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2021-08-27 14:44:19 #mostimp Comparison Between Sigma And Pi Bond :

Sigma Bond

1. Formed by axial overlapping

2. Involves s-s, s-p, p-p (axial) & hybrid orbitals

3. Extent of overlapping is more so stronger

4. Free rotation around s bond is possible

5. Hybridized or unhybridized orbital forms s bond

6. Independent existence of s-bond.

Pi Bond

1. Formed by side by side overlapping

2. Involve p-p, p-d & d-d orbital

3. Extent of overlapping is less so weaker

4. Free rotation around p bond is not possible

5. Hybridized orbital never forms pi bond

6. No independent existence.

Must Read Open / Comment

2021-08-27 14:42:36 #Shortnotes Human Brain #NCERT

Introduction
The brain of a human being is the central organ of the nervous system.
The human brain consists of three parts namely the cerebrum, the brainstem and the cerebellum.
The brain of a human being plays significant role, as it controls most of the activities of the human body.
The brain is located inside the head, and protected by the skull bones.
The brain consists of more than 86 billion neurons and almost equal number of other cells as well.
Brain activity is made possible because of the interconnections of all the neurons that are linked together.
The study of brain functions is known as neuroscience.
An adult human brain weighs about 1.2 to 1.4 kg (i.e. average weight); which is about 2% of the total body weight.

Parts of Human Brain
A human brain is primarily classified as the −
➭ Forebrain
➭ Midbrain
➭ Hindbrain
Forebrain is largely made up of cerebrum, thalamus, hypothalamus and pineal gland.
Midbrain is largely made up of a portion of the brainstem.
Hindbrain largely made up of the remaining brainstem, cerebellum and pons.
Further, the (brain) hemisphere is conventionally classified into four lobes namely −
➭ Frontal lobe
➭ Parietal lobe
➭ Temporal lobe
➭ Occipital lobe
The naming is done according to the skull bones that overlie them.

Cerebrum
Divided into nearly symmetrical left and right hemispheres by a deep groove, the cerebrum is the largest part of the human brain.
Cerebrum normally controls higher brain functions including language, logic, reasoning, and creativity.

Functions of Human Brain
Perceive or sense the signal coming from the (external) environment

Giving sense of feelings and emotion

Regulating and controlling the human behaviors

Regulating and controlling the physical action

Regulating the memory function

Process of thinking (and other cognitive process) Open / Comment

2021-08-25 16:16:39 Types of Inductive effects

-I Effect (Negative Inductive Effect)
When an electronegative atom, such as a halogen, is introduced to a chain of atoms (generally carbon atoms), the resulting unequal sharing of electrons generates a positive charge which is transmitted through the chain.

This causes a permanent dipole to arise in the molecule wherein the electronegative atom holds a negative charge and the corresponding effect is called the electron-withdrawing inductive effect, or the -I effect.

+I Effect (Positive Inductive Effect)
When a chemical species with the tendency to release or donate electrons, such as an alkyl group, is introduced to a carbon chain, the charge is relayed through the chain and this effect is called the Positive Inductive Effect or the +I Effect
#unmute_this_chnnl Open / Comment

2021-08-25 16:16:14 Mathematics Formulae 01 Open / Comment

2021-08-25 16:16:07 Mathematics Formulae 02 Open / Comment

2021-08-25 15:24:02 #imp #Plant Physiology #Tricks :

Glycolysis steps

"Goodness Gracious, Father Franklin Did Go By Picking Pumpkins (to) Prepare Pies":

Goodness - Glucose

Gracious - Glucose-6-P

Father - Fructose-6-P

Franklin - Fructose-1,6-diP

Did - Dihydroxyacetone-P

Go - Glyceraldehyde-P

By - 1,3-Biphosphoglycerate

Picking - 3-Phosphoglycerate

Pumpkins - 2-Phosphoglycerate (to)

Prepare - Phosphoenolpyruvate Pies - PEP Pyruvate ·

'Did', 'By' and 'Pies' tell you the first part of those three: di-, bi-, and py-.
· 'PrEPare' tells location of PEP in the process.

B vitamin names

Trick :- "The Rhythm Nearly Proved Contagious":

In increasing order:

The - Thiamine (B1)

Rhythm - Riboflavin (B2)

Nearly - Niacin (B3)

Proved - Pyridoxine (B6)

Contagious - Cobalamin (B12)

Citric acid cycle compounds

Trick :- "Oh! Can I Keep Some Succinate For Myself?":

Oh ! - Oxaloacetate

Can - Citrate

I - Isocitrate

Keep - Ketoglutarate

Some succinate - Succinyl coA Succinate

For myself - Fumarate Malate

Citric acid cycle compounds

Trick :- "Oh Citric Acid Is Of (course) A SiLly STupid Funny Molecule":

