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HESI A2 BIOLOGY QUESTIONS AND ANSWERS 

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HESI A2 BIOLOGY QUESTIONS AND ANSWERS  In the hierarchic system of classification which is the least inclusive? Species After observing an event, you develop an explanation this is: Hypothesis A molecule of water is bonded with another molecule of water by what type of bond? Hydrogen...

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  • May 19, 2024
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  • 2023/2024
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HESI A2 BIOLOGY QUESTIONS AND ANSWERS
In the hierarchic system of classification which is the least inclusive?
Species


After observing an event, you develop an explanation this is:
Hypothesis


A molecule of water is bonded with another molecule of water by what type of bond?
Hydrogen


Which is a benefit of the intermolecular hydrogen bonding of water:
1- Water has a relatively high specific heat value.
2- Water has strong cohesive and adhesive properties.
3- Polarity of water allows it to act as a versatile solvent.


Of all molecules that are significant to biology which are considered important:
nucleic acids


Lipids are better known as fats but what are they specifically?
Fatty acids, phospholipids, steroids


What are the 2 categories of fatty acids?
saturated fats and unsaturated fats


How do phospholipids function in cells?
They are integral components of plasma membrane


Which of the biologic molecules are considered the most significant contributor to cellular function?
Proteins


Proteins are polymers of which?
Amino Acids


Which of the following proteins catalyze different reactions or processes?
Enzyme


Which of the biologic molecules are components of the molecules of inheritance?
Nucleic Acids


What is the sum of all chemical reactions that occur in an organism?
Metabolism


In a cell, reactions take place in a series of steps called:

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