Hesi A2 Biology Practice Questions with complete solutions 2023.

Hesi A2 Biology Practice Questions with complete solutions 2023. Which organelle is responsible for protein synthesis? - correct answers.Ribosome Why is yeast used to make bread rise? - correct answers.Yeast carries out fermentation, producing ethanol and carbon dioxide How is mitosis different from meiosis? - correct answers.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 answers.DNA What is single stranded? - correct answers.RNA What contains uracil? - correct answers.RNA What codes for proteins? - correct answers.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 answers.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 answers.It will swell and probably burst/hypotonic situation What is the purpose of phloem tissue in plant stems? - correct answers.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 answers.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 answers.Stamen (male reproductive organ) What kind of symbiosis exists between a pneumonia bacterium and a human? - correct answers.Parasitism, one organism benefits off another The scientific name for a house cat is Felis catus. This indicates the house cats what? - correct answers.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 answers.Lipid, waxes oils and fats are lipids What takes place in a lysosome? - correct answers.Food is digested, the lysosome contains digestive enzymes. The job of a lysosome is to digest food for cells and break down cells waste products Which organism reproduces via binary fission? - correct answers.Salmonella In which phase of cell division do the chromosomes replicate? - correct answers.Interphase-active phase of a cells reproductive life, the cell produces nucleic acids and proteins and doubled its # of chromosomes In a strand of DNA, you would expect to see adenine paired with? - correct answers.Thymine/adenine Cytosine/guanine Hemophilia is a sex linked trait carried on the X chromosome. In an example of a male with hemophilia and a female carrier, what ratio of the offspring is predicted to have the disease? - correct answers.1 female: 0 male What is represented by this formula 6CO2+6H2O=C6H12O6+6O2 - correct answers.Photosynthesis, carbon dioxide pairing with water to form a simple sugar and oxygen 3 students measured the mass of a product of combustion. They recorded measurements of 5.14g 5.16g and 5.17g if the known mass of the product is 5.30g how would you describe the students measurements? - correct answers.Precise What is the energy pyramid? - correct answers.Producersprimary consumerssecondary consumersdecomposers