3420747
Pregunta 1
Pregunta
What kind of bonds do water molecules form?
Respuesta
-
hydrogen bonds
-
covalent bonds
-
ionic bonds
Pregunta 2
Pregunta
Chemical reactions do not create or destroy matter; they REARRANGE it.
Respuesta
- True
- False
Pregunta 3
Pregunta
What is cohesion?
Respuesta
-
tendency of molecules of the same kind to stick together
-
clinging of one substance to another
Pregunta 4
Pregunta
What is adhesion?
Respuesta
-
tendency of molecules of the same kind to stick together
-
clinging of one substance to another
Pregunta 5
Pregunta
Because of waters hydrogen bonds, water has...
Respuesta
-
has a stronger resistance to temperature change
-
cohesion
-
adhesion
-
easier to heat up
-
slower to evaporate
Pregunta 6
Pregunta
What is a solvent?
Respuesta
-
the dissolving agent?
-
the substance that is dissolved?
Pregunta 7
Pregunta
What is the solute?
Respuesta
-
the dissolving agent?
-
substance that is dissolved?
Pregunta 8
Pregunta
What are the most common elements in the body?
Respuesta
-
Sulfur
-
Hydrogen
-
Calcium
-
Lead
-
Phosphorus
-
Oxygen
-
Magnesium
-
Nitrogen
-
Carbon
-
Silicon
Pregunta 9
Pregunta
Bonds within a molecule are called?
Respuesta
-
intramolecular bonds
-
intermolecular bonds
Pregunta 10
Pregunta
Bonds between molecules are called?
Respuesta
-
intermolecular bonds
-
intramolecular bonds
Pregunta 11
Pregunta
What are ionic bonds?
Respuesta
-
the sharing of electrons
-
electron exchange
Pregunta 12
Pregunta
What are covalent bonds?
Respuesta
-
share electrons
-
electron exchange
Pregunta 13
Pregunta
An acid is a substance that donates [blank_start]hydrogen ions[blank_end] to a solution (exp. hydrochloric acid)
Respuesta
-
hydrogen ions
Pregunta 14
Pregunta
A base is a substance that reduces the [blank_start]hydrogen ion[blank_end] concentration of a solution by adding [blank_start]OH-[blank_end] molecules.
Respuesta
-
hydrogen ion
Pregunta 15
Pregunta
ph scale stands for: [blank_start]potential of hydrogen[blank_end]
Respuesta
-
potential of hydrogen
Pregunta 16
Pregunta
[blank_start]Hydrolysis[blank_end] is used to break polymer bonds
Respuesta
-
Hydrolysis
Pregunta 17
Pregunta
What are monomers for carbohydrates?
Respuesta
-
monosaccharides
-
glycerol
-
amino acids
-
nucleotides
-
fatty acids
Pregunta 18
Pregunta
Carbohydrates are made of [blank_start]monosaccharides[blank_end] which make [blank_start]disaccharides[blank_end] which make [blank_start]polysaccharides[blank_end] using [blank_start]dehydration synthesis[blank_end].
Respuesta
-
monosaccharides
-
disaccharides
-
polysaccharides
-
dehydration synthesis
Pregunta 19
Pregunta
Monomers are linked together form polymers by [blank_start]dehydration synthesis[blank_end], a reaction that removes a molecule of [blank_start]water[blank_end].
Respuesta
-
dehydration synthesis
-
water
Pregunta 20
Pregunta
Glucose is a...
Respuesta
-
polysaccharide
-
monosaccharide
-
disaccharide
Pregunta 21
Pregunta
To form a disaccharide, one monomer gives up a [blank_start]hydroxyl[blank_end] group and the other one gives up a [blank_start]hydrogen[blank_end] atom.
Respuesta
-
hydrogen
Pregunta 22
Pregunta
to make an amino acid what else is necessary?
Respuesta
-
carboxyl
-
amino group
-
r group
-
fatty acid
-
nucleotide
Pregunta 23
Pregunta
What is necessary to form a nucleotide in DNA?
