BIO 1001 COMPLETE LATEST SET
EXAM 1 BASED ACTUAL SET WITH
QUESTIONS AND CORRECT/VERIFIED
ANSWERS
List the following from smallest to largest: ecosystem, atom, community, molecule, species, cell,
population, tissues, organism, biosphere, organs, organ system. - correct answer-✅Atoms, molecules,
cells, tissues, organs, organ system, organism, species, population, community, ecosystem, biosphere
Describe an ionic bond and give an example. - correct answer-✅Electrons being transferred between
any atoms. Ex. NaCl
Describe a covalent bond and give an exmaple. - correct answer-✅Electrons being shared between two
or more atoms. Ex. CO2
Describe a nonpolar bond and give an example. - correct answer-✅Electrons that are shared equally
between bonds.
Describe a polar bond and give an example. - correct answer-✅Electrons that are shared unequally
between bonds. Ex. H2O
Describe a hydrogen bond and give an example. - correct answer-✅Bonds between a slightly positive
hydrogen and a nearby slightly negative oxygen or nitrogen. Ex. H2O-H2O
The structure in a cell that contains the chromosomes. It has a membrane around it and is where RNA is
made from the DNA in the chromosomes. - correct answer-✅Nucleus
Minute particles consisting of RNA and associated proteins found in large numbers in the cytoplasm of
living cells. They bind mRNA and transfer RNA to synthesize polypeptides and proteins. - correct answer-
✅Ribosomes
A structure within or outside a cell consisting of liquid or cytoplasm enclosed by a lipid bilayer. They form
naturally during the processes of secretion (exocytosis), uptake (endocytosis), and the transport of
materials within the plasma membrane. - correct answer-✅Vesicle
Manufacturer of lipids and in some cases to the metabolism of them and associated products. - correct
answer-✅Smooth ER
A membraneous organelle that has a large surface area covered in ribosomes. - correct answer-✅Rough
ER
A complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in
secretion and intracellular transport. - correct answer-✅Golgi Apparatus
Membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of
biological polymers. - correct answer-✅Lysosomes
An organelle found in large numbers in most cells, in which the biochemical processes of respiration and
energy production occur. It has a double membrane, the inner layer being folded inward to form layers
(cristae) - correct answer-✅Mitochondria
What are the four macromolecules we discussed? - correct answer-✅Carbs, lipids, protein, and nucleic
acids.
What do carbs do? - correct answer-✅Energy storage via sugar. Ex. cellulose, starch, rice, glucose.
What do proteins do? - correct answer-✅transports materials, enzymatic activity, and cell signaling. Ex.
insulin and keratin.
What do lipids do? - correct answer-✅Energy storage via fat. Ex. butter, cholesterol fat, and oils.
What do nucleic acids do? - correct answer-✅Codes for genetic information. Ex. DNA and RNA
, A protein that transports molecules is a __________. - correct answer-✅Transport protein
Something attracted to water is ________. - correct answer-✅Hydrophilic
A structure that helps cells maintain their shape is the __________. - correct answer-✅Cytoskeleton
Something that repels water is ________. - correct answer-✅Hydrophobic
A lipid connected to a carbohydrate is a _______. - correct answer-✅Glycolipid
A protein that binds a certain molecule is a _________. - correct answer-✅Receptor protein
A protein that speeds up a reaction is a(n) _________. - correct answer-✅Enzyme
The movement of water molecules from a solution with a high concentration of water molecules to a
solution with a lower concentration of water molecules, through a cell's partially permeable membrane.
