HESI Biology
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1. Hierarchic System of Organization Kingdom
Phylum
Class
Order
Family
Genus
Species
2. What is the core theme in biology, who in- Evolution is the core theme.
troduced it? When? What book? Charles Darwin introduced it
in 1859 in his book "On the
Origin of Species".
3. What are the following steps that need to be 1. Hypothesis
taken in order to perform an experiment? 2. Experiment
3. Conclusion
4. What is the substance that makes life pos- Water
sible?
5. What is the most significant aspect of wa- The polarity of its bonds
ter?
6. The molecule of water consists of? Two hydrogen atoms cova-
lently bonded to one oxygen
atom.
7. What allows for the hydrogen bonding be- Polar nature of water
tween molecules in water?
8. The benefits of hydrogen bonding (inter- 1. Specific Heat
molecular bonding) 2. Strong cohesive and adhe-
sive properties.
3. Lattice
$. Versatile Solvent
9. Specific Heat The amount of heat neces-
sary to raise the temperature
of 1 gram of that molecule by
1 celsius
, HESI Biology
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10. Specific Heat of water Water has a relatively high
specific heat value, which al-
lows water to rest shifts in
temperature.
11. Powerful benefit of the specific heat of wa- The ability of large body of
ter. waters, like the ocean, to sta-
bilize climates.
12. Cohesion Is the ability of a molecule to
stay bonded or attracted to
another molecule of the same
substance.
13. An example of cohesion and water. How water tends to run to-
gether on a newly waxed car.
14. Adhesion Is the ability of water to bond
to or attract other molecules
or substances.
15. And example of adhesion and water When water is sprayed on a
wall, some of it sticks to the
wall.
16. When is a lattice formed? When water freezes
17. What does a lattice cause? Lattice causes the water mol-
ecules to spread apart. Re-
sulting in the phenomenon of
floating
18. Why is ice floating on water such a phe- Most molecules, when they
nomenon and why is it so important? are in solid form, do not float
on the liquid form of the sub-
stance. If ice did not float,
lakes would freeze from the
bottom up and it would af-
fect many life processes and
, HESI Biology
Study online at https://quizlet.com/_essfnb
probably end life as we know
it to be.
19. Most important molecules (4) 1. Carbohydrates, 2. Lipids, 3.
Proteins 4. Nucleic Acids
20. Carbohydrates are generally long chains, or
polymers, of sugars.
21. The most important function and purpose 1. Storage 2. Structure 3. en-
(3) ergy
22. Lipids are better known as, what? What are Fats. They are specifically fat-
they specifically? ty acids, phospholipids and
steroids.
23. What are the two categories of Fatty Acids? Saturated and Unsaturated
24. Saturated Fats Contain no double bonds in
their hydrocarbon tail. Are
fats that are considered detri-
mental.
25. Unsaturated Fats Liquid at room temperature
26. If this fatty acid is contained in high Saturated Fats
amounts in the diet it can cause cardiovas-
cular problems. What fatty acid is it?
27. Phospholipids Consist of 2 fatty acids of
varying length bonded to a
phosphate group.
28. What are the charges in a phospholipid? The phosphate group is
charged and therefore is po-
lar. The hydrocarbon tail of
the fatty acids is non polar
29. What quality is important in the function of The charge of the phosphate
cellular membranes? group (polar) and the charges
Study online at https://quizlet.com/_essfnb
1. Hierarchic System of Organization Kingdom
Phylum
Class
Order
Family
Genus
Species
2. What is the core theme in biology, who in- Evolution is the core theme.
troduced it? When? What book? Charles Darwin introduced it
in 1859 in his book "On the
Origin of Species".
3. What are the following steps that need to be 1. Hypothesis
taken in order to perform an experiment? 2. Experiment
3. Conclusion
4. What is the substance that makes life pos- Water
sible?
5. What is the most significant aspect of wa- The polarity of its bonds
ter?
6. The molecule of water consists of? Two hydrogen atoms cova-
lently bonded to one oxygen
atom.
7. What allows for the hydrogen bonding be- Polar nature of water
tween molecules in water?
8. The benefits of hydrogen bonding (inter- 1. Specific Heat
molecular bonding) 2. Strong cohesive and adhe-
sive properties.
3. Lattice
$. Versatile Solvent
9. Specific Heat The amount of heat neces-
sary to raise the temperature
of 1 gram of that molecule by
1 celsius
, HESI Biology
Study online at https://quizlet.com/_essfnb
10. Specific Heat of water Water has a relatively high
specific heat value, which al-
lows water to rest shifts in
temperature.
11. Powerful benefit of the specific heat of wa- The ability of large body of
ter. waters, like the ocean, to sta-
bilize climates.
12. Cohesion Is the ability of a molecule to
stay bonded or attracted to
another molecule of the same
substance.
13. An example of cohesion and water. How water tends to run to-
gether on a newly waxed car.
14. Adhesion Is the ability of water to bond
to or attract other molecules
or substances.
15. And example of adhesion and water When water is sprayed on a
wall, some of it sticks to the
wall.
16. When is a lattice formed? When water freezes
17. What does a lattice cause? Lattice causes the water mol-
ecules to spread apart. Re-
sulting in the phenomenon of
floating
18. Why is ice floating on water such a phe- Most molecules, when they
nomenon and why is it so important? are in solid form, do not float
on the liquid form of the sub-
stance. If ice did not float,
lakes would freeze from the
bottom up and it would af-
fect many life processes and
, HESI Biology
Study online at https://quizlet.com/_essfnb
probably end life as we know
it to be.
19. Most important molecules (4) 1. Carbohydrates, 2. Lipids, 3.
Proteins 4. Nucleic Acids
20. Carbohydrates are generally long chains, or
polymers, of sugars.
21. The most important function and purpose 1. Storage 2. Structure 3. en-
(3) ergy
22. Lipids are better known as, what? What are Fats. They are specifically fat-
they specifically? ty acids, phospholipids and
steroids.
23. What are the two categories of Fatty Acids? Saturated and Unsaturated
24. Saturated Fats Contain no double bonds in
their hydrocarbon tail. Are
fats that are considered detri-
mental.
25. Unsaturated Fats Liquid at room temperature
26. If this fatty acid is contained in high Saturated Fats
amounts in the diet it can cause cardiovas-
cular problems. What fatty acid is it?
27. Phospholipids Consist of 2 fatty acids of
varying length bonded to a
phosphate group.
28. What are the charges in a phospholipid? The phosphate group is
charged and therefore is po-
lar. The hydrocarbon tail of
the fatty acids is non polar
29. What quality is important in the function of The charge of the phosphate
cellular membranes? group (polar) and the charges
