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HESI A2 Exam – Biology Questions With Complete Solutions
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HESI A2 Exam – Biology Questions With Complete Solutions
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HESI A2 Exam – Biology Questions With CompleteSolutions
how are reactions catalyzed in a cell? Correct Answer enzymes
how can a dominant trait be expressed? Correct Answer if a
dominant allele is present
how can a recessive trait be expressed? Correct Answer both
alleles must be recessive
how can you trace many human disorders? Correct Answer
studying a person's chromosomes or creating a pedigree
how do amino acids bind together on a ribosome? Correct
Answer via peptide bonds
how do bases interact on complimentary strands of DNA?
Correct Answer hydrogen bonds
how do bound and free ribosomes differ? Correct Answer
identical in structure, but have slightly different roles
how do new nucleotides bind to exposed bases? Correct Answer
DNA polymerase
how does DNA replication occur? Correct Answer strands are
separated, then with the help of enzymes new complimentary
strands are created from the two original strands. this results in
two double-stranded segments of DNA identical to the original
,how does mRNA leave the nucleus? Correct Answer through
large nuclear pores
how does solar energy get converted to chemical energy during
the light reaction? Correct Answer light energy is absorbed to
split a water molecule and transfer the electron creating
nicotinamide adenine dinucleotide phosphate and producing
ATP
how does the high specific heat value of water play a role in the
biosphere? Correct Answer oceans and large bodies of water
are able to stabilize climates
how is a precusor to glucose formed? Correct Answer
photosynthesis
how is DNA organized within the nucleus? Correct Answer
chromosomes
is saturated fat liquid or solid at room temperature? Correct
Answer solid
is the hydrocarbon tail of a phospholipid water-soluble or not?
Correct Answer it is not water-soluble
is the phosphate head of a phospholipid water-soluble or not?
Correct Answer it is water-soluble
is unsaturated fat liquid or solid at room temperature? Correct
Answer liquid
, what are carbohydrates? Correct Answer generally long chains
or polymers of sugars
what are cardiovascular problems associated with? Correct
Answer diets containing high quantities of saturated fats
what are enzymes? Correct Answer proteins that act to catalyze
different reactions or processes
what are found in cells with a high rate of protein synthesis?
Correct Answer large number of ribosomes
what are long chains of amino acids called? Correct Answer
polypeptides
what are many proteins used for that pass all the way through
the cellular membrane? Correct Answer act as transport
highways
what are metabolic pathways? Correct Answer series of steps
that a reaction takes place
what are nucleic acids? Correct Answer molecules of
inheritance
what are organelles? Correct Answer components found within
cells
what are other examples of genetic expression? Correct Answer
multiple alleles, pleiotropy, epistasis, polygenic inheritance
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