Oh - Oxaloacetate

Citric - Citrate

Acid - Aconitate

Is - Isocitrate

Ofcourse - Oxalosuccinate

A - Alpha-ketoglutarate

SilLy sTupid - SuccinyL-CoA SuccinTe

Funny molecule - Fumarate Malate

*SilLy and sTupid used to differentiate succinyL and succinaTe*

Citric acid cycle compounds

Trick :- "Can I Ask Sharon Stone For My Orgasm?":

Citrate Isocitrate

Alpha-Ketoglutarate

Succinyl CoA Succinate

Fumerate Maleate Oxaloacetate

Pyruvate: products of complete oxidation

Trick :- "4 Naked Fun 3 Coeds + 1 Guy"

Complete oxidation of pyruvate yields:
4 NADH FADH2 3 CO2 1 GTP


Enzymes classification

Trick :- "Over The HILL":

Oxidoreductases
Transferases
Hydrolases
Isomerases
Ligases
Lyases

Enzymes get reaction over the hill.

Don't forget to share with your friends Open / Comment

2021-08-25 15:20:20 Chemistry Mnemonics

Periodic table

Rhyme & Learn...

Trick to remember Group

Group 13

BAGIT

B - Boron
Al - Aluminium
Ga - Gallium
In - Indium
Tl - Thallium

Group 14

Chemistry Sir Gives Sanki Problems

C - Carbon
Si - Silicon
Ge - Germanium
Sn - Tin
Pb - Lead

Group 15

New  Police  Assigns  Subordinate Billings on duty

N - Nitrogen
P - Phosphorous
As - Arsenic
Sb - Antimony
Bi - Bismuth

Group 16

Oh, Seema Sent The Post

O - Oxygen
S - Sulphur
Se - Sellinium
Te - Tellurium
Po - Polonium

Group 17

First  Class  Biriyani  In  Austria

F - Fluorine
Cl - Chlorine
Br - Bromine
I - Iodine
At - Astatine

Group18

Hero  Never  Arrived;  Kiran 

He - Helium
Ne - Neon
Ar - Argon
Kr - Krypton
Xe - Xenon

Don't miss out to share it..

#SRY_FOR_LATE _I_WS_MAKNG_TRICK_FOR_U Open / Comment

2021-08-23 09:45:41 #mostImp #Biology #tricks #NCERT

Tricks to remember Kingdom Protista :-

KINGDOM PROTISTA
" S P D C E "

S ➪ slime moulds
P ➪ protozoans
D ➪ dinoflagellates
C ➪ chrsophytes
E ➪ euglenoids

-----------------:::::::::::::::::::----------------

1) Chrsophytes

" D² "

➪ a) Diatoms - Navicula
- Melosira
➪ b) Desmids

-------------------:::::::::::::::::::------------------

2) Dinoflagellates

" Post Graduate Nalla "

➪ a) P - Pyrosystis
➪ b) G - Gonyaulax
➪ c) N - Noctiluca

---------------:::::::::::::::::::-----------------

3) Euglenoids
- Euglena

------------------:::::::::::::::::::--------------------

4) Slime moulds

ACELLULAR

"Pinkki bought Plums
For sale"

➪ a) P - Physaram
➪ b) P - Physarella
➪ c) F - Fuligo

CELLULAR

" DP awesome "

➪ a) D - Dictyostelium
➪ b) P - Polysphondhlium

-----------------:::::::::::::::::::------------------

5) Protozoans

A) Amoeboid Protozoans
- Amoeba
- Entamoeba

B) Flagellated Protozoans
- Trypanosoma

C) Cilliated Protozoans
- Paramecium

D) Sporozoans
- Plasmodium vivax

»---------------☆-------------------► Open / Comment

2021-08-23 09:44:40 Diseases Caused by Bacteria/Virus/Protozoa.
☆☆☆☆☆☆☆☆☆☆☆☆☆☆☆

Diseases caused by Bacteria

‌ Cholera – Vibrio choleraei

Anthrax– Bacillus anthracise

Diphtheria – Corynebacterium diphtheriae

Leprosy – Mycobacterium leprae

Botulism – Clostridium botulinum

Syphilis – Treponema pallidum

Tetanus – Clostridium tetani

Trachoma – Chlamydia trachomatis

Tuberculosis – Mycobacterium tuberculosis

Typhoid fever – Salmonella typhi.

Whooping cough– Bordetella pertussis

Diseases caused by Virus

AIDS – Human Immunodeficiency Virus(HIV)

Influenza – Influenza virus

Mumps- Mumps Virus

Polio – Polio Virus

Chicken Pox – Varicella zoster virus

Small Pox – It is caused by either of two virus variants, Variola major and Variola minor.

Measles- Measles Virus

Dengue fever – Dengue Virus

Chikungunya – Chikungunya virus.

Rabies – Rabies virus

Diseases caused by Fungi

Athlete’s foot – caused by the mold known as Epidermophyton floccosum

Diseases caused by Protozoa

Malaria – Plasmodium vivax

Amoebic dysentery – Entamoeba histolytica Open / Comment

2021-08-22 20:34:22 #mindmap Open / Comment