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Problem 1: (Muscle Physiology)Muscle stimulation could be initiated by directly passing an action potential overmyofibers but the body does not do use this mechanism to initiate contraction.
a)Why?
b) How does it use action potential to cause contraction?
c) Why is the bipolar alignment of myosin so important for muscle contraction?
1. The pka values of a compound with two ionizable groups are pk1=4.10 and pk2 between 7 and 10. We have 10 mL of a 1.0 M solution of this compound at a pH of 8.0. She adds 10.0 mL of 1.0 M HCL, which changes the pH to 3.20. What is pk2?
I don't understand how action potential works and how this electrical impulse moves along the myelenated sheath and triggersthe release of a neurotransmitter.
semicconscious man taken to hospital after falling from roof. He did not lsoe consciousness immediatley, and wa initially alert. After a bit he became confused and then unresponsive. What is a likely explanantion of condition.
q1. the research team established similar lymphocyte cultures from a number of human donors including healthy teenagers
Which of the following properties are not shared between facilitated diffusion transporters and "pumps"?
Rhodopseudomonas is and anareboic photoautotroph that is uses organic compounds as an electronic donor It is also capable of chemoheterotophic metabolism diagram the metabolic pathways of the bactreium
Where does most of the energy comes from thatfuels ocean life?
A 4 year old boy falls on a rusty nail and punctues his skin. The wound is cleaned and covered with sterile gauze. Which of the following is the initial events in the healing process.
If anuncompetetive inhibitor (KI= 5 X 10-7 M) is added to aconcentration of 1 X 10-5M in a reaction with an enzyme whoseKm = 2 X 10-2 and with a substrate concentration of 2 X10-2 M, what percentage of enzyme activity willremain?
which nucleotide sequences represents complement to DNA
Only 10% of genes in animals are devoted to the construction of body plans, yet there exists a huge amount of diversity in body plans of animals. how has the evolution of various body parts and patterns evolved?
For the tetraploid cross: AAAA x aaaa, what genotypes would be found in the offspring and in what proportions?
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