NCERT PCMB OFFICIAL ™✅

2021-08-20 21:54:29 #mindmap Open / Comment

2021-08-20 21:54:15 #mindmap Open / Comment

2021-08-20 21:54:01 #mindmap Open / Comment

2021-08-20 21:53:51 #mindmap Open / Comment

2021-08-20 07:44:25 #imp POINTS #𝐐𝐮𝐢𝐜𝐤_𝐑𝐞𝐯𝐢𝐬𝐢𝐨𝐧 #𝐒𝐡𝐨𝐫𝐭_𝐍𝐨𝐭𝐞𝐬 #NCERT

EPITHILIAL TISSUE

Simple epithelium is composed of single layer of cells and function as lining of body cavities, ducts and tubes.

The compound epithelium consists of two or more than two layers of cells and has protective function.

The squamous epithelium is made up of single layer of flattened cells with irregular boundaries. They are present in lining of blood vessels, air sacs of lungs.

Cuboidal epithelium is made up of single layered cube-like cells and found in ducts of glands and tubular part of nephron of kidney for absorption and secretion.

Columnar epitheliums are made up of tall and slender cells. The nuclei are located at the base. Free surface may have microvilli found in lining of stomach and intestine. The ciliated one are called as ciliated epithelium.

Columnar and cuboidal epithelium specialized for secretion are known as glandular epithelium, which may be unicellular as in goblet cells of alimentary canal or multicellular as in salivary gland. Open / Comment

2021-08-20 07:41:02 #IMPORTANT POINTS WITH #TRICKS #NCERT :

CADET Face Right -(CO2, ACID, 2,3DPG, EXCERCISE, TEMP RISE - Leads to shifting of oxyhb curve to right)

CHON CaP = (macronutrients) (Carbon,hydrogen,oxygen,nitrogen,calcium and phosphorus)

HARD (Evolution) (homologous organs, adaptive radiation, divergent evolution

Cows often sit down carelessly, perhaps their joints crack, persistent early oiling might prevent painful rheumatism. (Cambriam, ordovician, silurian, devonian, carboniferous, permian, triassic, jurassic, cretaceous periods) (palaeocene, eocene, oligocene, miocene, pliocene, pleistocene, holocene(recent) epoch)

ABC - anthrax, bacilluc, clostridium (all reproduce by endospores)

Reserve bank of india - reptiles, birds, insects (all uricotellic)

FIG COM = female lives in gynaecophoric canal of male
children like granny speaking german - layers if skin

STRATUM (corneum, lucidum, granulosum, spinosum, germinativum/malphigi) Open / Comment

2021-08-19 19:57:13 #Important #Points Of The Chapter “#Cell Cycle and Cell Division" #NCERT

Zygotene: The stage of meiosis I where-
a. Homologous chromosomes start pairing.

b. Synapsis occurs

c. Synaptonemal complex formed

d. Bivalent or tetrad observed

Pachytene: The stage of meiosis where crossing over occurs between non-sister chromatids of homologous chromosomes.

Diplotene: The stage of meiosis where-

a. Dissolution of synaptonemal complex occurs and the recombined chromosomes separate from each other except at the sites of crossing over.

b. X-shaped structures called chaismata are formed.

Diakinesis: The stage of meiosis where-
a. Terminalisation of chaismata occurs

b. Chromosomes are fully condensed and meiotic spindles assembled.

c. Nucleolus disappear and nuclear envelope breaks down Open / Comment

2021-08-19 08:20:55 #imp #TRICK #Animal kingdom #Examples #Mnemonics

PHYLUM PORIFERA: Spongilla,Euspongia, Sycon

PHYLUM COELENTERATA (CNIDARIA):

Examples: Physalia, Obelia, Meandrina, Adamsia, Aurelia, Gorgonia, Pennatula, Hydra.

Mnemonic: Physics Objective exams MeinAdam Aur George Ne Pen Hide kiya.

Physics – Physalia

Objective – Obelia

Mein – Meandrina

Adam – Adamsia

Aur – Aurelia

George – Gorgonia

Ne – Cnidaria

Pen – Pennatula

Hide – Hydra.

PHYLUM PLATYHELMINTHES:

Examples: Taenia, Planaria, Fasciola.

Mnemonic: Teeno ki Planning Fail hui.

Teeno – Taenia

Planning – Planaria

Fail – Fasciola

PHYLUM MOLLUSCA:

Examples: Pinctada, Sepia, Octopus, Dentalium, Aplysia, Chaetopleura, Pila, Loligo.


MNEMONIC: Phir se Octopus dekhenge, aap pehle chai pe lo.

Phir – Pinctada

Se – Sepia

Octopus

Dekhenge – Dentalium

Aap – Aplysia

Chai – Chaetopleura

Pe – Pila

Lo – Loligo

PHYLUM ECHINODERMATA:

Examples: Ophinuria, Antedon, Asterias, Echinus, Cucumaria.


MNEMONIC: office mein aunty asked for ek cucumber.

Office – Ophinuria

Aunty – Antedon

Asked – Asterias

Ek – Echinus

Cucumber – Cucumaria.