- correct answer-✅Osmosis
The process by which molecules, atoms, or ions diffuse through a semipermeable membrane down their
concentration gradient without the assistance of transporter proteins. - correct answer-✅Simple
diffusion
The passive movement of molecules along the concentration gradient. - correct answer-✅Facilitated
diffusion
A process that involves the movement of molecules from a region of lower concentration to a region of
higher concentration against a gradient or an obstacle with the use of external energy. - correct answer-
✅Active transport
The process by which cells take in substances from outside of the cell by engulfing them in a vesicle. -
correct answer-✅Endocytosis
The process by which the contents of a cell vacuole are released to the exterior through fusion of the
vacuole membrane with the cell membrane. - correct answer-✅Exocytosis
A substance that cannot be broken down or converted to similar substances by ordinary chemical
reactions. - correct answer-✅Element
The smallest unit of an element that retain the properties of the element. - correct answer-✅Atoms
A process that forms and breaks chemical bonds that hold atoms together in molecules. - correct
answer-✅Chemical reaction
A subatomic particle that is found in the nuclei of atoms, bears no charge and has a mass approximately
equal to that of a proton. - correct answer-✅Neutron
A subatomic particle that is found in the nuclei of atoms; it bears a unit of positive charge and has a
relatively large mass, roughly equal to the mass of a neutron. - correct answer-✅Proton
A subatomic particle found in an electron shell outside the nucleus of an atom, that bears a unit of
negative charge and very little mass. - correct answer-✅Electron
The central part of an atom that contains protons and neutrons. - correct answer-✅Atomic nucleus
One of several forms of a single element, the nuclei of which contain the same number of protons but
different numbers of neutrons. - correct answer-✅Isotope
A region in an atom within which electrons orbit. - correct answer-✅Electron shell
Why do atoms with unfilled outer electron shells tend to react with one another? - correct answer-
✅Atoms with outer shells that are not full become stable by filling (or emptying) their outer shells.
A particle composed of one or more atoms held together by chemical bonds; the smallest particle of a
compound that displays all the properties of that compound. - correct answer-✅Molecule
An attraction between two atoms or molecules that tends to hold them together. - correct answer-
✅Chemical bond
A charged atom or molecule that either has an excess of electrons or has lost electrons. - correct answer-
✅Ion
A liquid capable of dissolving other substances in itself. - correct answer-✅Solvent
Pertaining to molecules that dissolve readily in water, or to molecules that form hydrogen bonds with
water. - correct answer-✅Hydrophilic
EXAM 1 BASED ACTUAL SET WITH
QUESTIONS AND CORRECT/VERIFIED
ANSWERS
List the following from smallest to largest: ecosystem, atom, community, molecule, species, cell,
population, tissues, organism, biosphere, organs, organ system. - correct answer-✅Atoms, molecules,
cells, tissues, organs, organ system, organism, species, population, community, ecosystem, biosphere
Describe an ionic bond and give an example. - correct answer-✅Electrons being transferred between
any atoms. Ex. NaCl
Describe a covalent bond and give an exmaple. - correct answer-✅Electrons being shared between two
or more atoms. Ex. CO2
Describe a nonpolar bond and give an example. - correct answer-✅Electrons that are shared equally
between bonds.
Describe a polar bond and give an example. - correct answer-✅Electrons that are shared unequally
between bonds. Ex. H2O
Describe a hydrogen bond and give an example. - correct answer-✅Bonds between a slightly positive
hydrogen and a nearby slightly negative oxygen or nitrogen. Ex. H2O-H2O
The structure in a cell that contains the chromosomes. It has a membrane around it and is where RNA is
made from the DNA in the chromosomes. - correct answer-✅Nucleus
Minute particles consisting of RNA and associated proteins found in large numbers in the cytoplasm of
living cells. They bind mRNA and transfer RNA to synthesize polypeptides and proteins. - correct answer-
✅Ribosomes
A structure within or outside a cell consisting of liquid or cytoplasm enclosed by a lipid bilayer. They form
naturally during the processes of secretion (exocytosis), uptake (endocytosis), and the transport of
materials within the plasma membrane. - correct answer-✅Vesicle
Manufacturer of lipids and in some cases to the metabolism of them and associated products. - correct
answer-✅Smooth ER
A membraneous organelle that has a large surface area covered in ribosomes. - correct answer-✅Rough
ER
A complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in
secretion and intracellular transport. - correct answer-✅Golgi Apparatus
Membrane-enclosed organelles that contain an array of enzymes capable of breaking down all types of
biological polymers. - correct answer-✅Lysosomes
An organelle found in large numbers in most cells, in which the biochemical processes of respiration and
energy production occur. It has a double membrane, the inner layer being folded inward to form layers
(cristae) - correct answer-✅Mitochondria
What are the four macromolecules we discussed? - correct answer-✅Carbs, lipids, protein, and nucleic
acids.
