Q you are given the isolated skeletal muscle with its motor

Assignment Help Biology

Reference no: EM13352514

Q. You are given the isolated skeletal muscle with its motor neuron intact. This preparation is arranged so that you are able to make electrophysiological measurements from the nerve and the muscle as well as mechanical measurements of muscle contraction. You view that if caffeine is added to the fluid bathing the preparation, the peak tension developed in a muscle twitch produced by stimulating the motor nerve is increased.

i. List all probable points at which caffeine may be exerting its effect.

ii. Caffeine is known to alter the transmembrane movement of calcium. What is (are) the possible site(s) at which caffeine is acting?

iii. High concentrations of caffeine cause an isolated muscle to contract in absence of any activity in the motor nerve. This contraction is not blocked by nicotinic antagonists like curare. Where and how is caffeine exerting its effects?

Reference no: EM13352514

Questions Cloud

Q1 what limits the size of an animal also what is the : q1. what limits the size of an animal? also what is the importance in their habitat being either terrestrial or

Q1 if you were asked to create a karyotype from the : q1. if you were asked to create a karyotype from the chromosome spreads you made from hela cells in activity 4.2.1 list

Q a standard procedure in purifying tubulin is to extract : q. a standard procedure in purifying tubulin is to extract tissue on ice after that add gtp and warm the tissue extract

Q1 charlie has the blood test that shows a normal level of : q1. charlie has the blood test that shows a normal level of ldls other than an elevated level of hdls in his blood.

Q you are given the isolated skeletal muscle with its motor : q. you are given the isolated skeletal muscle with its motor neuron intact. this preparation is arranged so that you

Q healthy individuals of paramecium bursaria contain : q. healthy individuals of paramecium bursaria contain photosynthetic algal endosymbionts of genus chlorella. when

Q1 angel is a biologist studying lake ecosystem in which : q1. angel is a biologist studying lake ecosystem in which leaf-eating insects are consumed by fish which are consumed

Q1 an amateur horse breeder has acquired four new : q1. an amateur horse breeder has acquired four new bay-coloured mares female horses with uncertain pedigree. what are

Q1 barbara mcclintock famous for discovering that genes : q1. barbara mcclintock famous for discovering that genes might move within genomes had her meticulous work ignored for

User Account

All Pages