Biology exam 1
inductive reasoning
A type of logic in which generalizations are based on a large number of specific observations.
Why does yogurt taste sharp?
The taste is from the lactic acid it contains, and acids taste sharp.
monomers of protein
amino acids
Prokaryotic organism
bacteria
how do buffers minimize change in the pH of biological systems?
by absorbing H+ ions when there is an excess, by donating H+ ions when there is a shortage
in which of the following classification of organic molecules will table sugar be included?
carbohydrates
which of the following cellular structures is unique to plant cells
chloroplast
aspiring is a drug that imitates the shape of an important substrate for an enzyme inside brain cells, thereby inhibiting the enzyme. This type of inhibition is known as
competitive inhibition
the chemical name for table salt is sodium chloride, or simply NaCL. What type of chemical is NaC1
compound
which structure is common to both prokaryotic and eukaryotic cells
cytoplasm
what we cannot do with energy
destroy it
during which stage of cellular respiration is the majority of the ATP produce
electro transport chain
kinetic energy
energy of motion
is not a typical function of proteins
energy storage
Anabolic reactions may be characterized as
forming large molecules from smaller molecules
Movement down a concentration gradient means that the substance is moving ________.
from an area of high concentration to an area of low concentration
with the scientific method is possible to make intellectual analyses and objective conclusions; however the scientific method CANNOT
generate moral statement
identify the stage of cellular respiration when glucose is split into two molecules of pyretic acid
glycolysis
what is the role of the Smooth endoplasmic reticulum in protein production
has no direct role in protein production
a group of water molecules are held together one to another by
hydrogen bonds
lips are
hydrophobic
Final protein refinements, storage, and packaging occurs ________.
in the Golgi apparatus
cellular structure that can be found in both plant and animal cells
mitochondria
susbstract
molecule that an enzyme acts upon
is a virus considered a living thing
no. it does not posses all of the requirements for life
name for the polymers of carbohydrates
polysaccharides
water being a dam has a certain amount of stored energy that can be released as the water falls over the top of the dam. It may be enough energy to turn a mill wheel or an electricity-generating turbine. choose the tern that best describes the type of energy stored in the water at the top of the dam
potential energy
Main Purpose of Cellular Respiration
produce ATP
What should one do if the results of the experiment consistently do not support the original hypothesis?
reject the original hypothesis and formulate a new hypothesis
potential energy
stored energy that results from the position or shape of an object
if a plant cell had a damaged central vacuole, it would have difficulty performing ..
storing water
definition of energy
the capacity to do work
what causes the surface tension of water to form like water on glass
the cohesion of water molecules to each other.
the most complete explanation of what the PH scale actually measures
the concentration of hydrogen ions in a solution
endocytosis
the ingestion of large molecules and foreign substances through the phospholipid membrane
which structure selectively regulates the transport of substances into and out of a plant cell?
the plasma membrane
mechanism feedback inhibition and the role this process plays in controlling enzyme activity
the use of reaction product to regulate its own further production. the production of amino acids and nucleotides is controlled through feedback inhibition
why do bacterias have ribosomes
to make proteins
what is the main by-product of cellular respiration
water
why cooked egg white never turns back into the clear egg white seen in raw eggs
when egg whites are raw, the proteins are curled up into tight bulks. when heat is applied, these proteins uncoil and get tangled together. these tangled proteins form a kind of mesh which traps the surrounding water. changes color and physical consistency of the egg.
covalent
when the bonded atoms share electrons