It's not that we have receptors for plant chemicals, but that we have receptors for chemicals that are similar to ones found in certain plants. So when someone found the effects of smoking weed, it was a matter of time before genes that promote such behavior is favored among weed smokers. Richard Dawkins's The Extended Phenotype clearly applies in this case. I also recommend The Selfish Gene if you've any questions about evolution.
Egg cells have receptors on their surface that can bind to chemicals like sperm. These receptors help facilitate the process of fertilization by allowing the sperm to attach to the egg cell.
Gustatory receptors are also present in the mouths of animals. These are novel proteins which are able to recognize a variety of chemicals.
nuerotransmitter
Sensory impulses at receptors are typically stimulated by specific environmental stimuli such as light, sound, touch, temperature, or chemicals. These stimuli activate specialized receptors on sensory neurons, which then generate neural signals that are transmitted to the brain for further processing and interpretation.
Proprioceptors are the type of receptors that help determine the weight of an object when you pick it up. These receptors are located in our muscles and joints, and provide feedback to our brains about the position and movement of our body parts.
sensoria
No, brains do not feel pain because they lack pain receptors.
No, plant life does not have brains.
taste buds and nose
taste buds and nose
Egg cells have receptors on their surface that can bind to chemicals like sperm. These receptors help facilitate the process of fertilization by allowing the sperm to attach to the egg cell.
Cell surface receptors are stimulated by outside chemicals, such as hormones or neurotransmitters, which in turn trigger the cell to carry out specific functions. The binding of these chemicals to the receptors initiates a signaling cascade within the cell that leads to various cellular responses.
Different plant species may have varying levels of sensitivity or receptors that can recognize certain chemicals. Additionally, the biochemical pathways and signaling processes in plants can differ, making it difficult for a chemical from one species to elicit a response in a different species. Lastly, the evolutionary history and ecological niche of each plant species can also impact their ability to respond to chemicals from other species.
guts mucus and brains
test tube, brains, beakers, chemicals
Gustatory receptors are also present in the mouths of animals. These are novel proteins which are able to recognize a variety of chemicals.
No ways for brains. Sorry. But for gold plant your crops and change the time.