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2021-07-19 11:04:04 Open / Comment

2021-07-19 09:13:52 Biology NCERT Based questions
30 very important questions for NEET

The Living World
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Biological Classification
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Plant Kingdom
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Animal Kingdom
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Morphology of Flowering Plants
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Full Syllabus Biology Mock test with 90 most important questions for NEET





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Units and Dimensions
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Errors in Measurement
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Rectilinear Motion
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Projectile Motion
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Relative Motion
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Atomic Structure
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Newton's Laws of Motion
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Friction
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2021-07-19 09:13:39 "Chemistry in everyday life" Revision Through IMPORTANT POINTS

Histamine,stimulates the secretion of pepsin.

. Histamine is a potent vasodilator . lt contracts the smooth muscles in the bronchi.

. Synthetic drugs brompheniramina ( Dimetapp) & terfenadine ( Seldane), act as antihistamines.

. Antiallergic & antacid drugs work on different receptors.

. Tranquilizer & analgesics are neurologically active drugs.

. Noradrenaline plays a role in mood changes.

. Chlordiazepoxide & meprobamate,are sutable for relieving tension.

. Equanil is used in controlling depression & hypertension.

. Barbiturates are hypnotic.

. Analgesics reduce or abolish pain.

. Aspirin & paracetamol are non - narcotic analgesics.


. Aspirin inhibits the synthesis of prostaglandins. It use in prevention of heart attacks

. Morphine is a narcotic analgesics.

. The first effective anti bacterial agent prontosil.

. Antibiotics have either cidal effect or a static effect on microbes.

. Penicillin G has a narrow spectrum.

. Ampicillin & Amoxicillin are synthetic modifications of penicillins.

. In India, penicillin is manufactured at the Hindustan Antibiotics in Pimpri & in private sector industry.


. Chloramphenicol, Vancomycin. & Ofloxacin are a broad spectrum antibiotics.


.Antiseptics ( either kill or prevent the growth of microorganisms).

. .Dettol is a mixture of chloroxylenol & terpineol.

. Iodine is a powerful antiseptic.

. 0.2% solution of phenol is an antiseptic while it's 1% solution is disinfectant.

. Norethindrone is an synthetic progesterone derivative drug.

. The estrogen derivative drug is ethynylestradiol.

. Aspartame is the most successful artificial sweeteners.

.Alitame is high potency sweeteners, although it is more stable than aspartame.

. Sucralose is trichloro derivative of sucrose.It does not provide calories.

. The two most familiar antioxidants are butylated hydroxy toluene (BHT) & butylated hydroxy anisole(BHA). Open / Comment

2021-07-19 09:13:39 Types of Teeth and Their Functions

There are 4 types of teeth in the oral cavity:

Incisors – The four front teeth in both the upper and lower jaws are called incisors.  Their primary function is to cut food.  The two incisors on either side of the midline are known as central incisors.  The two adjacent teeth to the central incisors are known as the lateral incisors.  Incisors have a single root and a sharp incisal edge.

Canines – There are four canines in the oral cavity. Two in the maxillary arch and two in the mandibular area.  They are behind and adjacent to the lateral incisors.  Their main function is to tear food.  They have a single, pointed cusp and a single root.  They have the longest root of any tooth.  They also serve to form the corners of the mouth.

Premolars (Bicuspids) – These teeth are located behind and adjacent to the canines and are designed to crush food.  There are eight premolars in the oral cavity.  There are two in each quadrant of the mouth.  The one closest to the midline is the first premolar and the one farthest from the midline is the second premolar.  These teeth can have 3-4 cusps.  The maxillary first premolar has two roots, and the remaining premolars have a single root.  There are no premolars in the primary dentition.

Molars – The most posterior teeth in the mouth are the molars.  They have broader and flatter surfaces with 4-5 cusps.  They are designed to grind food.  Mandibular molars typically have 2 roots.  Maxillary molars, which are located behind the second premolars, typically have 3 roots.  There are 12 molars in the permanent dentition with three in each quadrant of the mouth.  They are named starting with closest to the midline as first molars, second molars and third molars.  Although, some people do not fully develop the third molars.  Third molars are often referred to as wisdom teeth.  The primary dentition only contains eight molars. Open / Comment

2021-07-19 09:13:39 FULL FORMS :

1. ICBN : International Code for Botanical Nomenclature
2. ICZN : International Code of Zoological Nomenclature
3. NBRI : National Botanical Research Institute (Lko.)
4. CDRI : Central Drug Research Institute (Lko.)
5. IBG : Indian Botanical Garden (Howrah)
6. PSTD : Potato Spindle Tuber Disease
7. PPLO : Pleuro Pneumonia Like Organisms
8. [S] : Concentration of substrate
9. RRC : Respiratory Rhythm Centre (Medulla)
10. GFR : Glomerular Filtration Rate
11. JGA : Juxta-Glomerular Apparatus
12. ANF : Atrial-Natriuretic factor
13. GnRH : Gonadotrophin Releasing Hormone
14. GH : Growth Hormone
15. PRL : Prolactin
16. TSH : Thyroid Stimulating Hormone
17. ACTH : Adreno Corticotrophic Hormone
18. MSH : Melanocyte Stimulating Hormone
19. ADH : Vasopressin/Anti-diuretic Hormone Open / Comment

2021-07-18 18:53:11 Apki studies ka Dhayan hum rakhenge
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2021-07-18 09:40:50 Friction Quick Revision in 1 minute





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