BIOLOGY 100 FINAL EXAM STUDY GUIDE | QUESTIONS AND
ANSWERS | VERIFIED AND WELL DETAILED ANSWERS | ALREADY
GRADED A+ | LATEST EXAM
What is a scientific theory? - CORRECT ANSWER - A scientific theory is a
well-substantiated explanation of some aspect of the natural world, based on a
body of facts that have been repeatedly confirmed through observation and
experiment.
What is the correct order of complexity? - CORRECT ANSWER - Atom,
Molecule, Organelle, Cell, Tissue, Organ, System, Organism, Population,
Community, Ecosystem, Biosphere
What is the definition of a population? - CORRECT ANSWER - Members of a
single type of living thing, living together in a defined area
What is homeostasis? - CORRECT ANSWER - Maintaining a constant
internal environment
What is the definition of a tissue? - CORRECT ANSWER - A large mass of
similar cells that make up a part of an organism and perform a specific function.
Living things inherit information from their parents encoded in what? -
CORRECT ANSWER - DNA
What are the subatomic particles of an atom? - CORRECT ANSWER -
protons, neutrons, and electrons
,Which subatomic particle plays the greatest role in chemical reactions? -
CORRECT ANSWER - electrons
Why will atoms react with other atoms? - CORRECT ANSWER - their
outermost shell of electrons has not been filled
What is the definition of a hydrophobic molecule? - CORRECT ANSWER - A
molecule that is repelled by water or is "water-fearing".
How many covalent bonds can oxygen make with hydrogen? - CORRECT
ANSWER - two
What is the definition of a solute? Solvent? - CORRECT ANSWER - A solute
is the substance to be dissolved (example: sugar). The solvent is the one doing
the dissolving (example: water).
What is the definition of an acid (in regards to hydrogen atoms)? - CORRECT
ANSWER - Acids are substances that can donate H+ ions to bases.
What is glycogen? - CORRECT ANSWER - a substance deposited in bodily
tissues as a store of carbohydrates. It is a polysaccharide that forms glucose on
hydrolysis.
What is a polysaccharide? - CORRECT ANSWER - a carbohydrate (e.g.,
starch, cellulose, or glycogen) whose molecules consist of a number of sugar
molecules bonded together
What is a phospholipid? - CORRECT ANSWER - two fatty acids, attached to
a glycerol 'head' and a phosphate group. they are located in the phospholipid
bilayer and have a hydrophilic (or 'water loving') head and a hydrophobic (or
'water fearing') tail.
, What are the functions of proteins? - CORRECT ANSWER - Quickening
chemical reactions, chemical messengers, repair and maintenance, energy,
hormones, enzymes, transportation and storage of molecules, and forming
antibodies, healing, mechanical support, storing nutrients, cell signaling.
What are proteins made up of? - CORRECT ANSWER - amino acids
What is DNA made up of? - CORRECT ANSWER - nucleotides
What are the organelles found in an animal cell? - CORRECT ANSWER -
nucleus, nuclear membrane, cytoplasm, rough and smooth endoplasmic
reticulum, mitochondrion, lysosome, Golgi body, ribosome
What is the boundary of an animal cell called? - CORRECT ANSWER - cell
membrane
What is the main function of the nucleus? - CORRECT ANSWER - Its main
function is to regulate gene expression; it also controls cellular growth and
replication.
What is the main function of ribosomes? - CORRECT ANSWER - making
proteins
What is the main function of the cytoskeleton? - CORRECT ANSWER -
provides structural support
What are found in plant cells and not animal cells? - CORRECT ANSWER -
chloroplasts, central vacuoles, and cell walls
What is the purpose of the plasma membrane? - CORRECT ANSWER - It
regulates what enters and exits the cell.
ANSWERS | VERIFIED AND WELL DETAILED ANSWERS | ALREADY
GRADED A+ | LATEST EXAM
What is a scientific theory? - CORRECT ANSWER - A scientific theory is a
well-substantiated explanation of some aspect of the natural world, based on a
body of facts that have been repeatedly confirmed through observation and
experiment.
What is the correct order of complexity? - CORRECT ANSWER - Atom,
Molecule, Organelle, Cell, Tissue, Organ, System, Organism, Population,
Community, Ecosystem, Biosphere
What is the definition of a population? - CORRECT ANSWER - Members of a
single type of living thing, living together in a defined area
What is homeostasis? - CORRECT ANSWER - Maintaining a constant
internal environment
What is the definition of a tissue? - CORRECT ANSWER - A large mass of
similar cells that make up a part of an organism and perform a specific function.
Living things inherit information from their parents encoded in what? -
CORRECT ANSWER - DNA
What are the subatomic particles of an atom? - CORRECT ANSWER -
protons, neutrons, and electrons
,Which subatomic particle plays the greatest role in chemical reactions? -
CORRECT ANSWER - electrons
Why will atoms react with other atoms? - CORRECT ANSWER - their
outermost shell of electrons has not been filled
What is the definition of a hydrophobic molecule? - CORRECT ANSWER - A
molecule that is repelled by water or is "water-fearing".
How many covalent bonds can oxygen make with hydrogen? - CORRECT
ANSWER - two
What is the definition of a solute? Solvent? - CORRECT ANSWER - A solute
is the substance to be dissolved (example: sugar). The solvent is the one doing
the dissolving (example: water).
What is the definition of an acid (in regards to hydrogen atoms)? - CORRECT
ANSWER - Acids are substances that can donate H+ ions to bases.
What is glycogen? - CORRECT ANSWER - a substance deposited in bodily
tissues as a store of carbohydrates. It is a polysaccharide that forms glucose on
hydrolysis.
What is a polysaccharide? - CORRECT ANSWER - a carbohydrate (e.g.,
starch, cellulose, or glycogen) whose molecules consist of a number of sugar
molecules bonded together
What is a phospholipid? - CORRECT ANSWER - two fatty acids, attached to
a glycerol 'head' and a phosphate group. they are located in the phospholipid
bilayer and have a hydrophilic (or 'water loving') head and a hydrophobic (or
'water fearing') tail.
, What are the functions of proteins? - CORRECT ANSWER - Quickening
chemical reactions, chemical messengers, repair and maintenance, energy,
hormones, enzymes, transportation and storage of molecules, and forming
antibodies, healing, mechanical support, storing nutrients, cell signaling.
What are proteins made up of? - CORRECT ANSWER - amino acids
What is DNA made up of? - CORRECT ANSWER - nucleotides
What are the organelles found in an animal cell? - CORRECT ANSWER -
nucleus, nuclear membrane, cytoplasm, rough and smooth endoplasmic
reticulum, mitochondrion, lysosome, Golgi body, ribosome
What is the boundary of an animal cell called? - CORRECT ANSWER - cell
membrane
What is the main function of the nucleus? - CORRECT ANSWER - Its main
function is to regulate gene expression; it also controls cellular growth and
replication.
What is the main function of ribosomes? - CORRECT ANSWER - making
proteins
What is the main function of the cytoskeleton? - CORRECT ANSWER -
provides structural support
What are found in plant cells and not animal cells? - CORRECT ANSWER -
chloroplasts, central vacuoles, and cell walls
What is the purpose of the plasma membrane? - CORRECT ANSWER - It
regulates what enters and exits the cell.
