Answer:
False doesn't arrive I your ( large intestine)
The complete question is :
Which of the following best describes how ACh changes the ion permeability of the sarcolemma?
A) ACh activates acetylcholinesterase.
B) ACh entry into the axon terminal causes neurotransmitter release.
C) ACh binds to receptors in the junctional folds.
D) ACh entry into the muscle fiber causes Ca2+ to be released by the sarcoplasmic reticulum.
Answer:
C) ACh binds to receptors in the junctional folds.
Explanation:
Sarcolemma is the term used for the cell membrane of the skeleton muscle fiber cell.
At the motor end plate, there are several folds present in the sarcolemma that are known as junctional folds.
These junctional folds have several acetylcholine (Ach) receptors present on them and these are ion channels that are chemically gated.
These ion channels open upon binding of Ach and thus, the ions can diffuse into the sarcolemma.
Thus, the binding of Ach on the receptors located in the junctional folds increases the ion permeabiltity of the sarcolemma.
Answer: e. All of the above
Explanation:
The primary productivity (photosynthesis) can be define as the total production of organic matter in the form of carbohydrates from available atmospheric carbon dioxide and water in the presence of sunlight, appropriate temperature, and nutrients by the plants or other autotrophs. The life on earth sustains due to primary productivity as the plants prepare their own food and these plants are consumed by the animals and other living beings.
On the basis of the above description, all of the above is the correct option. As plants or other autotrophs will not be able to synthesize their food in the absence of nitrogen (nutrient) obtain from the soil, light, temperature, and water.
"Humans do not have gills as fish do, but human embryos have gill slits, suggesting humans and fish share a common evolutionary ancestor" is the one among the following that <span>provides the best example of how comparative embryology supports the theory of evolution. The correct option among all the options that are given in the question is option "C". </span>
Answer:
C
Animals have a mitochondria, a nucleus, and a cell membrane, bu they do not have chloroplasts. You can only find chloroplasts in human and plant cells, not a animal's cell. Hope it helps!