Answer:
1 in 4 people.
Explanation:
Research studies results.
The cytoplasm fills the cell and is surrounded by the cell membrane. :)
Answer:
Glucose
Explanation:
ATP, Carbon Dioxide, and Water are all results of Cellular Respiration and do <em>not</em><em> </em>form during Photosynthesis. These three are actually used in the process of Photosynthesis, so they are not created by it. Plants use photosynthesis to create their own glucose.
Answer:
A- Acetylcholine is released by axon terminals of the motor neuron.
Explanation:
The general mechanism of muscle contraction can be explained as follows:
a) The action potential which is generated, travels along the motor nerve to its ends on muscle fiber (or motor end plate) at the neuro-muscular junction.
b) The nerve endings then secrete small amounts of neurotransmitter called acetylcholine.
c) The actylecholine binds to the receptors on the membrane of muscle fiber and opens the voltage gated sodium channels.
d) Opening of these channels leads to flow of large quantities of sodium ions into the muscle fiber which ultimately results in initiation of action potential in muscle fiber.
e) This action potential depolarizes the fiber including the T-tubules, triggering the release of calcium ions from sarcoplasmic reticulum.
f) The calcium ions thus released initiated the process of muscle contraction.
