Exercise 2: Skeletal Muscle Physiology: Activity 2: The Effect of Stimulus Voltage on Skeletal Muscle Contraction Lab Report Pre-lab Quiz 1. Skeletal muscle fibers are innervated (stimulated) by c. motor neurons. 2. A single action potential propagating down a motor axon results in d. a single action potential and a single contractile event in the muscle fibers it innervates. 3. In resting skeletal muscle‚ calcium is stored in c. the sarcoplasmic reticulum. 4. During the latent period
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Activity 1: 1. Did any solutes move through the 20 MWCO membrane? Why or Why not? 2. Did Na+Cl- move through the 50 MWCO membrane? Activity 2: 1. Are the solutes moving with or against their concentration gradient in facilitated diffusion? 2. What happened to the rate of facilitated diffusion when the number of carrier proteins was increased? 3. In the simulation you added Na+Cl- to test its effect on glucose diffusion. Explain why there was no effect. Activity 3: 1. Which membrane resulted
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HOW TO WRITE AN UNKNOWN LAB REPORT IN MICROBIOLOGY GENERAL Unknown reports in microbiology are written in scientific format. Scientific writing is written differently from other types of writing. The results of the exercise or experiment are what are being showcased‚ not the writing. The purpose of scientific writing is not to entertain‚ but to inform. The writing should be simple and easy to understand. There is a specific style that must be followed when writing scientific reports.
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Homeostasis and Exercise Lab Living Environment/Lab #7 Ms. Iadanza December 2012 Problem: How does exercise affect a person’s heart rate‚ breathing rate‚ and perspiration level? Background Information: Homeostasis is the maintaining of a balanced condition in the body despite changing external conditions or demands on the body. The circulatory system works with the respiratory system in order to deliver nutrients to the body’s cells. The respiratory system is made of the mouth and
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Exercise 1 Cell Transport Mechanisms and Permeability Name ____________________________________________________________ Lab Time/Date ______________________________ Activity 1 Simulating Dialysis (Simple Diffusion) 1. Describe two variables that affect the rate of diffusion. * The size of the pores of the membrane * The size of the molecule diffusing through the membrane 2. Why do you think the urea was not able to diffuse through the 20 MWCO membrane? How well did the results
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NAME Week 2‚ Exercise 1 November 16‚ 2014 XACC/290 Week 2‚ Exercise 1 (a) 1. Stockholders invested $20‚000 cash in the business. 2. Purchased equipment for $5‚000‚ paying $1‚000 in cash and the balance of $4‚000 on account. 3. Paid $750 in cash for supplies. 4. Earned $9‚500 in revenue‚ receiving $4‚100 in cash and $5‚400 on A/R. 5. Paid $1‚500 in cash on accounts Payable. 6. Paid $2‚000 in cash dividends to stockholders. 7. Paid $800 in cash as expenses (rent). 8. Earned $450 in cash from
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allows for minimal errors and mistakes that could‚ if not‚ contribute wrong readings and conclusions. In testing for the calibration of speed‚ the values in trial 1‚ 2 and 3 were very similar to the adjusted level of speed on the treadmill. The speed level in trial 1 was 1.0 mph‚ which yielded a measured value of 1.06 mi/hr. Trial 2 was 3.0 mph‚ which yielded 3.2 mi/hr and tiral 3 was 4.0 mph‚ which yielded 4.3 mi/hr. Although the measured values yielded a few points off‚ the test was still valid
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Unit 2 lab 1: common linux commands 1. try giving the following commands and observe the behavior with each combination of options and arguments. A. list the names of the files in the working directory Is. Desktop Documents Downloads Music Pictures Public Templates Videos B. by default‚ Is does not list files that have hidden filenames 9filenames that begin with a period; Sobell‚ page 190). List the names of all files in the working directory‚ including those with hidden file names. Is
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fragments are the short lengths of DNA formed between RNA primers on the lagging strand Ligase is the linking enzyme that seals breaks in the DNA by creating a phosphate-sugar bond. DNA ligase has three (3) main functions: 1. joining Okazaki fragments‚ 2. sealing repairs‚ 3. sealing recombination fragments Diagram of Role of DNA Ligase in DNA Replication Role of mRNA in Transcription & Translation mRNA “copies” the message or the information from DNA mRNA then
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Collection‚ Observation‚ and Analysis of Microorganisms in the human environment Introduction The necessity and value of collecting‚ identifying‚ and analyzing the various microbes regularly encountered in the daily human environment becomes quite apparent when one gains even
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