What do carbs do? - correct answer-✅Energy storage via sugar. Ex. cellulose, starch, rice, glucose.
What do proteins do? - correct answer-✅transports materials, enzymatic activity, and cell signaling. Ex.
insulin and keratin.
What do lipids do? - correct answer-✅Energy storage via fat. Ex. butter, cholesterol fat, and oils.
What do nucleic acids do? - correct answer-✅Codes for genetic information. Ex. DNA and RNA
, A protein that transports molecules is a __________. - correct answer-✅Transport protein
Something attracted to water is ________. - correct answer-✅Hydrophilic
A structure that helps cells maintain their shape is the __________. - correct answer-✅Cytoskeleton
Something that repels water is ________. - correct answer-✅Hydrophobic
A lipid connected to a carbohydrate is a _______. - correct answer-✅Glycolipid
A protein that binds a certain molecule is a _________. - correct answer-✅Receptor protein
A protein that speeds up a reaction is a(n) _________. - correct answer-✅Enzyme
The movement of water molecules from a solution with a high concentration of water molecules to a
solution with a lower concentration of water molecules, through a cell's partially permeable membrane.
- correct answer-✅Osmosis
The process by which molecules, atoms, or ions diffuse through a semipermeable membrane down their
concentration gradient without the assistance of transporter proteins. - correct answer-✅Simple
diffusion
The passive movement of molecules along the concentration gradient. - correct answer-✅Facilitated
diffusion
A process that involves the movement of molecules from a region of lower concentration to a region of
higher concentration against a gradient or an obstacle with the use of external energy. - correct answer-
✅Active transport
The process by which cells take in substances from outside of the cell by engulfing them in a vesicle. -
correct answer-✅Endocytosis
The process by which the contents of a cell vacuole are released to the exterior through fusion of the
vacuole membrane with the cell membrane. - correct answer-✅Exocytosis
A substance that cannot be broken down or converted to similar substances by ordinary chemical
reactions. - correct answer-✅Element
The smallest unit of an element that retain the properties of the element. - correct answer-✅Atoms
A process that forms and breaks chemical bonds that hold atoms together in molecules. - correct
answer-✅Chemical reaction
A subatomic particle that is found in the nuclei of atoms, bears no charge and has a mass approximately
equal to that of a proton. - correct answer-✅Neutron
A subatomic particle that is found in the nuclei of atoms; it bears a unit of positive charge and has a
relatively large mass, roughly equal to the mass of a neutron. - correct answer-✅Proton
A subatomic particle found in an electron shell outside the nucleus of an atom, that bears a unit of
negative charge and very little mass. - correct answer-✅Electron
The central part of an atom that contains protons and neutrons. - correct answer-✅Atomic nucleus
One of several forms of a single element, the nuclei of which contain the same number of protons but
different numbers of neutrons. - correct answer-✅Isotope
A region in an atom within which electrons orbit. - correct answer-✅Electron shell
Why do atoms with unfilled outer electron shells tend to react with one another? - correct answer-
✅Atoms with outer shells that are not full become stable by filling (or emptying) their outer shells.
A particle composed of one or more atoms held together by chemical bonds; the smallest particle of a
compound that displays all the properties of that compound. - correct answer-✅Molecule
An attraction between two atoms or molecules that tends to hold them together. - correct answer-
✅Chemical bond
A charged atom or molecule that either has an excess of electrons or has lost electrons. - correct answer-
✅Ion
A liquid capable of dissolving other substances in itself. - correct answer-✅Solvent
Pertaining to molecules that dissolve readily in water, or to molecules that form hydrogen bonds with
water. - correct answer-✅Hydrophilic
