Hesi A2 Biology Practice Questions with 100% Verified and Updated

Hesi A2 Biology Practice Questions with 100% Verified and Updated Which organelle is responsible for protein synthesis? - Correct Answer ️️ -Ribosome Why is yeast used to make bread rise? - Correct Answer ️️ -Yeast carries out fermentation, producing ethanol and carbon dioxide How is mitosis different from meiosis? - Correct Answer ️️ -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 What can be altered? - Correct Answer ️️ -DNA What is single stranded? - Correct Answer ️️ -RNA What contains uracil? - Correct Answer ️️ -RNA What codes for proteins? - Correct Answer ️️ -DNA Imagine that two parents both carry the recessive gene for cystic fibrosis. Any homozygous recessive offspring will manifest the disease. What percentage of the offspring is predicted to be carriers but not manifest the disease? - Correct Answer ️️ - 50 percent 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? - Correct Answer ️️ -It will swell and probably burst/hypotonic situation What is the purpose of phloem tissue in plant stems? - Correct Answer ️️ -It conducts food throughout the plant, it is the system of narrow tubes that transports sugars and other nutrients Physical factors such as temperature and pH can alter enzyme activity because they have an effect on the enzyme's - Correct Answer ️️ -Shape, the shape of an enzyme controls it's fit with its substrate. Which part of a plants reproductive system is of a different gender than others? - Correct Answer ️️ -Stamen (male reproductive organ) What kind of symbiosis exists between a pneumonia bacterium and a human? - Correct Answer ️️ -Parasitism, one organism benefits off another The scientific name for a house cat is Felis catus. This indicates the house cats what? - Correct Answer ️️ -Genus; species Kingdom/animalia Phylum/Chordata Class/mammalia Order/carnivora Family/felidae Genus/ Felis Species/catus Beeswax is an example of what kind of molecule? - Correct Answer ️️ -Lipid, waxes oils and fats are lipids