PHYLUM ASCHELMINTHES/ NEMATODA:

Examples: Ancylostoma, Wuchereria, Ascaris, Rhabditis.

MNEMONIC: Annie Bechaari AksarReh jati hai

Annie – Ancylostoma

Bechaari – Wuchereria

Aksar – Ascaris

Reh – Rhabditis.

PHYLUM ANNELIDA:

Examples: Hirudinaria, Pheretima, Nereis.

MNEMONIC: HERO PHERE KE TIME NAHITHA.

Hero – Hirudinaria

Phere ke time – Pheretima

Nahi – Nereis.

PHYLUM ARTHROPODA:

Examples: Locusta, Limulus, Bombax, Apies, Scorpion, Butterfly, Palaemon, Laccifer, Anopheles, Culex, Aedes.

MNEMONIC: LOLITA BOMBAY AAKAR STORE SE BUTTER PEHLE MAT LENA.

LoLita – Locusta & Limulus

Bombay – Bombax

Aakar – Apies

Store – Scorpion

Butter – Butterfly

Pehle – Palaemon

Mat – Mosquitoes (Anopheles, Culex, Aedes)

Lena – Laccifer.

ANIMAL KINGDOM

Mnemonic: Sponges---
Pores All Your Sides.

Pore – Porifera

All – Spongilla

Your – Euspongia,

Sides – Sycon.

Examples: Spongilla, Euspongia, Sycon

PHYLUM COELENTERATA (CNIDARIA):

Examples: Physalia, Obelia, Meandrina, Adamsia, Aurelia, Gorgonia, Pennatula, Hydra.

Mnemonic: Physics Objective exams MeinAdam Aur George Ne Pen Hide kiya.

Physics – Physalia

Objective – Obelia

Mein – Meandrina

Adam – Adamsia

Aur – Aurelia

George – Gorgonia

Ne – Cnidaria

Pen – Pennatula

Hide – Hydra.

PHYLUM PLATYHELMINTHES:

Examples: Taenia, Planaria, Fasciola.


Mnemonic: Teeno ki Planning Fail hui.

Teeno – Taenia

Planning – Planaria

Fail – Fasciola

PHYLUM MOLLUSCA:

Examples: Pinctada, Sepia, Octopus, Dentalium, Aplysia, Chaetopleura, Pila, Loligo.


MNEMONIC: Phir se Octopus dekhenge, aap pehle chai pe lo.

Phir – Pinctada

Se – Sepia

Octopus

Dekhenge – Dentalium

Aap – Aplysia

Chai – Chaetopleura

Pe – Pila

Lo – Loligo

PHYLUM ECHINODERMATA:

Examples: Ophinuria, Antedon, Asterias, Echinus, Cucumaria.

MNEMONIC: office mein aunty asked for ek cucumber.

Office – Ophinuria

Aunty – Antedon

Asked – Asterias

Ek – Echinus

Cucumber – Cucumaria.

PHYLUM ASCHELMINTHES/ NEMATODA:

Examples: Ancylostoma, Wuchereria, Ascaris, Rhabditis.

MNEMONIC: Annie Bechaari AksarReh jati hai

Annie – Ancylostoma

Bechaari – Wuchereria

Aksar – Ascaris

Reh – Rhabditis.

PHYLUM ANNELIDA:

Examples: Hirudinaria, Pheretima, Nereis.


MNEMONIC: HERO PHERE KE TIME NAHITHA.

Hero – Hirudinaria

Phere ke time – Pheretima

Nahi – Nereis.

PHYLUM ARTHROPODA:

Examples: Locusta, Limulus, Bombax, Apies, Scorpion, Butterfly, Palaemon, Laccifer, Anopheles, Culex, Aedes.

MNEMONIC: LOLITA BOMBAY AAKAR STORE SE BUTTER PEHLE MAT LENA.

LoLita – Locusta & Limulus

Bombay – Bombax

Aakar – Apies

Store – Scorpion

Butter – Butterfly

Pehle – Palaemon

Mat – Mosquitoes (Anopheles, Culex, Aedes)

Lena – Laccifer. Open / Comment

2021-08-19 06:35:18 #Mnemonics

FUNCTION OF SERTOLIC CELLS

BIMA PENS

1) B- blood testis barrier .

2) I - inhibits hormone secretion (FSH).

3) M- mullerian inhibiting substance .

4) A - androgen binding protein synthesis .
.

5) P- phagocytosis of dead or abnormal sperm.

6) E - estrogen synthesis .

7) N- nourishment of sperm

8) S - spermiation .


Open / Comment

2021-08-19 06:34:23 S- BLOCK

#TRICK FOR MELTING POINTOF GROUP - 2

Be> car >sir >Bartan> mange
Be > ca > sr > Ba > Mg


And for GROUP-1

BOTH MELTING point and boiling point follow general trend .

Li > Na > ki > Rb > Cs

Jo CHOTA HOGA ,WO HARD HOGA , AUR HARD HOGA TOH MP & BP JADA HOGA

#ss

More may be soon

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𝐅𝐎𝐑 𝐌𝐎𝐑𝐄 𝐂𝐎𝐍𝐓𝐄𝐍𝐓
𝐉𝐎𝐈𝐍 Open / Comment