©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
Bio 151 VCU test #1 Practice Questions
and Answers
what is the charge of an atoms core? - ANSWER✔✔-positive
atomic mass - ANSWER✔✔-number of protons and neutrons in an atom
orbital - ANSWER✔✔-the space where an electron orbits an atom's nucleus
Isotope - ANSWER✔✔-atoms of an element that have a different number of neutrons
Ionic bond - ANSWER✔✔-atoms held together by electrostatic attraction. Attraction of oposite ions
cation - ANSWER✔✔-atoms that lose an electron
anion GAIN=AIN - ANSWER✔✔-atom that gained an electron
covalent bonding - ANSWER✔✔-chemical bond formed between 2 atoms by the sharing of an electron
very strong
Page 1/44
, ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
hydrogen bonding - ANSWER✔✔-covalent bond between 2 hydrogen atoms
chemical equillibrium - ANSWER✔✔-most chemical reactions are reversible
equilibrium - ANSWER✔✔-concentrations of reactants and products are no longer changing
cohesion COFRIEND=LIKE - ANSWER✔✔-the attraction of like molecules
adhesion - ANSWER✔✔-the attraction of dissimilar molecules
acid - ANSWER✔✔-chemical compounds that donates H+ ions to solutions
below 7 on the scale
base - ANSWER✔✔-compound that accepts H+ ions and removes them from a solution
above 7
Isomers - ANSWER✔✔-compounds with the same molecular formula but different structures
Hydroxyl group R-OH - ANSWER✔✔-containing an oxygen atom connected by a covalent bond to a
hydrogen atom
found on amino acids and nucleic acids
Page 2/44
, ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
typical of alcohols and carbohydrates
Carboxyl group -COOH - ANSWER✔✔-found on organic acids like amino acids and nucleic acids.
Polar group due to polar covalency between O and H and O and C
readily ionizes in water to release H-
Amino group - ANSWER✔✔-in chemistry, functional group that consists of a nitrogen atom attached by
single bonds to hydrogen atoms
polar group due to polar covalency between N and H's
basic group found on amino acids and nucleic acids
Phosphate group - ANSWER✔✔-found on nucleoside phosphates like ATP, GTP, etc. and on nucleic acids
which are made from nucleoside phosphates
very polar.
Transfers energy between organic molecules
Monomers - ANSWER✔✔-small organic molecules
Page 3/44
, ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
monosachharide,amino acids, fatty acids, nucleotides
Dehydration reaction - ANSWER✔✔-removal of water to form bonds
polymers - ANSWER✔✔-many monomers bonded together
form large organic molecules
carbohydrates - ANSWER✔✔-sugars
disaccharides - ANSWER✔✔-composed of two monosaccharides product of condensation of Hexoses
polysaccharids - ANSWER✔✔-polymers of thousands of monosaccharides.
long term energy storage
glycogen - ANSWER✔✔-multi branched polysachharide of glucose. short term storage in animals
Lipids - ANSWER✔✔-Fats, steroids
fatty acids - ANSWER✔✔-long chain hydrocarbons terminating in a carboxyl group
saturated fats - ANSWER✔✔-fat molecules with all single bonds between carbon molecules
solid at room temps
Page 4/44
FIRST PUBLISH OCTOBER 2024
Bio 151 VCU test #1 Practice Questions
and Answers
what is the charge of an atoms core? - ANSWER✔✔-positive
atomic mass - ANSWER✔✔-number of protons and neutrons in an atom
orbital - ANSWER✔✔-the space where an electron orbits an atom's nucleus
Isotope - ANSWER✔✔-atoms of an element that have a different number of neutrons
Ionic bond - ANSWER✔✔-atoms held together by electrostatic attraction. Attraction of oposite ions
cation - ANSWER✔✔-atoms that lose an electron
anion GAIN=AIN - ANSWER✔✔-atom that gained an electron
covalent bonding - ANSWER✔✔-chemical bond formed between 2 atoms by the sharing of an electron
very strong
Page 1/44
, ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
hydrogen bonding - ANSWER✔✔-covalent bond between 2 hydrogen atoms
chemical equillibrium - ANSWER✔✔-most chemical reactions are reversible
equilibrium - ANSWER✔✔-concentrations of reactants and products are no longer changing
cohesion COFRIEND=LIKE - ANSWER✔✔-the attraction of like molecules
adhesion - ANSWER✔✔-the attraction of dissimilar molecules
acid - ANSWER✔✔-chemical compounds that donates H+ ions to solutions
below 7 on the scale
base - ANSWER✔✔-compound that accepts H+ ions and removes them from a solution
above 7
Isomers - ANSWER✔✔-compounds with the same molecular formula but different structures
Hydroxyl group R-OH - ANSWER✔✔-containing an oxygen atom connected by a covalent bond to a
hydrogen atom
found on amino acids and nucleic acids
Page 2/44
, ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
typical of alcohols and carbohydrates
Carboxyl group -COOH - ANSWER✔✔-found on organic acids like amino acids and nucleic acids.
Polar group due to polar covalency between O and H and O and C
readily ionizes in water to release H-
Amino group - ANSWER✔✔-in chemistry, functional group that consists of a nitrogen atom attached by
single bonds to hydrogen atoms
polar group due to polar covalency between N and H's
basic group found on amino acids and nucleic acids
Phosphate group - ANSWER✔✔-found on nucleoside phosphates like ATP, GTP, etc. and on nucleic acids
which are made from nucleoside phosphates
very polar.
Transfers energy between organic molecules
Monomers - ANSWER✔✔-small organic molecules
Page 3/44
, ©EMILLECT 2024/2025 ACADEMIC YEAR. ALL RIGHTS RESERVED
FIRST PUBLISH OCTOBER 2024
monosachharide,amino acids, fatty acids, nucleotides
Dehydration reaction - ANSWER✔✔-removal of water to form bonds
polymers - ANSWER✔✔-many monomers bonded together
form large organic molecules
carbohydrates - ANSWER✔✔-sugars
disaccharides - ANSWER✔✔-composed of two monosaccharides product of condensation of Hexoses
polysaccharids - ANSWER✔✔-polymers of thousands of monosaccharides.
long term energy storage
glycogen - ANSWER✔✔-multi branched polysachharide of glucose. short term storage in animals
Lipids - ANSWER✔✔-Fats, steroids
fatty acids - ANSWER✔✔-long chain hydrocarbons terminating in a carboxyl group
saturated fats - ANSWER✔✔-fat molecules with all single bonds between carbon molecules
solid at room temps
Page 4/44
