Hesi A2 BIOLOGY EXAM / 70+ QUESTIONS AND CORRECT ANSWERS 2023/2024 GRADED A+

Hesi A2 BIOLOGY EXAM / 70+ QUESTIONS AND CORRECT ANSWERS 2023/2024 GRADED A+ 2 / 5 1. Which organelle is responsible for protein synthesis?: Ribosome 2. Why is yeast used to make bread rise?: Yeast carries out fermentation, produc-ing ethanol and carbon dioxide 3. How is mitosis different from meiosis?: Meiosis creates sex cells with half the# of chromosomes of the parent cell where as mitosis creates cells that are exact copies of each other, down to the number of chromosomes 4. What can be altered?: DNA 5. What is single stranded?: RNA 6. What contains uracil?: RNA 7. What codes for proteins?: DNA 8. Imagine that two parents both carry the recessive gene for cystic fibro- sis. Any homozygous recessive offspring will manifest the disease. What percentage of the offspring is predicted to be carriers but not manifest thedisease?: 50 percent 9. A cell is in a solution in which the concentration of solutes is higher inside the cell than outside the cell. What would you expect to happen to the cell?: Itwill swell and probably burst/hypotonic situation 10. What is the purpose of phloem tissue in plant stems?: It conducts food throughout the plant, it is the system of narrow tubes that transports sugars andother nutrients 11. Physical factors such as temperature and pH can alter enzyme activity because they have an effect on the enzyme's: Shape, the shape of an enzymecontrols it's fit with its substrate. 12. Which part of a plants reproductive system is of a different gender thanothers?: Stamen (male reproductive organ) 13. What kind of symbiosis exists between a pneumonia bacterium and ahuman?: Parasitism, one organism benefits off another 14. The scientific name for a house cat is Felis catus.This indicates the housecats what?: Genus;species Kingdom/animalia Phylum/Chordata 3 / 5 Class/mammalia Order/carnivora Family/felidae Genus/ Felis Species/catus 15. Beeswax is an example of what kind of molecule?: Lipid, waxes oils and fatsare lipids