Assesment 2 (Drugs And Plant Nutrition)

Question 1

What is the definition of drugs?

Answer 1

Any substance that when ingested/injected in the body will affect or modify chemical reactions occurring in the body itself

Question 2

How can drugs be used?

Answer 2

Drugs can be used in good or bad ways some drugs ave used as medicines (e, g antibiotics) Taking exessive medicines without doctor’s precription can also give negative effects on heath!

Question 3

Why do some people misuse drugs?

Answer 3

However, lots of drugs are misused by people for enjoyment which causes adverse effects on health. Some examples of these drugs are cannabis.

Question 4

What are stimulants?

Answer 4

Stimulants are drugs that promote and speed up the action of the nervous system.

Some examples are:
1. Caffeine
2. Amphetamines
3. Nicotine

Question 5

What are depressants?

Answer 5

Depressants slow down the action of some part of the nervous system. Makes you less anxious and sleepy. Overuse of these drugs can make you dependent on them.

Some examples are:
1. Barbiturates
2. Alcohol
3. Cannabis

Question 6

What are narcotics?

Answer 6

Narcotics act like depressants but primarily affect the brain. They work as pain-killers but bring about a feeling of drowsy well being or euphoria

One example is heroin.

Question 7

What are analgesics?

Answer 7

Analgesics are mild painkillers and are one of the most used medicines.

Examples are:
1. Aspirin
2. Paracetamol

Question 8

What are the different types of drugs?

Answer 8

1. Stimulants
2. Depressant
3. Narcoses
4. Analgésies

Question 9

What are medicinal drugs?

Answer 9

Medicinal drugs are important for treating diseases. Not all drugs are medicinal.

Examples are:
Aspirin and paracetamol

Question 10

What are antibiotics?

Answer 10

Antibiotics kill bacteria but do not harm normal living cells. They are made from fungi.

Question 11

Why don’t antibiotics work on viruses?

Answer 11

Antibiotics do not work on viruses because viruses are very different from bacteria in structure and how they function. Viruses do not have cell walls that can be targeted by antibiotics.

(Instead they are surrounded by a protective protein coat.)

Question 12

What are the effects of antibiotics on bacterial infections?

Answer 12

Some bacteria become resistant to antibiotics overtime to prevent this from happening. It is important to only use antibiotics when it’s essential as well as completing the entire course. 

Question 13

Describe the viral motive action

Answer 13

Like bacteria which attacked your body self from the outside, viruses actually moved into and live in your body cells and make copies of themselves. Viruses can’t reproduce on their own instead they attach themselves to healthy cells and reprogram them to make new viruses.

Question 14

Describe the viral motive action

Answer 14

Like bacteria which attacked your body self from the outside, viruses actually moved into and live in your body cells and make copies of themselves. Viruses can’t reproduce on their own instead they attach themselves to healthy cells and reprogram them to make new viruses.

Question 15

Give examples of legal and illegal drugs

Answer 15

Legal drugs: nicotine, and alcohol
Illegal drugs: amphetamines, and cannabis

Question 16

What are the characteristics of alcohol?

Answer 16

I’ll call is a powerful depressant on the body. It slows down signals in the nerves and brain.

It increases reaction time

Deliver removes alcohol from the blood stream

It has enzymes breakdown alcohol, but the product of the reactions are toxic and overtime. The liver can be irreplaceably damaged.

Question 17

Effects of alcohol

Answer 17

Short term:
Vomiting - alcohol is toxic to the body and this is the quickest way to get rid of it

Impaired judgment and potentially violent behavior

Impaired balance and muscle control

Sleepiness once consumed in large enough quantities

Long-term effects:
Damages the brain, causing memory loss and confusion

Damages, the liver resulting in, cirnosis

Question 18

Characteristics of heroine abuse

Answer 18

reduces pain and slows breathing. it’s highly addictive and uses quickly develop a tolerance for it. Meaning they need larger and larger amounts in order to get the same effect. This increases the risk of overdosing which causes death.

Question 19

Heroin effects on synapses

Answer 19

The sign-up is a site of transmission of electric nerve impulses between two nerve cells heron binds with the receptors which are normally sensitive to natural neurotransmitters

Question 20

How does heroin affect the nervous system?

Answer 20

The neurotransmitters diffuse across synapses and fit into receptor molecules on the postsynaptic membrane. (one group of neurotransmitters is called endorphins which help reduce sensation of pain affect mood and reduce sensation of hunger and thirst) When it enters, the brain heroine is metabolize to morphine morphine is a molecule fit in some of the endorphin receptors and this is why taking her makes you feel good.

Taking heroine can reduce the production of natural endings and other neurotransmitters, which is why repeated us leads to the need for greater amounts in order to get the same feeling

Question 21

Tobacco and the gas exchange system

Answer 21

Smoking causes chronic constructive lung disease, heart diseases, and increase ricks of several different types of cancer, including lung cancer. The chemicals and cigarettes include tar, nicotine, and carbon monoxide.

Question 22

Explain tar nicotine and carbon monoxide

Answer 22

Tar is a carcinogen, a.k.a. a substance that causes cancer

Nicotine is an addictive substance which narrows red blood cells

Carbon monoxide reduces the oxygen carrying capacity of the blood

Question 23

Performance enhancing drugs in sport

Answer 23

Hormones help to control the way the body develops and response to changes some people take additional hormones to increase these effects commonly done to improve sporting performance. Testosterone is one of the hormones known as steroids, which stimulates anabolic reactions to her in the body testosterone cause more proteins to be made in muscles so they become large and stronger, therefore increasing muscle math helping athletes train harder for longer periods of time

Taking performance enhancing drugs, can increase the risk of heart disease, liver damage, kidney damage decrease ability of the immune system and affect mental cycle in women