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Chemistry
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Overview of Chemistry for the human body
Flashcards
31 cards
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Practice quiz
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Questions
31
Answers
1
Which subatomic particles have the same number/amount of molecules?
neutrons, carbon
protons, neutrons
electrons, protons
electrons, neutrons
2
Choose the correct statement about Phospholipids and Triglycerides.
They are similar because they both are types of Steroid.
Phospholipids have two fatty acids, triglycerides have three
Similar because they both have three fatty acid chains.
They differ because one is a trans-fat and one is omega-3
3
What provides chemical energy?
ATP
ADP
Proteins
DNA
4
What does a neutralization reaction create?
water and salt
pH and buffers
buffers and proteins
water and proteins
5
Saturated and unsaturated fats are an example of which type of lipid?
triglycerides
Proteins
Omega-2
Cholesterol
6
X-rays are a form of what energy?
chemical
mechanical
radiant
electrical
7
An insect called a water strider can walk on a pond's surface. How is this possible?
combined strength of hydrogen bonds (surface tension)
it can walk on the water surface due to adhesion
Insect weighs a small amount
the cohesions of the water allow it to happen
8
A _______ is the smallest part of a _________.
molecule, atom
atom, molecule
compound, molecule
atom, compound
9
What process breaks sugar bonds apart?
dehydration reaction
polysaccharides
hydrolosis
covalent bond
10
These are formed by ionic bonds.
cations
anions
both anions and cations
valance shells
11
When energy is converted...
energy becomes lost
nothing happens
energy recreates and expands
energy is removed/deleted
12
What are the three main subparticles in an atom?
protons, neutrons, electrons
oxygen, protons, molecules
Carbon, hydrogen, electrons
nucleus, cell, cell wall
13
Which type of lipid has the most fatty acid chains?
Steroids
Phospholipids
Triglycerides
Amino Acids
14
The outer-most chell of an electron is called...
valance shell
outer shell
positive shell
electron shell
15
What's the difference between potential and kinetic energy?
potential is inactive, kinetic is a subgroup of potential
kinetic is constant movement, potential is inactive
potential is in constant movement, kinetic is inactive
kinetic is inactive, potential is a subgroup of kinetic
16
What 2 polysaccharides are of major importance to the body?
lactose and maltose
fructose and glucose
starch and glucose
glycogen and starch
17
A _________ is the smallest particle of a compound.
molecule
element
atom
neutron
18
Which of the following is (are) true concerning the atomic nucleus?
contains particles that determine anatomical number
contains particles that interact with other atoms
the negatively charged particles are located here.
particles can be ejected
19
The chemical reaction is shown by writing...
the chemical equation
the reactent
the molecular formula
the product
20
What is the main function of the planetary model of atoms?
ejects particles or energy from the nucleus
portrays all of the mass of atoms
Calculates the atomic number and weight
it exhibits properties different than atoms
21
What are the functional proteins that act as a biological catalyst?
Proteins
DNA
Nucleotides
Enzymes
22
What's an example of physical change?
digestion of food
fermenting grapes
crumpling a sheet of paper
burning wood
23
What happens when your electrolyte balance is disturbed?
nothing in your body functions correctly
nothing
your pH level changes
your body shuts down
24
A large carbohydrate molecule is broken down into a small molecule. What is this an example of?
Both B and C
synthesis reaction
exchange reaction
decomposition reaction
25
What makes up genes and the basis of life?
Nucleotides
Nucleic acids
DNA
ATP
26
What happens when acids are dissolved in water?
they release hydrogen ions and some anions
they become more harmful
acid turns into base
they obtain hydrogen ions
27
Which carbohydrate
is not
a monosaccharide?
fructose
lactose
glucose
ribose
28
In this example H+H= H2, H2 is:
the chemical equation
the reactant
the product
the molecular formula
29
What are the three main type of lipids?
triglycerides, fatty acids , cholesterol
triglycerides, phospholipids, fatty acids
steroids, phospholipids, trans fat
phospholipids, triglycerides, steroids
30
What are the building blocks of proteins?
DNA
ATP
Amino Acids
RNA
31
What monosaccharide is known as blood sugar and is the universal cellular fuel?
glucose
fructose
galatose
deoxyribose
