Answer:
+1, -1, +2, -2, +3, and -3 are the answers :)
Explanation:
Answer:
+1,-1,+2,-2,+3,-3
Explanation:
Answer:
The scanning electron microscope allows the elaboration of an image in which the surface characteristics of the sample are reflected, thus providing sufficient information on the shapes, textures, and chemical composition of the constituents.
Explanation:
The scanning electron microscope uses electrons instead of light for imaging.
To achieve this, the team has a device that produces an electron beam that allows the entire sample to be illuminated and, through different detectors, the electrons that are produced from the interaction with the surface of the sample are later collected.
b) Potassium (K+) concentration is higher outside the cell, and sodium (Na+) concentration is higher inside the cell.
c) Potassium (K+) and sodium (Na+) gradients are maintained by active transport in a resting mammalian neuron.
d) Neurons are the only cells that have a charge difference across their membranes.
Answer:C
Explanation:
Resting Membrane Potential (RMP) is the charge difference represented as voltage difference across a nueronal cell membrane at rest.
It has a value of -50 and -75mV.
Graphically it represents the flat plateau at the last part of the curve of action potential (check the attachments)
In a normal resting cell after Action potential ;for example nuerone,the intercellular layer has more potassium ions, while the extracellular layer has more Sodium ions .
These ions have special channels called sodium and potassium channels for movement in and out of these ions by active transports.
The movements of these ions across the membranes generated electrical potential difference for action potential.
Breathing trouble
Cancer
Respiratory infection
Answer:
The correct answer is option , Breathing trouble
Explanation:
Opioids are narcotics that are prescribed by doctor during surgeries but addiction to its continued usage may result into weakening heart beats and slow breathing. The breathing issue arises when specific opioid receptor in the central nervous system (CNS) gets activated thereby affecting the respiratory rhythm. The respiratory rhythm in the CNS is controlled by pre-Bötzinger complex. Opiods also affects the functioning of lungs by slowing down its expansion and contraction mechanism .
I believe the correct answer is breathing trouble
Opioids are a group of molecules that produce an analgesic effect during pain and can be misused as drugs for a "good feeling." Just like any other drugs, they have to bind to receptors in order to produce an effect by entering into a cell and causing a chemical reaction. The specific receptors are called mu receptors in the brain.
The mu receptors are located in the brain and they line up to the hind part of the brain where there are sites called pons that function to control the autonomous nervous system that is responsible for involuntary activities like breathing and heartbeat. A good example of an opioid that is used for medicinal purposes is morphine that binds to its receptors to prevent the brain from recognizing pain. In the pons that control the autonomous nervous system, there is a complex called pre-Bötzinger complex that has the μ receptors for the opioids extensively. When a person takes the opioids, they attach to their receptors in order to produce an effect by acting as antagonists (opposing) to the pain molecules in blood. In so doing, they also antagonize the nerve cells that are found in the pre-Bötzinger complex. The end result is a suppressed autonomous nervous system. The lungs will have a problem expanding and relaxing, the heart rhythm will be irregular and the person if not given assistive care, may lose consciousness due to lack of oxygen supply to the brain. Cancer is a condition that is caused by alterations to the genetic material in an organisms causing cells to replicate uncontrollably. Respiratory infections are conditions where microorganisms enter into the tract and impair their functioning for example Streptococcus pyogenes bacteria entering your throat causing the condition called sore throat.
Level: High School
Subject: Biology
Topic: The brain