The enzyme pectinase speeds up the breakdown of pectin in fruits, producing more juice. It speeds up breakdown of pectin in plant cell walls, thus creating more juice. It is also used in wine making to avoid cloudiness.
1) By human exhaling, cow exhaling, burning fires, horse exhaling, and sheep exhaling.
2) Decomposers reintroduce carbon into the environment.
3) Humans add carbon dioxide into the environment by burning fossil fuels.
i need the options in order to answer
Answer:
The correct answer will be option-E.
Explanation:
Acetylcholine belongs to a group of chemical messengers which also acts as neurotransmitters in the synaptic transmission of the signals.
The acetylcholine is present in the vesicles in the synaptic knob which when released at the neuromuscular junction cause the contraction of the skeletal muscle along with cardiac and smooth muscle.
The mechanism of action is different in different muscles as the neurotransmitter binds to the nicotinic receptors present on the motor endplate and opens ligand-gated sodium channels.
In smooth and cardiac muscle it binds to the muscarinic receptors and cause the release of calcium ions and potassium ions respectively and cause muscle contraction.
Thus, option-E is the correct answer.
The Earth is spinning on an axis, and spinning around the sun. The side not facing the sun experiences night time. The side of the Earth facing the sun experiences day time.