HESI A2: EXAM 2 STUDY MODE

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HESI A2: EXAM 2 (STUDY MODE)

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -100 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: Which cell organelle functions to transport materials from the endoplasmic reticulum throughout the cell?

• Ribosome
• Golgi apparatus
• Lysosome
• Vacuole

Answer:

• Golgi apparatus

Question 2: What is the best description for the word laceration?

• The means by which nursing mothers produce milk for their babies
• A deep, ragged tear
• A medical term used to describe the removal of the tear ducts
• An intolerance of dairy products

Answer:

• A deep, ragged tear

Question 3: Proteins are polymers of which of the following?

• Monosaccharides
• Amino acids
• Fatty acids
• Nucleotides

Answer:

• Amino acids

Question 4: What is the most commonly used temperature scale in the scientific community?

• Fahrenheit
• Celsius or Centigrade
• Kelvin
• English temperature method

Answer:

• Celsius or Centigrade

Question 5: How many milliliters are in 1 liter?

• 30
• 10

C. 100

D. 1,000

Answer:

D. 1,000

Question 6: Which component of the cell contributes to the protection, communication, and passage of substances into and out of the cell?

• Nucleus
• Cell membrane
• Endoplasmic reticulum
• Cytoplasm

Answer:

• Cell membrane

Question 7: Amino acids

Answer:

Monomers of proteins; building blocks of proteins

Question 8: Chemical equations are written in which manner?

• Product ? Reactants
• Reactants ? Products
• Reactants + Reactants
• Products + Reactants

Answer:

• Reactants ? Products

Question 9: kg to lbs

Answer:

lbs = (kg)(2.2046)

Question 10: Select the sentence that is grammatically correct.

• The nurse spoke to my sister and I about our mother's condition.
• The nurse spoke to my sister and me about our mother's condition.
• The nurse spoke to me and my sister about our mother's condition.

• The nurse spoke to I and my sister about our mother's condition.

Answer:

• The nurse spoke to my sister and me about our mother's condition.

Always take out the other persons name to double check if it makes sense

Question 11: Electrocardiogram

Beep!...Beep!...Beep! is the audible rhythmic sound made as the strength of the heart muscle is measured. The signal cadence has a characteristic record that varies in every individual. This record is called an electrocardiogram, or ECG.In the body, an array of systemic neural responses constantly occurs, emitting electric currents.The electric currents can be detected on the surface of the body, and if a person is hooked to an amplifier, these impulses are recorded by an electrocardiograph.Most of the information obtained is about the heart because the heart sends out electric currents in waves. This "wave of excitation" spreads through the heart wall and is accompanied by electric changes. The wave takes place in three distinct steps.Initially, the "wave of excitation" accompanied by an electric change lasts for approximately 1 to

• seconds after the contraction of the cardiac muscle. The electric impulses are discharged

rhythmically from the sinoatrial (SA) node, the pacemaker of the heart. This spread of excitation over the muscle of the atrium indicates that the atrium has contracted.Next, the peak of the ECG reading is due to the atrioventricular (AV) node causing the ventricle to become excited.Finally, the ventricles relax, and any changes in the wave indicate to trained medical staff any abnormalities within the heart.What are the three steps of the "wave of excitation"?

• The discharge from the SA node, the peak ECG, and the excitement of the ventricle
• The excitement of the ventricle, the relaxing of the ventricle, and the systemic neural

response

• The contraction of the atrium, the relaxation of the atrium, and the contraction of the ventricle
• The excitation of the atrium, the excitement of the ventricle, and the relaxing of the ventricle

Answer:

• The excitation of the atrium, the excitement of the ventricle, and the relaxing of the ventricle

Question 12: Prokaryotic cell

Answer:

A cell that does not have a nucleus or other membrane-bound organelles.