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Essential Chemistry for Biology Flashcards | StudBud
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Essential Chemistry for Biology
Essential Chemistry for Biology
40 terms
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A #biochem #review for #testtime
Flashcards
40 cards
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Questions
40
Answers
1
All of the following are considered macromolecules except...
nucleic acids
carbohydrates
lipids
proteins
2
which of the following is not a function of proteins
homeostasis
structure
transport
contraction
3
The bonds formed between water molecules are called...
Covalent bonds
Ionic Bonds
Peptide bonds
hydrogen bonds
4
Which of the following is NOT a chemical reaction?
Sugar & oxygen gas combine to form carbon dioxide & water
sodium metal and chlorine gas unite to form sodium chloride
ice melts to form liquid water
hydrogen gas combines with oxygen gas to form water
5
Radon, a naturally occurring radioactive gas, is given off by the element _______
Polonium
Uranium
Radium
Platonium
6
Glucose and Fructose are considered to be isomers because...
they are both sugars
their names sound the same
they are both monomers
they both have the same chemical formula
7
A proteins shape is determined by
all of the above
temperature
pH
amino acid sequence
8
The bonds that link amino acids into polymers are called
covalent bonds
hydrogen bonds
peptide bonds
ionic bonds
9
Proteins that speed up chemical reactions are called
amino acids
enzymes
side chains
hemoglobin
10
Trans fats are created through a process called
synthesis
hydrolysis
hydrogenation
dehydration reaction
11
which of the following is not a function of carbohydrates
speed up reactions
plant structure
storage
energy
12
A liquid consisting of a homogeneous mixture of two or more substances is called a(n)...
solution
solute
acid
solvent
13
which of the following would not be considered a functional group for compounds?
carboxyl group
oxygen group
amino group
hydroxyl group
14
The following radioactive isotope is used for carbon dating fossils
Carbon 14
Carbon 15
Carbon 13
Carbon 12
15
Humans cannot digest wood because...
we do not digest carbohydrates
we do not produce the enzymes to break it down
its too tough to chew
it has no nutritional benefits to the body
16
What element plays the leading role in the chemistry of the human body?
Carbon
Nitrogen
Oxygen
Hydrogen
17
A carbon skeleton with four rings fused to it is the structure of a...
nucleic acid
protein
steroid
carbohydrate
18
Which of the following is NOT a nitrogen base for Ribonucleic acid ?
Thyamine
Uracil
Guanine
Adenine
19
Which of the following is not a function of nucleic acids
production of proteins
information storage
energy storage
20
When the number of protons and electrons are equal, an element is said to be
passive
neutral
ionic
active
21
How many elements are essential to human life?
11
4
25
100
22
which of the following is not a function of lipids?
production of proteins
hormone production
long term energy storage
23
How many elements are essential to plant life?
20
18
19
17
24
When Sodium ( a metal) and Chlorine (a non-metal) bond, the following happens...
Nothing , sodium and chlorine cannot bond
Chlorine transfers an electron to sodium
Sodium and chlorine share electrons
Sodium transfers an electron to chlorine
25
A fat that contains two or more double bonds is called
unsaturated
polyunsaturated
saturated
trans
26
Which of the following is a trace element found in the body?
Carbon
Nitrogen
Zinc
Hydrogen
27
a solution of glucose and water is often called
dextrose
glycerol
maltose
sucrose
28
Lithium has how many neutrons on average?
7
4
3
9
29
Which of the following is NOT a monosaccharide?
glucose
fructose
lactose
30
An element's atomic number gives us it's number of
protons
neutrons
electrons
31
_______ helps stabilize the temperatures of the oceans
density
surface tension
evaporative cooling
cohesion
32
nucleotides are the monomers of
lipids
proteins
carbohydrates
nucleic acids
33
Hydrolysis is the process of
Adding water to a compound
Removing water from a compound
34
Monomers are linked into polymers by
carbon skelatons
hydrolysis reactions
dehydration reactions
DNA
35
what is the main carbohydrate used for structure in plants?
cellulose
glycogen
starch
glucose
36
Your body must breakdown marcomolecules into monomers for your cells to harvest the energy
True
False
37
Lactose intolerance is causes by a deficiency in a(n)
enzyme
fat
sugar
steroid
38
The sum total of all chemical reactions in the body is called...
metabolism
science!
matter
organic
39
Which of the following is NOT a property of life?
Growth
Order
Meditation
Regulation
40
The smallest unit of matter that still retains the properties of an element is called a(n)
electron
proton
neutron
atom
