Vbiotonic for NEET

2021-07-30 18:43:54 Vbiotonic for NEET pinned « GET READY FOR SUPRISE QUIZZES random quiz 9:00AM surprise quiz of any subject 12:00PM Biology +chemistry +physics 8:00PM Surprise quiz 10:00pm ALL THE BEST DO YOUR BEST …» ओपन / कमेंट

2021-07-30 18:43:05 Nitrogen Fixation - Plant physiology -
Very important points

Nitrogen fixation - Nitrogen fixing bacteria

(A) Symbiotically – Some bacteria live symbiotically and do nitrogen fixation.
e.g. · Rhizobium – found in the root nodules of legumes
· Azorhizobium – found in the stem nodules of Sesbania plant
· Azospirillum – Found on root surface of cereals i.e., superficial symbiosis (eg. Wheat, Rice, Maize).
· Frankia (Filamentous bacteria or actinomycetes) - It is found In root nodules of non leguminous
plant Casuarina and Alnus plants.

(B) Asymbiotically – Some bacteria are found freely in soil and do nitrogen fixation.
e.g. Clostridium, Chromatium, Azotobacter, Azospirillum, Beijernickia, Rhodomicrobium, Rhodospirillum, Rhodopseudomonas

Note : Azotobacter and Beijernickia are aerobic Rhodospirillum is anaerobic bacteria, Both Rhizobium and Frankia are free living in soil, but as symbionts, can fix atmospheric nitrogen. ओपन / कमेंट

2021-07-30 07:15:11 ओपन / कमेंट

2021-07-30 07:08:38 SEXUALLY TRANSMITTED DISEASES (STDs) :

Name of STD Pathogen -

(1) Gonorrhoea - Neisseria gonorrhoeae (bacterium)
(2) Genital herpes - Herpes simplex virus
(3) Genital warts - Human papilloma virus
(4) Syphilis - Treponema pallidum (bacterium)
(5) Trichomoniasis - Trichomonas vaginalis (protozoan)
(6) Chlamydiasis - Chlamydia trachomatis (bacterium) ओपन / कमेंट

2021-07-30 07:00:17 Nitrogen fixation - Nitrogen fixing bacteria ~

(A) Symbiotically – Some bacteria live symbiotically and do nitrogen fixation.
e.g. · Rhizobium – found in the root nodules of legumes
· Azorhizobium – found in the stem nodules of Sesbania plant
· Azospirillum – Found on root surface of cereals i.e., superficial symbiosis (eg. Wheat, Rice, Maize).
· Frankia (Filamentous bacteria or actinomycetes) - It is found In root nodules of non leguminous
plant Casuarina and Alnus plants.

(B) Asymbiotically – Some bacteria are found freely in soil and do nitrogen fixation.
e.g. Clostridium, Chromatium, Azotobacter, Azospirillum, Beijernickia
Rhodomicrobium, Rhodospirillum, Rhodopseudomonas

Note : Azotobacter and Beijernickia are aerobic Rhodospirillum is anaerobic bacteria. Both
Rhizobium and Frankia are free living in soil, but as symbionts, can fix atmospheric nitrogen.

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