Answer Options:
Peptidoglycan
Outer Membrane
Chitin
Cytoplasm
Answer: Outer Membrane
Question: Suppose we take a motor neuron and muscle fiber connected by an NMJ in a petri dish. Now suppose we remove all the T-tubules in the muscle fiber. Which of the following would NOT occur if the motor neuron fired from an action potential?
Answer Options:
Calcium released from the sarcoplasmic reticulum
Ach released at the NMJ
Ach binding to nicotinic ACh Receptors
Calcium released from the sarcoplasmic reticulum
an EPP is made in the muscle fiber near the NMJ
VG Ca channels in the motor neuron opening
Answer: Calcium released from the sarcoplasmic reticulum
Question: One hormone may produce different effects. Which of the following statements best explains this concept?
Answer Options:
One hormone may have different types receptors
One hormone may have different effects given the same receptor
One hormone may have an effect in which the way it can completely differ in its signal transduction
One hormone can have effects in both the cytosol and nucleus
All of the above are true.
Answer: All of the above are true.
Question: Skeletal muscle innervation is all or none response.
Answer Options:
True
False
Answer: True
Question: You want to determine the cell density of a liquid bacterial culture so you perform a serial dilution. You inoculate three TSA plates with 100 µl aliquots from three consecutive dilution tubes. After incubation, you count the colonies counts on each plate and obtain the results listed below. Which plate should be chosen to calculate the original cell density (OCD).
Answer Options:
Plate A: TNTC
Plate B: 342 CFU
Plate C: 43 CFU
Answer: Plate C
Question: A patient is diagnosed with its autoimmune disease Grave’s Disease. Which treatment would benefit this patient?
Answer Options:
A drug that inhibits the release of TSH from the AP
A drug that inhibits the release of TSH from the hypothalamus
A drug that blocks binding to TSH on the thyroid cells.
Glucocorticoid administration.
Administration of endogenous thyroxine (T4/T3)
Answer: A drug that blocks binding to TSH on the thyroid cells.
Question: The pre-frontal cortex of the brain is responsible for
Answer Options:
Decision Making
Focus
Personality
All the above
Answer: All the above
Question: According to Dr. Suzuki, which part of the brain is responsible for long-term memories, facts and events.
Answer Options:
Pre-frontal lobe
Right temporal lobe
Left temporal lobe
Hippocampus
None of the above
Answer: Hippocampus
Question: Dopamine, Serotonin and Noradrenaline are mood created chemicals produced in the brain during exercise.
Answer Options:
True
False
Answer: True
Question: Exercise can benefit the brain and result in better mood, memory, attention and energy.
Answer Options:
True
False
Answer: True
Question: Heat fixation is an important part of the preparation of a bacterial smear.
Answer Options:
True
False
Answer: True
Question: Muscle fibers increase in their numbers for endurance athletes.
Answer Options:
True
False
Answer: False
Question: The type of microscopy in which the field is bright and the specimen appears opaque, is known as _____________-field microscopy.
Answer: Dark
Question: Exercise can have a positive and immediate effect on the brain.
Answer Options:
True
False
Answer: True
Question: The lens which is located directly ABOVE the microscope stage is called the:
Answer Options:
Ocular
Condenser
Eyepiece
Objective
Answer: Condenser
Question: When streaking a plate for isolation of colonies (“streak plate technique”), you should increase the loop between each section streaked.
Answer Options:
True
False
Answer: True
Question: What is the total magnification when using the 40X objective lens of a microscope with an ocular magnification of 5X?
Answer Options:
8X
200X
45X
400X
Answer: 200X
Question: Animals can convert lactic acid/lactate from a fast twitch glycolytic fibers.
Answer Options:
True
False
Answer: True
Question: SRIs bind for Serotonin and Norepinephrine Reuptake Inhibitors. Administration of SRIs will result in…
Answer Options:
a greater chance of serotonin and norepinephrine binding to their receptors on the pre-synaptic membrane
a decrease in serotonin and norepinephrine in the synaptic cleft
no change in serotonin and norepinephrine in the synaptic cleft
a greater chance of serotonin and norepinephrine binding to their receptors on the post-synaptic membrane
none of the above
Answer: a greater chance of serotonin and norepinephrine binding to their receptors on the post-synaptic membrane
Question: Buffalo hump and moon face are found in which disease?
Answer Options:
Cushing’s syndrome
Diabetes insipidus
Addison’s disease
Diabetes Mellitus
Answer: Cushing’s syndrome
Question: Which one of the following would one most likely observe in a young female who inherited an inactivating mutation in the gene for the progesterone receptor?
Answer Options:
inability of the uterus to support pregnancy
inability to ovulate
absence of a typical female appearance
oversecretion of the enzyme dehydroepiandrosterone
enlargement of the uterus during endometrium
Answer: inability of the uterus to support pregnancy
Question: Which of the following muscles shorten in length during a contraction?
Answer Options:
none of the above
myosin
tropomyosin
troponin
none of the above
Answer: none of the above
Question: What is the dilution factor, if you conducted a serial dilution of 0.1 mL of stock culture added to 9.9 mL PSB?
Answer Options:
10^-3
10^-2
10^-1
10^-4
Answer: 10^-2
Question: Threshold absolutely must be reached for an action potential to occur.
Answer Options:
True
False
Answer: True
Question: The only use for iodine in the body is for the synthesis of thyroid hormones (T3/T4).
Answer Options:
True
False
Answer: False