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HESI A2 RETAKE STUDY GUIDE. EXAM QUESTIONS
Actual Qs and Ans Expert-Verified Explanation
This Exam contains:
-Guarantee passing score -71 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Long chains, or polymers, of sugars that provide storage, structure and energy.
Answer:
Carbohydrate Question 2: When an RNA strand, complementary to the original strand of DNA, is produced.
Answer:
transcription Question 3: because phospholipids are amphipathic, there is a hydrophobic region making the cellular membrane
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selectively permeable Question 4: The ability of a molecule to bond or attract to other molecules or substances
Answer:
Adhesion
Question 5: What are the four steps of the scientific process in order?
Answer:
Observation, Hypothesis, Experiment, Conclusion
Question 6: combination of alleles
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genotype Question 7: in this type of reproduction, two cells contribute genetic material, resulting in significantly greater variation, the cells won't be alike.
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sexual Question 8: RNA consisting of folded molecules that transport amino acids from the cytoplasm of a cell to a ribosome.
Answer:
transfer RNA
Question 9: what alleles will be present
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phenotype
Question 10: What is the most inclusive category in biology?
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Kingdom Question 11: organelles tha tread the RNA produced in the nucleus and translate the genetic instructions to produce proteins
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Ribosomes
Question 12: Ribosomes can be found in what two locations?
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attached to the ER, and in the cytoplasm
Question 13: a type of cell division when the cell pinches in two, forming two separate identical cells
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cytokinesis
Question 14: uracil can be substituted for
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thymine
Question 15: guanine bonds with
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cytosine Question 16: lack a defined nucleus and do not contain membrane bound organelles
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prokaryotic cell Question 17: meiosis consist consist of two stages, resulting in __ daughter cells
Answer:
4
Question 18: Fatty acids that contain no double bonds in their hydrocarbon tail
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Saturated fats Question 19: in step two of metabolism, pyruvate is transported into a mitochondrion and used in the first of a series of reactions called the
Answer:
krebs cycle
Question 20: Proteins are the polymers of 20 molecules called _____
Answer:
amino acids
Question 21: stage in mitosis where chromosomes start to separate
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anaphase Question 22: the third step of metabolism begins with the oxidation of the NADH molecules to produce oxygen and finally to produce water in a series of steps called the
Answer:
electron transport chain
Question 23: glycolysis takes place in the ____ of the cell
Answer:
cytosol
Question 24: The sum of all chemical reactions that occur in an organism
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Metabolism Question 25: stage in mitosis when all of the chromosomes align along the center of the cell
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metaphase Question 26: What cell organelle is responsible for protein synthesis and membrane production?
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Rough ER Question 27: the only way a recessive trait will be expressed is if ___ alleles are recessive
Answer:
both Question 28: used in the transfer of information from DNA to protein level and as a messenger in most species of the genetic code
Answer:
RNA
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