i need help with some biology questions Please help 1. The neurotransmitter rele

Question

i need help with some biology questions

Please help

1. The neurotransmitter released from pre-synaptic nerve ternminal in a motor neuron is:
a. acetylcholine
b. acetylcholinesterase
c. dopamine
d. epinephrine

Is the answer for this one a.


2. Transver (T) tubules are:

a. part of the sarcolemma
b. invagianation of the muscle cell membrane
c. surrounded by two terminal cisternae of the sarcoplasmic reticulum to form a triad
d. all of the above


3.which energy source can only form enough ATP to last about 8-10 seconds

a. cretine-phosphate
b. kreb;s cycle
c. glucoysis
d. electron transport chain

4. which of the following joint disorder is caused by an autoimmune disease
a.osteoarthritis
b. rheumatoid arthritis
c. gout
d. hallux valgus

5. which of the following joints categories are ranked from most moveable to leat moveable
a. cartilagenous, fibrous, synovial
b. synovial, cartilagneous fibrous
c. synovial, synovial, cartilagenous
d. fibrous cartilagenous, synovial

Explanation / Answer

1. Yes the answer is a. Dopamine and Epinephrine are hormones not neurotransmitters and are therefore incorrect. I'm not sure about b but I know for a fact that acetylcholine is a neurotransmitter 2. d 3. c - glycolysis only produces 2 ATP molecules as opposed to the other metabolic processes. 4. b 5. b - synovial(ex. knee, wrist), cartilagenous (ex.intervertebral discs of spinal column), fibrous (ex.sutures of the skull)

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