The Harmful Activity of Bacteria and the Structure of Monera Kingdom
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Questions and Answers

How do obligate anaerobes respond to the presence of oxygen?

Unable to grow in the presence of oxygen.

What is the structure of a prokaryotic cell?

Very small with a chromosome contained within a nucleoid, lacking a nucleus, and having a cell wall surrounded by a capsule.

What is the source of energy for autotrophic bacteria?

They use light as a source of energy for photosynthesis.

What is the type of bacteria that are saprotrophs?

<p>Heterotrophic bacteria by absorption.</p> Signup and view all the answers

What is the characteristic means of movement for some bacteria?

<p>Some bacteria move by means of flagella, and some adhere to surfaces by means of fimbriae.</p> Signup and view all the answers

What is the association of bacteria with other organisms called?

<p>Symbiotic.</p> Signup and view all the answers

What are the three main shapes used to classify bacteria?

<p>Rod (bacillus), Round or spherical (coccus), Spiral (spirillum)</p> Signup and view all the answers

What is the difference between Gram-positive and Gram-negative bacteria?

<p>Gram-positive bacteria retain a dye-iodine complex and appear purple, whereas Gram-negative bacteria do not retain the complex and appear pink.</p> Signup and view all the answers

What are some harmful effects of bacteria in humans?

<p>Bacteria are linked with cancer, responsible for food spoilage, cause allergies and chronic inflammation, can advance to the flesh and tissues, and are responsible for infectious diseases like pneumonia, tuberculosis, diphtheria, syphilis, and tooth decay.</p> Signup and view all the answers

What is the primary stain used in Gram's staining?

<p>Crystal violet</p> Signup and view all the answers

What are some bacterial animal diseases mentioned in the text?

<p>Plague, tuberculosis, pneumonia, anthrax, meningitis, and haemorrhagic septicaemia</p> Signup and view all the answers

How can bacterial diseases be prevented?

<p>Maintaining proper hygiene, timely vaccination, using surface disinfectants, cooking food properly, consuming hygienically prepared food, proper sterilisation of needles and surgical equipment, washing and sanitizing hands, avoiding unprotected sexual intercourse, and being mindful and avoiding going out in public places if infected.</p> Signup and view all the answers

Name the bacteria classification based on Gram's staining.

<p>Gram-positive and Gram-negative bacteria</p> Signup and view all the answers

What are some examples of bacterial infectious diseases mentioned in the text?

<p>Pneumonia, tuberculosis, diphtheria, syphilis, and tooth decay</p> Signup and view all the answers

What is the harmful activity of bacteria mentioned in the text?

<p>Bacterial infections can affect the skin, lungs, brain, blood, and other parts of the body, and bacteria are linked with cancer, responsible for food spoilage, cause allergies and chronic inflammation, and can advance to the flesh and tissues of the host.</p> Signup and view all the answers

How can bacterial diseases be prevented through vaccination?

<p>Timely vaccination</p> Signup and view all the answers

Bacteria are said to lack a ______

<p>nucleus</p> Signup and view all the answers

Some bacteria move by means of ______

<p>flagella</p> Signup and view all the answers

Most bacteria are ______ and require a constant supply of oxygen

<p>aerobic</p> Signup and view all the answers

Some bacteria are autotrophic by ______; they use light as a source of energy

<p>photosynthesis</p> Signup and view all the answers

Bacteria are often ______; they live in association with other organisms

<p>symbiotic</p> Signup and view all the answers

Bacteria are heterotrophic by ______; they are saprotrophs

<p>absorption</p> Signup and view all the answers

The nitrogen-fixing bacteria in the nodules of legumes, or the bacteria that live within our own intestinal tract. Classification of Bacteria Classification bacteria based on their shapes: 1- Rod (bacillus, pl., ______). 2- Round or spherical (coccus, pl., ______). 3- Spiral (spirillum, pl., ______)

<p>bacilli</p> Signup and view all the answers

Classification bacteria based on Gram's staining A- Gram-positive bacteria retain a dye-iodine complex and appear purple under the light microscope because have a thick layer of peptidoglycan on their cell wall. B- Gram-negative bacteria do not retain the a dye-iodine complex and appear pink because have only a thin layer. Reagents 1- Crystal violet primary stain mordant that fixes crystal violet to 2- Iodine solution/Gram's Iodine cell wall 3- Decolorizer e.g. ______ 4- Safranin secondary stain 5- Water preferably in a squirt bottl

