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The Chemistry of Life REVIEW. Atoms of the same element that differ in the number of neutrons they contain are known as ̶. isotopes. Strong forces bind protons and neutrons together to form the ̶. nucleus. Van der Waals forces are (stronger or weaker) than chemical bonds. Weaker.

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atoms of the same element that differ in the number of neutrons they contain are known as
Atoms of the same element that differ in the number of neutrons they contain are known as ̶
  • isotopes
there are electrons being shared between the carbon atoms this is referred to as a covalent bond
There are ____ electrons being shared between the Carbon atoms. This is referred to as a ____ covalent bond.
  • Six, triple
a is a substance formed by the chemical combination of two or more elements in definite proportions
A ______ is a substance formed by the chemical combination of two or more elements in definite proportions.

compound

the atomic structure of a water molecule is useful in demonstrating what kinds of bonds
The atomic structure of a water molecule is useful in demonstrating what kinds of bonds?
  • Covalent bonds
how many neutrons does the diagram of this atom show
How many neutrons does the diagram of this atom show?

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  • four
in a water molecule the end is slightly positive while the end is slightly negative
In a water molecule, the ______ end is slightly positive while the ______ end is slightly negative.

hydrogen, oxygen

slide14
Because the number of positive ions is equal to the number of negative hydroxide ions produced, water is _______.

neutral

water droplets on pine needles are good demonstration of in that they are different substances
Water droplets on pine needles are good demonstration of _________ in that they are different substances.

adhesion

as demonstrated by the picture oil is known to be in that it repels or hates water
As demonstrated by the picture, oil is known to be _________ in that it repels, or hates, water.

Hydrophobic

slide18

Study the two beakers of solution. Beaker B has (more, less or the same) amount of solute and has (more, less or the same) amount of solvent than the beaker A.

A

B

same, more

what does ph measure hint think about what ph is an abbreviation for
What does pH measure? (hint: think about what pH is an abbreviation for)

the concentration of H+ ions in solution.

a n is a compound that produces hydroxide ions oh in solution while a n forms h ions in solution
A(n) ______ is a compound that produces hydroxide ions (OH¯) in solution while a(n) _______ forms H+ ions in solution.

base, acid

slide22
The particles in a (solution or suspension) can be filtered out while the particles in a (solution or suspension) can not.

suspension, solution

vinegar is to a n acid or base as ammonia is to a n acid or base
Vinegar is to a(n) (acid or base) as ammonia is to a(n) (acid or base).

Acid, base.

Acetic acid is the main component in vinegar.

slide24
The strong acid hydrogen fluoride (HF) can be dissolved in pure water. Will the pH of the solution be greater or less than 7.0 and why?

Less than 7.0 because water is already neutral and it will now be a weak acid.

galactose fructose and glucose are all examples of in that they are single sugar molecules
Galactose, fructose and glucose are all examples of ________ in that they are single sugar molecules.

monosaccharides

Galactose is a component of milk!

what is the metabolic process by which the breaking down of complex molecules occurs
What is the metabolic process by which the ‘breaking down’ of complex molecules occurs?

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Catabolism

cellulose is a polysaccharide found in that provides strength

glucose

glucose

glucose

glucose

cellulose

glucose

glucose

glucose

glucose

Cellulose is a polysaccharide found in ______ that provides strength.

plants

lipid a is a fatty acid because it does not have double bonds
Lipid A is a _____ fatty acid because it does not have double bonds.
  • saturated

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A

fodjndkfngadf

B

slide38

Hemoglobin is the iron-containing oxygen-transport metalloprotein in the red blood cells of vertebrates. What kind of protein structure does it demonstrate?

  • Quarternary or 4°
lipids such as olive oil which contains fatty acids tend to be liquid at room temperature
Lipids such as olive oil, which contains ________ fatty acids, tend to be liquid at room temperature.

unsaturated

slide41

Examples of foods containing a high proportion of __________ _________ include cream, cheese, butter, and ghee; suet, tallow, and lard.

Saturated fat

in the amino acid diagram the red circle is the group while the blue circle is the group
In the amino acid diagram, the red circle is the _____ group while the blue circle is the ______ group.

amino,

carboxyl

in protein structure what two levels are missing below in order following the primary structure
In protein structure, what two levels are missing below in order following the Primary structure?

Secondary and tertiary

________?_____

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kdjbfsafksb

_______?_____

slide46

When the level of glucose in your blood runs low, glycogen is released from your liver. It is referred to as an animal starch. This would make it a __________ in that it is made of many sugar units.

polysaccharide

proteins the bottom secondary structure is an alpha helix while the top structure is a
Proteins: The bottom secondary structure is an alpha helix while the top structure is a _______ _______ _______.

Beta pleated sheet

what monomers make up a nucleic acid
What monomers make up a nucleic acid?

nucleotides

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h co co h o
H₂CO₃ → CO₂ + H₂O

Products

Reactants

?

endothermic reaction absorbs energy exothermic reaction releases energy
Endothermic reaction= absorbs energyExothermic reaction: releases energy

Exothermic

What kind of reaction would you classify this as?

slide55

A catalyst changes the rate at which a reaction occurs by increasing it. Therefore, does the catalyst (decrease or increase) the reaction’s activation energy?

Decrease

a is the while b is the
A is the _____ while B is the _____.

A

A is the substrate

B is the enzyme

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B

what three factors can change the productivity or how well it works of an enzyme
What three factors can change the productivity, or how well it works, of an enzyme?
  • pH, temperature, and salinity
the following protein has been in that it has unwound or the coils have come undone
The following protein has been ________ in that it has unwound or the coils have come undone.

denatured

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