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Hesi A2 Biology Practice Questions + detailed answers graded A+
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Hesi A2 Biology PracticeQuestions + detailed answers
graded A+
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? - answer ✅✅Precise
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? - answer ✅✅It will swell
and probably burst/hypotonic situation
,Beeswax is an example of what kind of molecule? - answer
✅✅Lipid, waxes oils and fats are lipids
Dogs are part of a larger animal group, the Carnivora.
What classification is this? - answer ✅✅Order
Foods with high salt content do not have to be refrigerated.
What natural process prevents these foods from spoiling? -
answer ✅✅Osmosis
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? - answer ✅✅1 female: 0 male
How do green plants use nitrates in the nitrogen cycle? -
answer ✅✅To synthesize proteins. A nitrate is a nitrogen
containing material found in soil. Green plants take in
nitrates through their roots and use them to make amino
acids, the building blocks of proteins
, How do RNA and DNA derive their names? - answer
✅✅From the sugar each contains
How does an enzyme work on a chemical reaction that
occurs in a substrate? - answer ✅✅An enzyme speeds up
the chemical reaction, because enzymes are catalysts that
speed up reactions. They do this by lowering the amount
of energy needed to begin the reaction.
How does yeast reproduce? - answer ✅✅Budding
How is mitosis different from meiosis? - 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
How many pairs of homologous chromosomes do humans
have? - answer ✅✅23 pairs for a total of 46
If a disease is carried on the dominant allele, only the aa
combination of recessive genes represents a disease free
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