.

2021-04-30 11:56:28 FUNCTION OF LARGE
INTESTINE

TRICK

DEWS

1)D- defecation.

2)E- excretion of bivalent ions
like sulphate,
carbonate, phosphate
(NOTE- kidneys can't
excrete bivalent ions ).

3)W- water and drug absorption

4)S - synthesis of Vit-k & vit-
B12 by the microbes of
large intestine Open / Comment

2021-04-29 16:42:45 Shapes in NCERT BIOLOGY
NEET TIPS AND TRICKS
1. Pollen grains are generally : Spherical
2. Nucleous : Spherical
3. Centriole: Cylindrical
4. Mitochondrial: Sausage shaped or cylindrical
5. RBCs: Round and biconcave
6.Mesophyll cell: Round and oval
7.Trachied : Elongated
8. Columnar epithelium : Long and narrow
9. WBSs : Amoeboid
10. Nerve cell(longest cell) : long and branched
11. Henle's loop : Hairpin bend
12. Stomach : J-shaped
13. Spleen and kidney : Bean shaped
14. Thymus : Lobed organ
15. Patella : cup shaped
16. Bowman's capsule : Double walled cup like structure
17. Heart : Clenched fist (size)
18. Oxygen dissociation curve : Sigmoid

Share and subscribe Open / Comment

2021-04-29 12:41:38 IMP OF PLANT KINGDOM

Isogamous sexual reproduction in algae- Ulothrix (flagellated)
Spirogyra (non-flagellated)

Anisogamous sexual reproduction in algae- Udorina

Oogamous sexual reproduction in algae- Volvox, Fucus

Algin- Brown Algae

Carragreen - Red Algae

Agar- Gelidium, Gracilaria
(Red algae)

Motile asexual spores in algae- Zoospores

Laminarin, Mannitol- Complex carbohydrates of Brown algae

Fucoxanthin- Brown Algae

Phycoerythrin- Red Algae

Floridean Starch Found in Red algae, similar to amylopectin and glycogen

The main plant body is a gametophyte- Bryophytes

Peat- Sphagnum

Microphylls- Selaginella

Macrophylls- Fern

Heterosporous pteridophytes- Selaginella
Salvinia

Vascular plants without seeds- Pteridophytes

Mycorrhiza- Pinus
(symbiotic association with fungi in the roots)

Coralloid roots- Cycas
(nitrogen-fixing cyanobacteria in the roots)

The tallest gymnosperm- Sequoia (redwood tree)
Microscopic angiosperm Wolffia

Parallel venation- Monocotyledons

Reticulate venation- Dicotyledons

The cells of embryo sac are- Haploid

Algae showing haplo-diplontic life cycle- Ectocarpus, Polysiphonia, Kelps

Algae showing the diplontic life cycle- Fucus

Zygotic meiosis- Haplontic life cycle Open / Comment

2021-04-28 18:07:52 Menomics or short tricks to learn ANIMAL KINGDOM PART-2



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

PART -1 UPLOADED

STAY TUNED FOR SUCH TRICKS Open / Comment

2021-04-27 20:27:56 MNEMONICS ANIMAL KINGDOM ----

Phylum Porifera

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

WILL UPDATE ALL MNEMONICS SOON

STAY UNMUTED Open / Comment

2021-04-27 12:30:51 MNEMONICS P-BLOCK ELEMENT

This block contains non-metal, semi-metal and poor metals. P-BLOCK element the last six group of the periodic table(group 13 to 18) have their own valence electron.

GROUP 13 is known as Boron group and it consist of Boron(B),Aluminium(Al),Gallium (Ga),Indium(In),and Thallium(Ti).

MNEMONIC for this group:
B A G I T

Group 14 consist of Carbon(C),Silicon(Si),Germanium (Ge),Tin(Sn),and lead(Pb)and known as carbon group

MNEMONIC for this group:

Chemistry Sir Gives Sanki Problems

Group 15 includes Nitrogen(N),Phosphorus(P),Arsenic(As),Antimony(Sb),and Bismuth(Bi) and known as nitrogen group.

MNEMONIC for this group:

Nahi Pasand Aise Sab Bhai

GROUP 16 contains Oxygen(O) sulphur (S), Selenium(S), Tellurium(Te), and Polonium(Po) and are these are known as oxygen group.

