Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

Answer multiple choice problems on neurotransmitters

1.  describe at the peak of the action potential the magnitude of the driving force on K+ is

1) less than that of Na+

2) greater than that of Na+

3) the same as that of Na+

4) none of the above

2. describe what is the mechanism of action of nicotine?

1) It transforms into acetylcholine.

2) It causes more acetylcholine to be released into the synapse.

3) It is an acetylcholinesterase antagonist.

4) It directly binds to and opens an ion channel.

5) None of the statements above is correct.

3.  describe an enzyme that directly converts a precursor molecule into an active neurotransmitter is

1) Acetylcholinesterase

2) Tyrosine hydroxylase

3) Tryptophan hydroxylase

4) Glutamic acid decarboxylase

5) All of the above.

4. describe you are an axon in the arm of a new-born baby waiting to be myelinated. Who do you wait for?

1) schwann cells

2) astrocytes

3) oligodendrocytes

4) microglia

5. describe if the potential of a membrane containing Cl- channels was held at +80 mV the net flow of Cl- ions would be

1) Inward with its concentration gradient and against the electrical gradient.

2) Inward against its concentration gradient and with the electrical gradient.

3) Outward with its concentration gradient and against the electrical gradient.

4) Outward against its concentration gradient and with the electrical gradient.

5) None of the above.

6. describe a mutant form of the voltage-gated Na+ channel is isolated that allows both Na+ and K+ ions to pass. This mutation is most probable to affect amino acids located in the

1) First transmembrane domain (S1).

2) Fourth transmembrane domain (S4).

3) Sixth transmembrane domain (S6)

4) P region

5) The delayed rectifying K+ channel

7. Define adding a Barium solution to a typical neuron at rest would cause it's membrane potential to

1) depolarize.

2) hyperpolarize.

3) remain unchanged.

8. describe there are few voltage sensitive potassium channels located at nodes of Ranvier

1) true

2) false

9. Imagine you are an aspiring neuron however don't have any ion channels on your membrane. Your inside as well as outside concentrations of ions are physiologically normal and you only have enough resources to produce one type of ion channel. What kind of ion channel should you produce if you want your resting membrane potential to be most similar to that of a typical neuron

1) Na+ channel.

2) K+ channel.

3) Cl- channel.

4) Ca++ channel.

5) None of the above.

10. The dendrite with the longest length constant would be

1) Narrow and leaky

2) Wide and leaky

3) Narrow and not leaky

4) Wide and not leaky

Biology, Academics

  • Category:- Biology
  • Reference No.:- M919242

Have any Question? 


Related Questions in Biology

Transgenic organismsthe development of transgenic organisms

Transgenic Organisms The development of transgenic organisms is an established technique in many laboratories. A transgenic organism is an organism that includes DNA from another organism in the cells of its body. This D ...

1 which type of vessels arteries or veins has more muscle

1) Which type of vessels, arteries, or veins, has more muscle fibers? What is the functional significance of this? 2) In general, we have no conscious control over smooth muscle or cardiac muscle function, whereas we can ...

Track the ingestion and digestion of a ham and cheese

Track the ingestion and digestion of a ham and cheese sandwich on whole wheat bread with lettuce, green pepper, and tomatoes. Describe the fate of this sandwich from the time you eat it. Be very detailed as to the digest ...

Digestion is an important process in the human bodya

Digestion is an important process in the human body. a) Identify and describe the digestive processes. b) Consider the mouth, stomach, small intestines and large intestines - identify the digestive enzymes that are prese ...

Chronic diseasesresearch paper on diabeteseach student will

CHRONIC DISEASES Research Paper on Diabetes Each student will write a 5-7 page research paper on a chronic disease or an emerging/re-emerging disease using at least 5 or more current sources, APA format, double-spaced, a ...

Lets discuss the role of the intestinal microbiota in the

Let's discuss the role of the intestinal microbiota in the maintenance of health and the many opportunistic pathogens that cause disease when the delicate balance of normal microbiota in this region of the body is distur ...

Genes a b and c assort independently if a plant with the

Genes A, B, and C assort independently. If a plant with the genotype AabbCc is crossed to another plant with the genotype AABbCc, what proportion of the progeny will be AabbCC?

Identify and give functions of the organs and structures of

Identify and give functions of the organs and structures of the urinary system.

Identify the single major risk factor associated with the

Identify the single major risk factor associated with the reoccurrence of colon cancer.

Steroids hormonessuch as testosterone are derived from

Steroids hormones,such as testosterone, are derived from cholesterol. What type of macromolecule are they?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen