Answer:
Neurotransmitters are released from axon terminals via exocytosis
Explanation:
Dendrite is the receiving part of the presynaptic neuron, while axon is the transmitting part of the neuron. So, after initiation, action potentials travel down axons to the terminals. Action potential travels through the membrane of the presynaptic cell causing the voltage-gated channels permeable to calcium ions to open. Ca2+ flow through the presynaptic membrane and increase the Ca concentration in the cell which will activate proteins attached to vesicles that contain a neurotransmitter (e.g. acetylcholine). Vesicles fuse with the membrane of the presynaptic cell, thereby release their contents into the synaptic cleft-space between the membranes of the pre- and postsynaptic cells (exocytosis of the vesicle's content). Neurotransmitter ACh (from the vesicles) binds to its receptors on the postsynaptic membrane and its binding causes depolarization of the target cell (muscle cell). Depolarization occurs because sodium enters the cell as a result of neurotransmitter receptor binding.
<u><em>Photosystem I</em></u> is found in the membrane facing the inside of the grana and <u><em>Photosystem II</em></u> is found in membrane facing the stroma
Answer:
Cellular respiration is a metabolic pathway that converts nutrients into energy (ATP) that organisms need to live. ... The oxygen you breathe is used to break down the nutrients you consume through food in order to make ATP, while carbon dioxide and water are generated as waste
Explanation:
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Answer:
Mendel worked with pea plants showing complete dominance for various characteristics
- E.g. flower color, plants either have purple flowers or white flowers
- A particular genotype produces a recognizable phenotype
