All of the following is true regarding the cell (plasma) membrane Except:

a) It has amphipathic transmembrane protein

b) It contains glycolipids and glycoproteins

c) it has large pores to accommodate RNA movement in and out of the cell

d) the proteins can float in the membrane

e) cholesterol is in the membrane to increase the membrane’s fluidity

2) If you want to form protein from individual amino acids, you would

a) dephosphorylate the amino acids

b) use a negative feedback loop

c) add water between the adjacent amino acids

d) phosphorylate the amino acids

e) remove water from between adjacent amino acids

Describe the steps of excitation-contraction coupling and the role of calcium in this process.

Describe how the motor unit causes neurotransmitter release from the synaptic bulb at the neuromuscular junction.

Which of the following can generate IPSPs?

a) GABA (Gamma aminobutyric acid)

b) epinephrine

c) norepinephrine

d) dopamine

e) TRH (thyroid releasing hormone)

All of the following are true neurotransmitters in the class of catecholamines Except:

a) they can increase heart rate

b) they create EPSPs

c) they may be degraded by catechol-O-methyltransferase (COMT)

d) they may bind to dopanergic receptors

e) they decrease the perception of pain

A cell that has a diploid number of 6 chromosomes has 3 chromosomes lined up in the center of the cell, each chromosome containing two joined sister chromatids. What phase of the cell cycle is this cell in?

a.Metaphase I of meiosis

b.Metaphase II of meiosis

c.Metaphase of mitosis

d.Telophase I of meiosis

Explain the answer please..

Predict what will happen to the following lung volumes and capacities during strenuous exercise. Assume that you are comparing from a baseline of normal resting respiration.

WITH EXPLANATION PLEASE

Topic: Neuroscience

1. (a) How do neurons communicate with each other? What is this process called? Explain in detail how information from one neuron gets passed on to another and do not leave out any stages in this process.

Key words you must use in your explanation: synapse, post and pre-synaptic neuron and their structures, vesicles, neurotransmitters, receptors, excitatory and inhibitory.

(b) In the beginning of our lecture on neuroscience, we discussed a quote from Hippocrates that summarizes the neurosciences perspective on the human mind. Please explain the main message or “essence” of this quote. Is Hippocrates a monist or a dualist?

Essay: Susie was hospitalized because she cut herself in an accident. Susie cut her nerve that supplies a muscle in her arm. Please explain to Susie because she is having a difficult time understanding why her muscle doesn’t work if she cut her nerve. You can do so by writing an essay on skeletal muscle excitation and contraction. You should be very detail and descriptive when explaining. Your essay should include and not be limited to the following events:

- describe excitation of the muscle fiber and the events at the neuromuscular junction starting with the release of the neurotransmitter to all the possible things that can occur to or from it

- generation of an action potential

- propagation along the sarcolemma

- the events that lead to the release of “certain” ions

- the events that take place inside the cell which lead to excitation contraction coupling and cross-bridge cycling in detail.

6. Nicotine is a vasoconstrictor. What would you expect to happen to the blood pressure of a chronic cigarette smoker? Explain your answer.

7. Does a person with a very high post-exercise heart rate have a high or low oxygen debt?

Discuss the Anatomy of the Heart.Please explain to me every single step in detail because I don't understand. Thank you!

Trace the path a molecule of water will travel from the renal artery to the toilet bowl. Indicate the blood vessels, Nephron structures, Kidney structures the water molecule will travel through.

Do you believe it is possible for us to predict the actions and behaviors of another person based on their brain's structure and function?

Each person will elaborate on this differently. For example, you might choose to answer this question in regards to someone who has Parkinson's Disease, a brain tumor growing in the amygdala, retrograde amnesia, schizophrenia or has the brain of an 8 year old. Be creative! Try to use as much neuroanatomy and physiology as you can. Response must be a minimum of 150 words.

18). Explain the events that occur in sequence from when an efferent (motor) neuron releases ACh to the motor end plate of a skeletal muscle cell until calcium ions contact troponin.

19). Describe the differences between muscle atrophy & muscle hypertrophy & give at least two (2) causes for each condition.

20). Describe four (4) causes of skeletal muscle fatigue.