diffuse out across the membrane. My results went well compared to my prediction because I predicted that the resting membrane potential would become less negative. 3. The extracellular Na+ did not alter the membrane potential in the resting neuron because the Na+ channels were mostly closed. 4. Na+ and K+ both have a relative permeability of 0 voltage outside a resting neuron and a relative negative permeability inside a resting neuron. 5. A change in Na+ or K+ conductance would affect the resting membrane
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Exercise 3: Implicit Association Test I took two Implicit Associations Tests; the first regarding weight and whether or not I prefer fat people or skinny people‚ and the second regarding whether or not I prefer homosexual or heterosexual people. I was a bit confused over the way these tests work‚ and found my results to be strange (or rather‚ didn’t understand where the results really came from). The first IAT interpreted that I have no implicit preference for skinny people over fat people‚ while
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increase in extracellular K+ 3. Which of the following has the most negative voltage? a. Between the outside of the axon and outside the cell body with control K+ ECF b. Between the outside of the axon and outside the cell body with High K+ ECF c. Between the inside of the axon and the outside of the axon with control K+ ECF d. Between the inside of the axon and the outside of the axon with High K+ ECF Activity 2 Pre-Lab Quiz 1 = c; 2= e; 3 = c; 4 = c Stop& Think Questions
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Off (MWCO) membrane because urea is too big of a molecule to diffuse through the 20 MWCO membrane’s pores aren’t large enough for the urea to pass through. Our prediction was correct‚ the Urea was unable to diffuse though such a small membrane. 3. Describe the results of the attempts to diffuse glucose and albumin through the 200 MWCO membrane. How well did the results compare with your prediction? We predicted that glucose and albumin would both diffuse very slowly through the 200 MWCO because
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Lind Chapter 3: Exercise 60 Owens Orchards sells apples in a large bag by weight. A sample of seven bags contained the following numbers of apples: 23‚19‚26‚17‚21‚24‚22. a. Compute the mean number and median number of apples in a bag. Total number of Problems = 11 Mean = (23+19+26+17+21+24+22)/7 = 21.71 Problems correct = 8 Median = 22 CORRECT List of # in order from low to high: 17‚19‚21‚22‚23‚24‚26 List of # in order from high
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system of transmission method of which is supported by telecommunications cabling such as 100base-Tx Ethernet or digital voice over IP. 2. Unshielded twisted pair – Twisted pair cabling is a type of wiring in which two conductors are twisted. 3. Shielded twisted pair – Twisted pair cabling is a type of wiring in which two conductors are twisted 4. Fiber optic cable – a cable made of optical fibers that can transmit large amounts of information at the speed of light. 5. Dark fiber – Dark
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today‚I……………………..boxes since morning. a)have packed b)am packing c)have been packing 2.She is an excellent journalist.A top newspaper……………………her an important job. a)has offered b)is offering c)offers 3.Jane can’t come.Her car …………………..down. a)has been breaking b)breaks c)has broken 4.If you don’t study‚you……………….pass your exams. a)won’t b)aren’t c)will 5.I……………………a party on Saturday.Would
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Activity 1: Electrical Stimulation 1. Do you see any kind of response on the oscilloscope screen? NO 2. What was the threshold voltage‚ or the voltage at which you first saw an action potential? 3.0 V 3. How does this tracing compare to the one that was generated at the threshold voltage? The tracing travel in the same fashion but the tracing were different with an increase threshold voltage 4. What reason can you give for the change? Increase voltage 5. Record this maximal voltage here:
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Controlled Assessment – Additional Science / Physics ISA PU2.x Friction (Specimen) For use from May 20xx to April 20xx Teachers’ Notes This ISA relates to Additional Science / Physics Unit 2: P2.1.3 Forces and braking A vehicle’s braking distance can be affected by adverse road and weather conditions and poor condition of the vehicle Overview Candidates should: • develop hypotheses and plan practical ways to test them • make risk assessments and manage risks when carrying out practical
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Pragmatics Exercises (Source: Fromkin & Rodman’s 1998 edition of An Introduction to Language (6th ed.)) Task I: The following sentences make certain presuppositions. What are they? (The first one has been done for you!) 1. The police ordered the minors to stop drinking. Presupposition: The minors were drinking. 2. Please take me out to the ball game again. Presupposition: 3. Valerie regretted not receiving a new T-bird for Labor Day. Presupposition: 4. That her pet turtle ran away made Emily very
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