MNEMONIC for this group:

Oh! Style Se Tel Polish

Group 17 Fluorine (F), Chlorine(Cl),Bromine(Br),Iodine(I),and Astatine(At) and these groups are known as Halogens.

MNEMONIC for this group:
Fir Call Kar Bahaar AayI Aunty

Group 18 consist of Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn) and known group of noble gasses except Helium.

MNEMONIC for this Group:

He Never Arrived; Kara Xero Run pe Out Open / Comment

2021-04-26 18:11:44 VIMP- DO OR DIE

IMP OF PLANT KINGDOM

Isogamous sexual reproduction in algae- Ulothrix (flagellated)
Spirogyra (non-flagellated)

Anisogamous sexual reproduction in algae- Udorina

Oogamous sexual reproduction in algae- Volvox, Fucus

Algin- Brown Algae

Carragreen - Red Algae

Agar- Gelidium, Gracilaria
(Red algae)

Motile asexual spores in algae- Zoospores

Laminarin, Mannitol- Complex carbohydrates of Brown algae

Fucoxanthin- Brown Algae

Phycoerythrin- Red Algae

Floridean Starch Found in Red algae, similar to amylopectin and glycogen

The main plant body is a gametophyte- Bryophytes

Peat- Sphagnum

Microphylls- Selaginella

Macrophylls- Fern Open / Comment

2021-04-25 15:40:34 Cytokinins (Phytokinins):
(i) Cytokinins are plant growth hormones which are basic in nature, either aminopurine or phenyl urea derivatives that promote cell division (cytokinesis) either alone or in conjugation with auxin.

(ii) Functions of cytokinins

(a) Cell division: Cytokinins are essential for cytokinesis and thus promote cell division. In presence of auxin, cytokinins stimulate cell division even in non-meristematic tissues.

(b) Cell enlargement and Differentiation: Under some conditions cytokinins enhance the expansion of leaf cells in leaf discs and cotyledons. These cells considered to be mature and under normal conditions do not expand.

(c) Delay in senescence: Cytokinin delay the senescence (ageing) of leaves and other organs by controlling protein synthesis and mobilization of resources (Disappearance of chlorophyll). It is called Richmond Lang effect.

(d) Counteraction of apical dominance: Auxins and cytokinins act antagonistically in the control of apical dominance. Auxins are responsible for stimulating growth of apical bud.

(e) Breaking of dormancy: Cytokinins breaks seeds dormancy of various types and thus help in their germination.

(f) Accumulation and Translocation of solutes Open / Comment

2021-04-25 12:07:51 BORON:
•In casting of copper as a dioxidizer
•Boron rods used in automic reactor.
•Boron fiber used in bullet proof jacket,
•In composite material of aircraft
•Used in braintumer therapy.

BORAX:
•As a flux for soldring metal.
•In borex bead test
•In softning of water
•Antiseptic
•Manufacturing of enamels of glazes, tiles.
•For making optical and borosilicals SS.
•Food preservative

ALUMINIUM:
• Making house hold, untensils, frames, roof,aircrafts.
• Electric wire.
•Thermite process (In metallurgy of Cr, Mn, Fe)
•For transportin nitric acid.
•AI, Hg used as reducing agent.
•Aluminium powder + Ammonium nitrate.

LEAD [Pb]:
•In making telegraph and telephone wires
•Making bullets
•Making chamber in HSO, process.

NITROGEN:
•In the manufacturing of HNO3, NH3, CaCN2.
•Liquid nitrogen used as refrigrant.
•Inert atmosphere in metallurgy.
•Gas thermometer and electrical bulb

NH3:
• Refrigeration
•Manufacturing HNO3, NaHCO3
•Artificial Silk.
• Urea Formation
•For solvent

HNO3:
• Manufacturing of ammonium nitrateas fertilizer.
•In explosive
• For making nitroglycerine.
• Making TNT.
• Pickling against of stainless steel.
• Etching of Metal
•Oxidizer in rocket fule. Open / Comment

