The statements that are true of receptor-mediated endocytosis is that It allows the internalization of extracellular substances in clathrin-coated vesicles.
<h3>What is
receptor-mediated endocytosis?</h3>
Receptor-mediated endocytosis can as well be regarded as the clathrin-mediated endocytosis, which can be explained as the process by which cells absorb metabolites as well as hormones, proteins.
It should be noted that in some cases of viruses through the inward budding of the plasma membrane, however the process of endocytosis” can be seen as one that entails both the ingestion of large particles whic could be bacteria as well as the uptake of fluids or macromolecules in small vesicles.
In conclusion, when it take in large moplecules it is known as phagocytosis (cell eating) , in receptor-mediated endocytosis , there is a room for the internalization of extracellular substances in clathrin-coated vesicles.
Therefore, the first option is correct.
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Answer:
Dopamine
Explanation:
Dopamine is an inhibitory neurotransmitter involved in the pathology of schizophrenia.
Inherited Traits are passed down and are not influenced by organism’s surroundings
Answer:
D. Calcium ions.
Explanation:
Here we are talking about the mechanism of muscle contraction. The most accepted theory of muscle contraction is sliding filament theory. It was given by Huxley and Huxley. During the process actin filaments slides over myosin filament by forming cross bridges. The sequence of events are as follows:
a. An action potential propagates through the motor nerve and reach the nerve endings on the muscle fiber at neuro-muscular junction.
b. Neurotransmitter called acetylcholine is released by the nerve endings.
c. Acetylcholine binds to the receptors on muscle fiber and opens the gated channels which causes flow of Na+ ions into the muscle fiber.
d. This influx of sodium ions initiates an action potential in the muscle fiber which reaches the T- tubules or transverse tubules. Here it causes the sarcoplasmic reticulum to release large amounts of calcium ion.
e. Calcium ions are responsible for initiating the attractive forces between actin and myosin filaments. Cross bridges are formed, actin slides over myosin causing the contraction of muscle.
I think it’s D, because the stomata lets water out when it’s open and if it’s dry the you’d think the plant would want to reduce water loss.
