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