2021-04-24 18:30:19 *#Some_Important_Questions#*

* CELL *

The word cell came from the latin word.
* Ans: Cellula*

All living organisms are made up of
* Ans: Cell*

Study of cell - *Cytology*

Study of tissue - *Histology*

The physical unit of life
* Ans: Protoplasm*

Who invented the cell?
* Ans: Robert Hook in 1665*

Cell theory was proposed by?
* Ans: M.J. Schleiden and Theodor Schwann (1839)*

Scientist who observed cork cells under a microscope?
* Ans: Robert Hook*

Plant cell was discovered by?
* Ans: Robert Hook*

The term protoplasm was coined by 3.E. Purkinje Scientist who called protoplasm as the physical basis of life T.H. Huxley

Largest cell
* Ans: Ostrich's egg*

Smallest cell?
* Ans: Mycoplasma*

Organisms known as pleuro pneumonia like organism (PPLO)?
* Ans: Mycoplasma*

Smallest cell in the human body?
* Ans: Sperm*

Largest cell in human body?
* Ans: Ovum*

Longest cell in human body?
* Ans: Neuron*

Power house of a cell?
* Ans: Mitochondria*

Brain of the cell?
* Ans: Nucleus*

Kitchen of the cell?
* Ans: Chloroplast*

Energy Currency of the cell?
* Ans: ATP*

Suicidal bag?
* Ans: Lysosomes*

Traffic Police of the cell?
* Ans: Golgibodies*

Skeletal system of the cell?
* Ans: Endoplasmic reticulum*

The cell having most life span in human body?
* Ans: RBC*

Cytoplasm and Nucleus are included in?
* Ans: Protoplasm*

The cell organelle known as protein factory?
* Ans: Ribosome*

The organelle in the site of protein synthesis?
* Ans: Ribosome*

Ribosome has its own?
* Ans: RNA*

Two types of acids present in cell?
* Ans: DNA and RNA*

The basic unit of chromosome?
* Ans: DNA*

The functional unit of DNA?
* Ans: Genes*

Function of DNA?
* Ans: Transmission of hereditary traits*

Function of RNA?
* Ans: Protein synthesis*

Each chromosome has?
* Ans: A pair of DNA*

DNA sugar is called?
* Ans: Deoxyribose*

The nitrogen bases in DNA?
* Ans: Adenine, Guanine, Thymine, Cytosine*

The RNA sugar?
* Ans: Ribose*

The nitrogen bases in RNA?
* Ans : Adenine, Uracil, Cytosine and Guanine*

The double helical model of DNA was discovered by?
* Ans: James Watson and Francis Crick*

The enzyme present in lysosome?
* Ans: Hydrolytic enzyme*

Lysosome was discovered by?
* Ans: Christion de Duve (1955)*

Compounds enter the cell through?
* Ans: Endoplasmic reticulum*

The cell organelle which is the sites of energy transfer in living cell?
* Ans: Mitochondria*

The functions of mitochondria?
* Ans: Cellular respiration, ATP production*

The stage of cellular respiration which does not need oxygen?
* Ans: Glycolysis*

The term Mitochondria was coined by?
* Ans: Carl Benda (1898)*

Name the process in which the main product is energy?
* Ans: Cellular respiration*

In mitochondria the energy is formed in the form of?
* Ans: ATP molecules*

Which molecule is known as the energy currency?
* Ans : ATP molecule*

ATP?
* Ans: Adenosine Triphosphate*

The cell that lacks mitochondria and nucleus?
* Ans: RBC*

Number of ATP molecule that will get from one molecule of glucose?
* Ans: 38ATP*

The elements in the component of ATP?
* Ans: Nitrogen and phosphorus*

Kerb's cycle is related to?
* Ans: Cellular respiration*

Cell respiration was discovered by?
* Ans: Adolf Krebs*

The whole process of a cell is controlled by?
* Ans: Nucleus*

The cell without nucleus?
* Ans: Prokaryotic cell*

The cell with nucleus?
* Ans : Eukaryotic cell*

Nucleus was discovered by?
* Ans : Robert Brown*

Name the process in which lysosome digest its own cell organelles?
* Ans: Autoplagy*

A network like structure inside the nucleus is called?
* Ans: Chromatin Reticulum*

The structure of cell is first explained in the book of?
* Ans: Micrographia*

The living thing which do not obey cell theory?
* Ans: Virus*

The scientist first studied about all structure and cell reaction?
* Ans: Theodor Schwaan*

Schwaan cell are seen in?
* Ans: Nerve cell* Open / Comment