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Duplicate of Biochem for Biology
Ionic bonds are formed when...
What does the following graph show?
Duplicate of Biochem for Biology
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Biology Biochemistry basics
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Answers
1
What does the following graph show?
Activation energy of endothermic reaction
Enzyme slowing the reaction down
Enzyme raising the activation energy
Activation energy of exothermic reaction
2
Ionic bonds are formed when...
Two elements share a pair of electrons between them
Unicorns smile
An electron is transferred and the resulting charges attract
Water molecules stick together
3
What does denaturing mean?
To change shape
To form bonds/bind
To dance around in the woods
To alter the pH
4
The monomer shown in the image is
A nucleotide
A monosaccharide
A simple sugar
An amino acid
5
Which of the following is true of enzymes? Select all that are true
They are sensitive to concentrations of enzymes.
They are sensitive to substrates.
They are sensitive to temperature.
They are sensitive to pH.
6
The thing an enzyme binds to is called the...
substrate
enzyme
product
reactant
7
The macromolecule shown is a
Nucleic Acid
Lipid
Carbohydrate
Protein
8
This is an image of a/an
nucleic acid
carbohydrate
protein
lipid
9
Which of the following is not true about DNA?
It is a protein
It is made up of nucleotides
It is a macromolecule
It contains a 5-Carbon sugar
10
When the temperature or pH gets too high, what happens to an enzyme?
The amount of substrate goes down.
It competes with other enzymes.
The activation energy changes.
It becomes denatured.
11
This is an image of a/an
Protein
Carbohydrate
Lipid
Amino Acid
12
The macromolecule shown in the image is made of simple sugars, so it is a
Nucleic Acid
Starch
Monosaccharide
Lipid
13
Which of the following is true of this image?
It is a macromolecule
It is nonpolar
It is carbohydrate
It is used for long term energy storage
14
The small molecules that make up a polymer are called
Monomers
Lipids
Starches
Bimers
15
The water molecules shown are stuck together with
Ionic Bonds
Adhesion
Super Glue
Hydrogen Bonds
16
What are bonds made of?
compounds
valence electrons
molecules
peptides
17
A reaction has water as a product. What type of reaction could this be?
adhesion
dehydration synthesis
cohesion
hydrolysis
18
The water molecule is referred to as "polar" because
It has ionic bonds
It is cold
The oxygen is more negatively charged than hydrogen
It has no electrons
19
How do you know where a peptide bond is? Select all that apply
between the amino acids
between a carbonyl and an alpha carbon
between the two C's in a fatty acid
between two monosaccharides
20
What is the monomer that makes up nucleic acids?
Monosaccharides
Nucleotides
Magic
Amino Acids
21
Lipids are made of all of the following except...
Hydrogen
Nitrogen
Nonpolar bonds
Carbon
22
What types of molecules can dissolve in water?
polar
electrons
elements
nonpolar
23
Which macromolecule is used for short term energy?
Nucleic Acid
Carbohydrate
Protein
Lipid
24
What type of reaction creates multiple monomers from one polymer?
hydrolysis
adhesion
cohesion
dehydration synthesis
25
Which of the following is a carbohydrate polymer?
triglyceride
starch
glycogen
glucose
26
Where is a product located?
To the right of the arrow
After the arrow
Above the arrow
To the left of the arrow
27
What does 2 represent in the graph?
the activation energy of the reaction
the energy of the products
the energy of the reactants
the total energy released in the reaction
28
The type of bond where two elements share and electron pair is called
Hydrogen
Covalent
Van der Waals
Ionic
29
The molecule being shown in the image is a
Monomer
All the others are correct
Nucleotide
Molecule
30
All organic substances contain
nitrogen
water
oxygen
carbon
31
Which type of macromolecule includes enzymes?
Proteins
Carbohydrates
Nucleic Acids
Lipids
32
Oils and waxes are examples of
lipids
carbohydrates
proteins
nucleic acids
33
A chemical compound is best described as a
An element with a charge
A mixture of solutes and solvents
Elemet with more neutrons
Two or more elements combined by bonds
34
What type of bond holds amino acids together?
amino bonds
glycosidic bonds
peptide bonds
hydrogen bonds
35
Something that lowers the activation energy so a reaction can happen faster is called a/an...
catalyst
protein
product
molecule
36
What does 4 represent in the graph?
the activation energy of the reaction
the total energy released in the reaction
the energy of the reactants
the energy of the products
