Monera
Monera
This kingdom comprises of single-celled prokaryotic bacteria, filamentous actinomycetes and photosynthetic blue-green algae (cyanobacteria). Carl Woese (1977) divided Monera into Archaebacteria (primitive bacteria) and Eubacteria (true bacteria).
Bacteria: Bacteria are unicellular and generally occur singly. Some of them are found in groups. They are named according to their shapes.
1. Rod-shaped bacteria are called bacilli (singular: bacillus), e.g., Bacillus anthracis, which causes the disease anthrax.
2. Spherical bacteria are called cocci (singular: coccus), e.g., Streptococcus pneumoniae, which causes the disease pneumonia.
3. Other types are spiral bacteria called spirilla. eg: Spirillium and comma-shaped called vibrio. eg: vibrio cholera.
Bacteria lack nuclear membrane. Therefore, a distinct nucleus and nucleolus are absent. Bacteria also lack membrane-bound organelles like endoplasmic reticulum, Golgi complex, mitochondria and plastids. Most bacteria lack chlorophyll, hence they are heterotrophic (saprophytic or parasitic). However, a few bacteria possess chlorophyll and are autotrophic. Remember that all parasitic bacteria do not cause diseases. There are many that live harmlessly in our intestine.
Deopending on the composition of the cell wall, some bacteria retain a certain type of stain, while others lose it. The method of distinguishing bacteria by staining them with Gram's stain was developed by a Danish bacteriologist Christian Gram. Bacteria with a particular type of cell wall that retain the stain after being washed with an organic solvent are called Gram positive bacteria and that do not retain the stain are called as the stain are called Gram negative.
Many bacteria have flagella or cilia, while some have thin outgrowths called fimbariae. Some bacteria secrete a slimy material which covers them in a protective slime layer or capsule.
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Which of the following bacteria cause the disease pneumonia ? | |||
| Right Option : C | |||
| View Explanation | |||
Nucleus is absent in ____________________ of the following organisms - | |||
| Right Option : C | |||
| View Explanation | |||
The bacteria that do not posses chlorophyll are can either be _________ and __________ . | |||
| Right Option : C | |||
| View Explanation | |||
Students / Parents Reviews [20]
My experience with Abhyas Academy has been very good. When I was not in Abhyas whenever teacher ask questions I could not speak it confidently but when I came in Abhyas, my speaking skills developed and now I am the first one to give the answer of teachers question.
Upmanyu Sharma
7thWe started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
Manya
8thAbhyas is an institute of high repute. Yogansh has taken admission last year. It creates abilities in child to prepare for competitive exams. Students are motivated by living prizes on basis of performance in Abhyas exams. He is satisfied with institute.
Yogansh Nyasi
7thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thOne of the best institutes to develope a child interest in studies.Provides SST and English knowledge also unlike other institutes. Teachers are co operative and friendly online tests andPPT develope practical knowledge also.
Aman Kumar Shrivastava
10thAbhyas is good institution and a innovative institute also. It is a good platform of beginners.Due to Abhyas,he has got knoweledge about reasoning and confidence.My son has improved his vocabulary because of Abhyas.Teacher have very friendly atmosphere also.
Manish Kumar
10thIn terms of methodology I want to say that institute provides expert guidence and results oriented monitering supplements by requsite study material along with regular tests which help the students to improve their education skills.The techniques of providing education helps the students to asses...
Aman Kumar Shrivastava
10thMy experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
Ayan Ghosh
8thAbhyas institute is one of the best coaching institute in the vicinity of Ambala cantt.The institute provides good and quality education to the students.The teachers are well experienced and are very helpful in solving the problems. The major advantages of the institute is extra classes for weak...
Shreya Shrivastava
8thBeing a parent, I saw my daughter improvement in her studies by seeing a good result in all day to day compititive exam TMO, NSO, IEO etc and as well as studies. I have got a fruitful result from my daughter.
Prisha Gupta
8thMy experience with Abhyas academy is very nice or it can be said wonderful. I have been studying here from seven class. I have been completing my journey of three years. I am tinking that I should join Abhyas Academy in tenth class as I am seeing much improvement in Maths and English
Hridey Preet
9thUsually we see institutes offering objective based learning which usually causes a lag behind in subjective examinations which is the pattern followed by schools. I think it is really a work of planning to make us students grab the advantages of modes of examination, Objective Subjective and Onli...
Anika Saxena
8thWhen I have not joined Abhyas Academy, my skills of solving maths problems were not clear. But, after joining it, my skills have been developed and my concepts of science and SST are very well. I also came to know about other subjects such as vedic maths and reasoning.
Sharandeep Singh
7thThe experience was nice. I studied here for three years and saw a tremendous change in myself. I started liking subjects like English and SST which earlier I ran from. Extra knowledge gave me confidence to overcome competitive exams. One of the best institutes for secondary education.
Aman Kumar Shrivastava
10thIt was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
Cheshta
10thAbhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
10thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
Ayan Ghosh
8thAbhyas academy is great place to learn. I have learnt a lot here they have finished my fear of not answering.It has created a habit of self studying in me.The teachers here are very supportive and helpful. Earlier my maths and science was good but now it has been much better than before.
Barkha Arora
10thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
7thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