Respuesta
-
deoxyribose (5 carbon sugar)
-
ribose (5 carbon sugar)
-
phosphate group
-
carboxyl group
-
nitrogen base
Pregunta 24
Respuesta
- True
- False
Pregunta 25
Pregunta
The functions of lipids are...?
Respuesta
-
Insulation of the body
-
Quick Energy
-
Genetic Material
-
Support and protection of vital organs
-
Long term energy storage
-
Immune System
Pregunta 26
Pregunta
The function of nucleic acids are...?
Respuesta
-
The energy coin (ATP)
-
Insulation of the body
-
Structure
-
Genetic material
-
Protect vital organs
Pregunta 27
Pregunta
Lipids are made of...
Respuesta
-
amino acids
-
glycerol
-
nucleotides
-
fatty acids
-
monosaccharides
Pregunta 28
Pregunta
Starch is found in plants and serves as a glucose bank. The plant can withdraw glucose for energy or building materials.
Respuesta
- True
- False
Pregunta 29
Pregunta
Chitin is a structural [blank_start]polysaccharide[blank_end] used by insects and crustaceans to build their exoskeletons. It is also found in the [blank_start]cell walls[blank_end] of fungi.
Respuesta
-
polysaccharide
-
cell walls
Pregunta 30
Pregunta
[blank_start]Cellulose[blank_end] is the most abundant compound. Component of the tough cell walls that enclose plant cells.
Respuesta
-
Cellulose
Pregunta 31
Pregunta
Another name for a fat is triglyceride.
Respuesta
- True
- False
Pregunta 32
Pregunta
Which ones are the reactants?
HCI +NaOH=NaCl +H20
Respuesta
-
NaCl +H2O
-
NaCl + HCI
-
HCI + NaOH
Pregunta 33
Pregunta
What cells store fats?
Respuesta
-
Muscle
-
Immune
-
Red Blood Cells
-
Adipose
Pregunta 34
Pregunta
In a phospholipid: the heads are [blank_start]hydrophilic[blank_end], and the tails are [blank_start]hydrophobic[blank_end].
Respuesta
-
hydrophobic
-
hydrophilic
Pregunta 35
Pregunta
Disaccharides are used for...
Respuesta
-
quick energy
-
transfer
-
energy storage
-
structure
Pregunta 36
Pregunta
To test for glucose you would use...
Respuesta
-
Iodine
-
Buirets
-
Benedicts
Pregunta 37
Pregunta
To test for starch you would use...
Respuesta
-
Iodine
-
Buirets
-
Benedicts
Pregunta 38
Pregunta
The two DNA strands are held together by ionic bonds.
Respuesta
- True
- False
Pregunta 39
Pregunta
Functions of protein include...
Respuesta
-
structure
-
enzymes
-
transportation
-
immune system
-
chemical messengers
-
receptors
Pregunta 40
Pregunta
Polypeptides are made of..
Respuesta
-
covalent peptide bonds
-
ionic peptide bonds
-
hydrogen peptide bonds
Pregunta 41
Pregunta
[blank_start]Globular[blank_end] proteins are usually enzymes. [blank_start]Fibrous[blank_end] protein are usually hair, tendons, etc.
Respuesta
-
Fibrous
-
Globular
Pregunta 42
Pregunta
Shape determines [blank_start]function[blank_end] of a macromolecule
Respuesta
-
function
Pregunta 43
Pregunta
To test for protein you use...
Respuesta
-
Biurets
-
Benedicts
-
Iodine
Pregunta 44
Pregunta
In DNA: [blank_start]Adenine[blank_end] forms 2 bonds with [blank_start]Thymine[blank_end] and [blank_start]Guanine[blank_end] and [blank_start]Cytosine[blank_end] form 3 bonds with each other.
Respuesta
-
Adenine
Pregunta 45
Pregunta
[blank_start]Denaturation[blank_end] is when the R-Group interactions are "broken". Causing a protein to lose its ability to function.
Respuesta
-
Denaturation
Pregunta 46
Pregunta
Causes for denaturation...
Respuesta
-
salinity
-
high temp
-
freezing
-
change in pH
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