1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tatiyna
3 years ago
10

What is the general process in which molecules move from an area of higher concentration to an are of lower concentration is cal

led?
Health
1 answer:
Andrews [41]3 years ago
6 0
The process is called diffusion, and it requires no energy input.
You might be interested in
how does an emotional barrier stop a person who needs help and support medically from accessing it help
ZanzabumX [31]
Because of their pride, anger issues, and anxiety comes in the way that prevents that from seeking the help they need
8 0
3 years ago
what is the difference between legal psychoactive drugs (caffeine, nicotine, marijuana, otc medications), prescription, psychoac
Snowcat [4.5K]

Answer:

hope this help

Explanation:

Caffeine vs Nicotine

Caffeine and nicotine are two of the most commonly abused drugs in various forms. While coffee is the substance (read beverage) that is consumed by people as an energy drink that contains caffeine, the most popular source of nicotine intake is cigarette. Both drugs have effects that are described differently by those who are used to them. However, ask a person and he will tell that he takes coffee to get energy and to stay alert. The same cannot be said about nicotine as the effect dies down in course of time and body develops a dependence upon it. This article attempts to find out the differences between these two drugs to create awareness among people.

There is no doubt that our bodies have no natural requirement of either nicotine or caffeine. What starts as a fad or pleasure becomes a habit addiction hard to leave as both nicotine and caffeine have withdrawal symptoms and people find it hard to give up on these substances. Despite harmful effects when taken in high doses, both drugs are legal, and whereas nicotine is available for adults only, there is no such binding in the case of caffeine and even minors can take it. Though both chemical substances are also available in their raw forms, people prefer to take them in products such as coffee, cigarette, cigar, tea, and some other health drinks. Both nicotine and caffeine are alkaloids that come from plant sources.

While nicotine is produced from tobacco plant and is found in cigarette packs and cigars easily available in the market, caffeine is produced from coffee plant and sold openly in the form of coffee powder and tea bags in all parts of the world. Plants of tea and coffee developed this substance to ward off predators, but human beings use caffeine for pleasure and addiction.

The scientists who separated nicotine from the tobacco plant thought of the substance as a poison and did not realize that their invention would one day become an addiction and habit for millions of human beings in all parts of the world. Synthesis of nicotine from tobacco plant was done by Heinrich Posselt and Karl Ludwig Reimann in 1828 in Germany. However, tobacco plant was earlier used by human beings for medicinal purposes.

It is interesting that caffeine was also separated from coffee plant around the same time nicotine was separated in Germany. It was in 1820 that German scientists produced caffeine from coffee plant. Caffeine is found in many plants naturally as a natural pesticide which is an attempt by plants to save themselves from predators.

Summary

While caffeine, can lead to mental alertness and helps in remaining awake once in a while, increasing the dose or taking it regularly many times can cause jitteriness and nervousness. It can also cause upset stomach and headaches. There is difficulty in concentrating contrary to popular misconception that one gets concentration after a cup of coffee. In some people, it hinders with regular sleep and increases heart rate and blood pressure.

Nicotine is certainly more dangerous than caffeine as regular intake over a period of a few years can cause many ailments or at least lead to symptoms that need medical attention. What is bad about nicotine is that initially it provides a kick that is very pleasurable but once a person becomes habitual, he needs a higher dose to get the same kick. This goes on and a stage comes when consumption does not give any kick and it is merely required by the blood of the person which has the presence of nicotine in it. Nicotine stimulates when it is consumed and also acts like a relaxant. It releases adrenaline and increases the metabolic rate of a person. Excessive intake of nicotine leads to cancer of lungs and high blood pressure, both of whom are silent killers.

4 0
3 years ago
Any two differences between safety and first aid​
polet [3.4K]

Answer:

Safety can be defined as the control of recognized hazards to achieve an acceptable level of risk.

First aid is the first and foremost treatment given to the victim of sudden accident or injury.

hope this helps

have a good day :)

Explanation:

5 0
3 years ago
Read 2 more answers
Marci has just finished the prerequisites needed to enter a nursing program in the fall, but she realizes that she no longer wan
Dovator [93]

Answer: Sunk Cost fallacy

Explanation:

The sunk cost can be defined as the cost that has already been incurred and cannot be refunded back. It is in contrasted to the prospective costs which are the costs of future and that can be saved if any action is needed.

The economist argue that the sunk cost has nothing to do with the future rational decision making.

The example of such situation is fees which is once spent is generally not refunded.

5 0
3 years ago
The day-to-day choices people make can help prevent type 2 diabetes. For those who have diabetes, there are lifestyle guidelines
algol13

Answer:The first, second, fourth, fifth statements apply..

Explanation:

Exercises and healthy foods help prevent type 2 diabetes

Type 1 is a genetic autoimmune disorder and so isn't always prevented by weight loss.. Those patients tend to be thin

7 0
3 years ago
Other questions:
  • Help!! What do I do if a popcorn kernel is all the way up my gums and I can't feel it?
    11·1 answer
  • Why can't humans drink salt water for hydration?
    7·2 answers
  • I'm males, which of the following organ performs a dual function of ejaculation of sperm and voiding of urine?
    12·1 answer
  • Philip is having an argument with Roger about a job assignment for which they are both responsible. Philip, who spends much of h
    8·2 answers
  • exposed to noise pollution for extended period of time can cause sleepiness and high blood pressure. true or false?
    13·2 answers
  • The period of transition between childhood and adulthood is called:
    6·2 answers
  • Help baseball questions!
    6·1 answer
  • When was health ,population and environment education include in secondary level in nepal​
    8·2 answers
  • When is a game over? A. When both teams score B. When there is a tie C. When the time runs out D. When the referee decides the g
    12·2 answers
  • Calories are expended through which of the following?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!