<p>ethanol</p> Signup and view all the answers

Harmful activity of bacteria Bacterial infections are diseases that can affect your skin, lungs, brain, blood and other parts of your body. harmful effects of bacteria in humans: 1. Bacteria are also linked with cancer. 2. They are responsible for some of the spoilage of food. 3. They can also cause simple allergies and chronic inflammation. 4. In some cases, the bacteria can advance to the flesh and tissues of the host and hence are called flesh-eating bacteria. 5. They are responsible for many infectious diseases like pneumonia, ______, diphtheria, syphilis, and tooth decay. 6. Some bacteria cause cellulose degradation thereby destroying textiles, wooden articles, and canvas. Food spolilage Bacterial animal diseases include 1- plague, ______, pneumonia, anthrax, 2-meningitis and haemorrhagic septicaemia.

<p>tuberculosis</p> Signup and view all the answers

Prevention of Bacterial Diseases 1-maintaining proper hygiene. 2- Bacterial diseases can be prevented by taking the following measures: Timely vaccination. 3- Use of surface disinfectants of bleach to kill pathogenic bacteria. 4- Cooking food properly. Consuming hygienically prepared food. Proper sterilisation of needles and other surgical equipment. Washing and sanitizing hands at regular intervals. Avoiding unprotected sexual intercourse. Be mindful and avoid going out in public places if infected. Avoid sharing personal items like ______

<p>towels</p> Signup and view all the answers

Bacterial infections are diseases that can affect your skin, lungs, brain, blood and other parts of your body. harmful effects of bacteria in humans: 1. Bacteria are also linked with ______. 2. They are responsible for some of the spoilage of food. 3. They can also cause simple allergies and chronic inflammation. 4. In some cases, the bacteria can advance to the flesh and tissues of the host and hence are called flesh-eating bacteria. 5. They are responsible for many infectious diseases like pneumonia, tuberculosis, diphtheria, syphilis, and ______. 6. Some bacteria cause cellulose degradation thereby destroying textiles, wooden articles, and canvas.

<p>cancer</p> Signup and view all the answers

Bacterial animal diseases include 1- plague, ______, pneumonia, anthrax, 2-meningitis and haemorrhagic septicaemia.

<p>tuberculosis</p> Signup and view all the answers

Prevention of Bacterial Diseases 1-maintaining proper hygiene. 2- Bacterial diseases can be prevented by taking the following measures: Timely vaccination. 3- Use of surface disinfectants of bleach to kill pathogenic bacteria. 4- Cooking food properly. Consuming hygienically prepared food. Proper sterilisation of needles and other surgical equipment. Washing and sanitizing hands at regular intervals. Avoiding unprotected sexual intercourse. Be mindful and avoid going out in public places if infected. Avoid sharing personal items like ______

<p>utensils</p> Signup and view all the answers

Bacterial infections are diseases that can affect your skin, lungs, brain, blood and other parts of your body. harmful effects of bacteria in humans: 1. Bacteria are also linked with ______. 2. They are responsible for some of the spoilage of food. 3. They can also cause simple allergies and chronic inflammation. 4. In some cases, the bacteria can advance to the flesh and tissues of the host and hence are called flesh-eating bacteria. 5. They are responsible for many infectious diseases like ______, tuberculosis, diphtheria, syphilis, and tooth decay. 6. Some bacteria cause cellulose degradation thereby destroying textiles, wooden articles, and canvas.

<p>cancer</p> Signup and view all the answers

Bacterial infections are diseases that can affect your skin, lungs, brain, blood and other parts of your body. harmful effects of bacteria in humans: 1. Bacteria are also linked with ______. 2. They are responsible for some of the spoilage of food. 3. They can also cause simple allergies and chronic inflammation. 4. In some cases, the bacteria can advance to the flesh and tissues of the host and hence are called flesh-eating bacteria. 5. They are responsible for many infectious diseases like pneumonia, tuberculosis, diphtheria, syphilis, and ______. 6. Some bacteria cause cellulose degradation thereby destroying textiles, wooden articles, and canvas.

<p>cancer</p> Signup and view all the answers

Prevention of Bacterial Diseases 1-maintaining proper hygiene. 2- Bacterial diseases can be prevented by taking the following measures: Timely vaccination. 3- Use of surface disinfectants of bleach to kill pathogenic bacteria. 4- Cooking food properly. Consuming hygienically prepared food. Proper sterilisation of needles and other surgical equipment. Washing and sanitizing hands at regular intervals. Avoiding unprotected sexual intercourse. Be mindful and avoid going out in public places if infected. Avoid sharing personal items like ______

<p>toothbrushes</p> Signup and view all the answers

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