BIOLOGY 1M03 Study Guide - Midterm Guide: Electric Field, Probability Distribution, Adapter Molecule Crk

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ceruleanporcupine211

27 Jan 2016

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Or, find from gauss s law, then dq k e r dq r. Ex 2: find the potential of a finite line charge at p, And the y-component of the electric field at p. Example: the electric potential of a dipole y a a. Find: a) potential v at point p. b) what if x>>a ? c) find e. Example: find the potential of a uniformly charged sphere of radius r, inside and out. Recall that the electric field inside a solid conducting sphere with charge q on its surface is zero. Outside the sphere the field is the same as the field of a point charge q (at the center of the sphere). The point charge is the same as the total charge on the sphere. Find the potential inside and outside the sphere. Inside (rr), e is that of a point charge, integral gives.

Related Questions

Please use science in your answers to these questions, with the understanding that science can inform matters of social justice. (Short answers only! No long answers)

1. Given that both conventional breeding and genetic engineering are methods for moving bit of genetic material from one genotype to another:

a) What is one potential advantage of conventional breeding over genetic engineering? In your answer, include a specific example or concept.

b) What is one potential advantage of genetic engineering over conventional breeding? In your answer, use an example from other sources.

2. Of all of the potential benefits of transgenic crops, what do you find most compelling (that is, what is the best argument for pursuing this method of crop development)? Explain your reasoning and use an example from other sources.

3. Of all of the potential benefits of transgenic crops, what do you find the least compelling? Explain your reasoning and use an example from other sources.

brownbeetle862

I need help with the discussion and conclusion. This is the correct result from the experiment and correct format for the lab report.

Objective

Antibiotic disc test (Perform antibiotics test assay)

Introduction

The purpose of this experiment is to learn how to test the susceptibility of microorganisms to various antibiotics. Antibiotic is a chemical produced by a fungus or bacterium that has the potential to limit the growth of another bacterium.

Material and Methods

The description is in the laboratory manual. Test 1 using the aseptic technique to paint the entire surface of a sterile agar plate with E. coli and to covers all the areas then place four different antibiotics disc onto the marked surface with their proper name onto it.

Results

Table 1: Antibiotic inhibition zone results for E. coli

Diameter â Disc/2 = Radius (r)

Disc = 6mm/10 = 0.6 cm.

Bacterium: E. coli
Antibiotic used	Inhibition zone size (cm)
Penicillin 10 mg/1	0
Ampicillin	3.8 â 0.6/2 = 1.6
Penicillin 100 mg/1	1.70 â 0.6/2 = 0.55
Cefoxitin	4.20 â 0.6/2 = 1.8

Discussion/conclusion

Nerve cells that conduct messages are called (1) ____. (2) _____ cells, which support and nurture the activities of neurons, make up less than half the volume of the nervous system. (3) _______ neurons respond to specific kinds of environmental stimuli, (4) ______ connect different neurons in the spinal cord and brain, and (5) ______ neurons are linked with muscles or glands. All neurons have a (6) _______ ________ that contains the nucleus and the metabolic means to carry out protein synthesis. (7) _______ are short, slender extensions of the (6), and together these two neuronal parts are the neuronsâ âinput zoneâ for receiving (8) _____. The (9) _____ is a single long, cylindrical extension away form the (10) ______; in motor neurons, the (11) ______ has finely branched (12) ________ that terminate on muscle or gland cells and are âoutput zones,â where messages are sent on to other cells. A neuron at rest establishes unequal electric charges across its plasma membrane, and a(n) (13) ____ ____ is maintained. Another name for (13) is the (14) _____ _____ _____; it represents an ability for the membrane to be disturbed. Weak disturbances of the neuronal membrane might set off only slight changes across a small patch, but strong disturbances can cause a(n) (15) _______ ______, which is an abrupt, short-lived reversal in the polarity of charge across the plasma membrane of the neuron. For a fraction of a second, the cytoplasmic side of a bit of membrane becomes positive with respect to the outside. The (16) ______ that travels along the neural membrane is nothing more than short-lived changes in the membrane potential. A. Neurons H. Sensory B. Motor I. Endings C. Interneurons J. Disturbance D. Cell body K. Signals (stimuli) E. Axon L. Voltage differential F. Dendrites M. Resting membrane potential G. Neuroglial N. Action potential

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BIOLOGY 1M03 Study Guide - Midterm Guide: Electric Field, Probability Distribution, Adapter Molecule Crk

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