What happens if tryptophan levels are high? Put the following list in order (1-4). | The trp repressor-tryptophan complex can now bind to the operator of the trp operon | | Tryptophan does not need to be produced by the trp operon | | Tryptophan will bind to the repressor protein, changing its conformation
Methamphetamine use shows how drugs can alter neurotransmitter function and thus perception of reality. Their
RSQC2 Worksheet Directions: Fill in the blanks below. Identify the following parts of a neuron (need an image): (dendrites, axon, terminal buttons, myelin sheath) Dendrites: The cluster of fibers at one end of the cell body that receive messages from other neurons. Axon: The slim, tube-like extension of the cell body that carries messages from the dendrites to other neurons. Terminal buttons: The small bulges at the end of the axon which send messages to other neurons. Myelin sheath: A protective coating of fat and protein that insulates the axon.
Agonist or Antagonist Agonist or Antagonist Agonist because it mimics the effect of endorphins and increases the release of dopamine and also stimulate the opioid receptors Agonist because it mimics the effect of endorphins and increases the release of dopamine and also stimulate the opioid receptors * The heroin is converted to morphine by enzymes; the morphine binds to opiate receptors in certain areas of the brain. * The morphine binds to opiate receptors that are concentrated in areas within the reward pathway (including the VTA, nucleus accumbens, and cortex). * Morphine also binds to areas involved in the pain pathway. Binding of morphine to areas in the pain pathway leads to analgesia (loss of pain) * The heroin
They all fall under specific categories: Stimulants, Depressants, Narcotics, Hallucinogens, and Cannabinoids. Stimulants are drugs like Cocaine, Amphetamines, and PCP but the main stimulants are Cocaine and any Amphetamine like Crystal Meth. Depressants are drugs like Valium, Alcohol, and Barbiturates. Drugs like Opium, which is related to Heroin, Morphine, Codeine Oxycodone, and Vicodin are all considered as Narcotics. Hallucinogens are drugs such as LSD, Mescaline, DMT, MDMA and Ketamine.
Marijuana comes from the preparation of the female plant of Cannabis sativa. The primary psychoactive constituent is delta-9-tetrahydrocannabinol
Substance misuse & drugs awareness level 3 TMA1 Page No. 1 1.1 There are various definitions of the term drug. For the purpose of this assignment I will use the one found in the Collins dictionary (2010) (1) which states, ‘Substance used in the treatment or prevention of disease; Chemical substance, esp. a narcotic, taken for the effects it produces’. The term ‘drug’ includes both legal and illegal forms, ranging from the commonly used caffeine to the frowned upon heroin.
After the neurotransmitters stimulate the receptors on the receiving neuron, excess chemicals are taking back up into the sending neuron to be used again (lecture). The reason that cocaine can induce euphoric rush is because it keeps dopamine,
The use of intravenous method is mainlining or injecting. This is the process when a hypodermic needle is used to inject cocaine directly into the bloodstream. When chewing cocaine, it can be taken as a tea or black coffee. This method seems to bring out a distinct “warmness” in the stomach. Snorting cocaine
These drugs are depressants and include GHB, Rohypnol, and ketamine. | | | | depressants | are drugs known as sedatives. They slow down the CNS, relax or tranquilize, and produce sleep. | | | | drug | is a chemical that alters a person's physical or mental condition. | | | | ephedrine (ephedra) | also known as ma huang, is an amphetamine-like drug called ephedra found in OTC herbal supplements.