There are two classes of membrane transport proteins—carriers<span> and </span>channels<span>. Both form continuous </span>protein<span> pathways across the lipid bilayer. Whereas transport by </span>carriers<span> can be either active or passive, solute flow through </span>channel proteins<span> is always passive.</span>
Answer:
panic disorder
Explanation:
The complete question is as follows:
John has sudden attacks of intense fear in which he experiences palpitations, he feels dizzy, and he has trouble catching his breath. During these attacks, he worries that he is going to die. From this description, it sounds like John has _____.
A. Schizophrenia
B. obsessive-compulsive disorder
C. panic disorder
D. generalized anxiety disorder
- When a person experiences repeated panic attacks then the person is said to suffer from panic disorder.
- During a panic attack the person experiences the following symptoms :
- palpitations
- sweating
- shaking
- numbness
- shortness of breath
- Panic attacks may be caused due to different reasons such as past abuse, smoking, etc.
- it is a form of extreme anxiety.
- Since John is displaying the symptoms as stated above he is suffering from panic disorder.
Sociology is the study of society
I think the correct term would be carbon dioxide. When a person removes co2 from the lungs by exhaling, the person also removes carbon dioxide from the blood. As the blood flows in the lungs, carbon dioxide would pass out from the blood and by diffusion to the alveoli. Then, by exhaling it is removed from the the lungs.