BIO 151 ACTUAL TEST QUESTIONS AND
ANSWERS WITH DETAILED SOLUTION
GUIDE
●● Cells are primarily made of:
Answer: Water
●● Macromolecules
Answer: A very large organic molecule composed of many smaller
molecules.
●● Carbon-based (organic) biological macromolecules
Answer: Lipids, nucleic acids, proteins, polysaccharides
●● Plasma membrane
Answer: The lipid-based structure encloses cell contents, and allows
regulation of the cell's internal environment.
●● Cytosol
Answer: Aqueous solution that is chemically distinct from the
surrounding environment, composition is actively regulated by the cell.
,●● Viruses
Answer: Tiny particles, smaller than bacteria and other pathogens, which
must invade living cells in order to reproduce; when they invade, the
cells are damaged or destroyed in the process releasing new particles to
infect other cells. Not considered alive
●● DNA
Answer: A complex molecule containing the genetic information that
makes up the chromosomes.
●● RNA
Answer: A single-stranded nucleic acid that passes along genetic
messages.
●● Nucliec acid
Answer: A complex organic substance present in living cells, especially
DNA or RNA, whose molecules consist of many nucleotides linked in a
long chain.
●● Cellular metabolism
Answer: The many chemical activities of cells, occurs within organelles
●● Chemistry of cells is always taking place in a:
Answer: Water-based system + carbon-based system
, ●● Polymer
Answer: A long molecule consisting of many similar or identical
monomers linked together. A macromolecule.
●● Monomer
Answer: A simple compound whose molecules can join together to form
polymers.
●● Atoms
Answer: Smallest unit of matter
●● Protons
Answer: Positively charged particles, P+, are in the nucleus of the atom
●● Electrons
Answer: Negatively charged particles, E-, are in the electron cloud of the
atom
●● Neutrons
Answer: The particles of the nucleus that have no charge, are in the
nucleus of the atom
ANSWERS WITH DETAILED SOLUTION
GUIDE
●● Cells are primarily made of:
Answer: Water
●● Macromolecules
Answer: A very large organic molecule composed of many smaller
molecules.
●● Carbon-based (organic) biological macromolecules
Answer: Lipids, nucleic acids, proteins, polysaccharides
●● Plasma membrane
Answer: The lipid-based structure encloses cell contents, and allows
regulation of the cell's internal environment.
●● Cytosol
Answer: Aqueous solution that is chemically distinct from the
surrounding environment, composition is actively regulated by the cell.
,●● Viruses
Answer: Tiny particles, smaller than bacteria and other pathogens, which
must invade living cells in order to reproduce; when they invade, the
cells are damaged or destroyed in the process releasing new particles to
infect other cells. Not considered alive
●● DNA
Answer: A complex molecule containing the genetic information that
makes up the chromosomes.
●● RNA
Answer: A single-stranded nucleic acid that passes along genetic
messages.
●● Nucliec acid
Answer: A complex organic substance present in living cells, especially
DNA or RNA, whose molecules consist of many nucleotides linked in a
long chain.
●● Cellular metabolism
Answer: The many chemical activities of cells, occurs within organelles
●● Chemistry of cells is always taking place in a:
Answer: Water-based system + carbon-based system
, ●● Polymer
Answer: A long molecule consisting of many similar or identical
monomers linked together. A macromolecule.
●● Monomer
Answer: A simple compound whose molecules can join together to form
polymers.
●● Atoms
Answer: Smallest unit of matter
●● Protons
Answer: Positively charged particles, P+, are in the nucleus of the atom
●● Electrons
Answer: Negatively charged particles, E-, are in the electron cloud of the
atom
●● Neutrons
Answer: The particles of the nucleus that have no charge, are in the
nucleus of the atom
