Bio 256 Study Guide Exam Questions
with Complete Answers (100% Pass)
reproduction - Answer-which is NOT an individual's survival need?
it's considered the cause of most diseases - Answer-which of the following statements is
most correct in reference to homeostatic imbalance
to maintain consciousness - Answer-why does your brain require a constant blood flow,
even during stress, such as with intense exercise?
iodine - Answer-which is a less common element of the human body?
water - Answer-what is the universal solvent of life?
electrolytes - Answer-a salt such as NaCl froms ___ when dissolved in water
acids - Answer-which releases H+ in water?
pH 9.6 - Answer-which pH would be considered alkaline?
stay the same - Answer-if you add small amount of vinegar (a weak acid) to a buffer, the
buffer's pH will
a stereoisomer - Answer-a molecule that is a mirror image of another, having key
functional group oriented in a different direction is called ___ of the other
glycogen, starch - Answer-you can store glucose units as ___. but plants store them
as___, which you can eat to obtain energy
glycogen - Answer-in humans, the primary form of carbohydrate storage is
fibrous - Answer-collagen is a ___ protein
provides genetic code - Answer-which is NOT a function of proteins?
ATP - Answer-which is made using the energy in food molecules and used to do work?
RNA - Answer-transcription produces
true - Answer-the firs amino acid of any protein translated is the same- methionine
t/f
, 5' UAC CUC GUA AAU 3' - Answer-transcribe DNA antisense sequence 3' ATG GAG
CAT TTA 5'
all energy transfers lose some free energy as unseable heat - Answer-exergonic
reactions drive endergonic reactions becuase
active site - Answer-carbonic anhydrase, an enzyme, catalyzes a reversible reaction
converting carbons from CO2 into carboninc acid. the specific area of the enzyme
where carbonic acid attaches to is is known as the
Extracellular fluid contains up to 10,000 times more calcium than intracellular fluid, and
yet all cells continue to pump out even more calcium. They could only do this by means
of - Answer-active transport.
When an excitatory stimulus affects a resting neuron, ligand-gated channels open,
allowing - Answer-Na+ to rush in.
In general, do unmyelinated small diameter neuron fibers transmit information faster
than larger myelinated fibers? - Answer-No. Large diameter myelinated neurons are
faster than small diameter unmyelinated neurons.
The rate-limiting, slowest, step of neural transmission is - Answer-Repolarization
When a postsynaptic neuron receives stimuli from several presynaptic neurons, this is
called - Answer-spacial summation.
A neural circuit with input traveling along several pathways for integration by several
CNS systems (and providing several responses) is a - Answer-parallel processing
circuit.
Brain wave amplitude - Answer-reflects the number of neurons firing synchronously.
REM sleep is associated with - Answer-temporary skeletal muscle paralysis, except for
the extrinsic eye muscles.
Which statement is true of short-term memory? - Answer-Its contents are generally
permanent.
Activation of the reticular activating system results in - Answer-Wakefulness
Which is true about functional MRI (fMRI)? - Answer-it uses a magnetic field to stimulate
hypoactive neurons.
Which stimulates inspiration? - Answer-pons apneustic center
Which is NOT innervated by the autonomic nervous system? - Answer-Skeletal Muscle
with Complete Answers (100% Pass)
reproduction - Answer-which is NOT an individual's survival need?
it's considered the cause of most diseases - Answer-which of the following statements is
most correct in reference to homeostatic imbalance
to maintain consciousness - Answer-why does your brain require a constant blood flow,
even during stress, such as with intense exercise?
iodine - Answer-which is a less common element of the human body?
water - Answer-what is the universal solvent of life?
electrolytes - Answer-a salt such as NaCl froms ___ when dissolved in water
acids - Answer-which releases H+ in water?
pH 9.6 - Answer-which pH would be considered alkaline?
stay the same - Answer-if you add small amount of vinegar (a weak acid) to a buffer, the
buffer's pH will
a stereoisomer - Answer-a molecule that is a mirror image of another, having key
functional group oriented in a different direction is called ___ of the other
glycogen, starch - Answer-you can store glucose units as ___. but plants store them
as___, which you can eat to obtain energy
glycogen - Answer-in humans, the primary form of carbohydrate storage is
fibrous - Answer-collagen is a ___ protein
provides genetic code - Answer-which is NOT a function of proteins?
ATP - Answer-which is made using the energy in food molecules and used to do work?
RNA - Answer-transcription produces
true - Answer-the firs amino acid of any protein translated is the same- methionine
t/f
, 5' UAC CUC GUA AAU 3' - Answer-transcribe DNA antisense sequence 3' ATG GAG
CAT TTA 5'
all energy transfers lose some free energy as unseable heat - Answer-exergonic
reactions drive endergonic reactions becuase
active site - Answer-carbonic anhydrase, an enzyme, catalyzes a reversible reaction
converting carbons from CO2 into carboninc acid. the specific area of the enzyme
where carbonic acid attaches to is is known as the
Extracellular fluid contains up to 10,000 times more calcium than intracellular fluid, and
yet all cells continue to pump out even more calcium. They could only do this by means
of - Answer-active transport.
When an excitatory stimulus affects a resting neuron, ligand-gated channels open,
allowing - Answer-Na+ to rush in.
In general, do unmyelinated small diameter neuron fibers transmit information faster
than larger myelinated fibers? - Answer-No. Large diameter myelinated neurons are
faster than small diameter unmyelinated neurons.
The rate-limiting, slowest, step of neural transmission is - Answer-Repolarization
When a postsynaptic neuron receives stimuli from several presynaptic neurons, this is
called - Answer-spacial summation.
A neural circuit with input traveling along several pathways for integration by several
CNS systems (and providing several responses) is a - Answer-parallel processing
circuit.
Brain wave amplitude - Answer-reflects the number of neurons firing synchronously.
REM sleep is associated with - Answer-temporary skeletal muscle paralysis, except for
the extrinsic eye muscles.
Which statement is true of short-term memory? - Answer-Its contents are generally
permanent.
Activation of the reticular activating system results in - Answer-Wakefulness
Which is true about functional MRI (fMRI)? - Answer-it uses a magnetic field to stimulate
hypoactive neurons.
Which stimulates inspiration? - Answer-pons apneustic center
Which is NOT innervated by the autonomic nervous system? - Answer-Skeletal Muscle
