mutation in individual 1 or 2 leading to it being inherited by the offspring
19. D – Myopia shortens the focal length, meaning the focal point doesn’t reach the eyes retina. A convex lens will not correct the focal length, instead making it even shorter.
20. D – as it flows you want to remove the urea from the blood, however, passing the dailastate in the opposite directions prevents it from diffusing over as the blood flows
Short Answer
HSC Biology 2022 short answer section.
Question 21.
a) A Pathogen is capable of producing disease, for example SARs-CoV-2 is a pathogen which can be passed between people via inhaled respiratory droplets which contain the pathogen. This pathogen can cause covid-19 disease.
- Common mistake here would be not giving an example of a pathogen and also of the disease it causes.
b) When there are no cells these will be virus’ and protists. Secondly, when there is no nucleus present these will be protozoa and fungi. Finally, when the nucleus is absent these will be bacteria
Coming soon.