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02/12/2023

"Sometimes the smallest thing takes up the most the room in your heart".

02/12/2023

✅𝗠𝗲𝗻𝘀𝘁𝗿𝘂𝗮𝗹 𝗖𝘆𝗰𝗹𝗲📈

💠
(𝟭) Menstruation occurs in human, apes and old world monkeys.
(𝟮) Menstruation is bleeding from the uterus of adult females at intervals of one lunar month.
(𝟯) Beginning of menstruation or first menstruation is called menarche.
(𝟰) The beginning of menstruation varies. It usually occurs between 12 and 15 years.
(𝟱) The cycle of events starting from one menstruation till the next one is called Menstrual Cycle.
(𝟲) In human females, menstruation is repeated at an average interval of about 28/29 days.
(𝟳) One o**m is released (ovulation) during the middle of each menstrual cycle.
(𝟴) It is regulated by certain hormones, some of which are secreted by the pituitary gland.
(𝟵) The pituitary gland is stimulated by releasing factors produced in the hypothalamus.
(𝟭𝟬) The hormones produced by the pituitary gland influence the ovaries. The hormones secreted by the ovaries affect the walls of the uterus.

●𝗣𝗵𝗮𝘀𝗲𝘀 𝗼𝗳 𝗠𝗲𝗻𝘀𝘁𝗿𝘂𝗮𝗹 𝗖𝘆𝗰𝗹𝗲
The menstrual cycle consists of following four phases:

(𝟭) 𝗠𝗲𝗻𝘀𝘁𝗿𝘂𝗮𝗹 𝗣𝗵𝗮𝘀𝗲:
(𝗶) In a 28 days menstrual cycle,the me**es takes place on cycle days 3-5.
(𝗶𝗶) The production of LH from the anterior lobe of the pituitary gland is reduced.
(𝗶𝗶𝗶) The withdrawal of this hormone causes degeneration of the corpus luteum and, therefore progestrone production is reduced.
(𝗶𝘃) Production of oestrogen is also reduced in this phase.
(𝘃) The endometrium of uterus breaks down & menstruation begins.
(𝘃𝗶) The cells of endometrium secretions, blood & unfertilised o**m constitutes the menstrual flow.

(𝟮) 𝗙𝗼𝗹𝗹𝗶𝗰𝘂𝗹𝗮𝗿 𝗣𝗵𝗮𝘀𝗲:
(𝗶) This phase usually includes cycle days 6-13 or 14 in a 28 days cycle.
(𝗶𝗶) The follicle stimulating hormone (FSH) secreted by the anterior lobe of the pituitary gland stimulates the ovarian follicle to secrete oestrogens.
(𝗶𝗶𝗶) Oestrogen stimulates the proliferation of the endometrium of the uterine wall.
(𝗶𝘃) The endometrium becomes thicker by rapid cell multiplication and this is accompanied by an increase in uterine glands & blood vessels.

🔷 𝗩𝗮𝗿𝗶𝗼𝘂𝘀 𝗘𝘃𝗲𝗻𝘁𝘀 𝗱𝘂𝗿𝗶𝗻𝗴 𝗮 𝗠𝗲𝗻𝘀𝘁𝗿𝘂𝗮𝗹 𝗖𝘆𝗰𝗹𝗲

(𝟯) 𝗢𝘃𝘂𝗹𝗮𝘁𝗼𝗿𝘆 𝗣𝗵𝗮𝘀𝗲:
(𝗶) Both LH & FSH attain a peak level in the middle of cycle (about 14th day).
(𝗶𝗶) Oestrogen concentration in blood increases.
(𝗶𝗶𝗶) Rapid secretion of LH induces rupturing of graffian follicle and thereby the release of o**m.
(𝗶𝘃) In fact LH causes ovulation.

(𝟰) 𝗟𝘂𝘁𝗲𝗮𝗹 𝗣𝗵𝗮𝘀𝗲:
(𝗶) Includes cycle days 15 to 28.
(𝗶𝗶) Corpus luteum secretes progestrone.
(𝗶𝗶𝗶) Endometrium thickens.
(𝗶𝘃) Uterine glands become secretory.

☑️𝗛𝗼𝗿𝗺𝗼𝗻𝗮𝗹 𝗖𝗼𝗻𝘁𝗿𝗼𝗹 𝗼𝗳 𝗠𝗖
(𝗶) FSH stimulates the ovarian follicles to produce oestrogens.
(𝗶𝗶) LH stimulates corpus luteum to secrete progestrone.
(𝗶𝗶𝗶) Menstrual phase is caused by the increased production of oestrogens.
(𝗶𝘃) LH causes ovulation
(𝘃) Proliferative phase is caused by the increased
production of oestrogens.
(𝘃𝗶) Secretory phase is caused by increased production of progestrone.

*🔰  IMPORTANT POINTS PMC Past Papers〽️**♦️Theses MCQS are From PMC and PMDC Past Papers♦️**💠🔸Electron Volt  is unite of ...
02/12/2023

*🔰 IMPORTANT POINTS PMC Past Papers〽️*

*♦️Theses MCQS are From PMC and PMDC Past Papers♦️*
*💠

🔸Electron Volt is unite of electric energy.
🔹783Kev is the minimum electron energy in neutron beta decay.
🔸Proton and neutron are composed smaller particle called quark.
🔹Co_herent source of light means single wave length.
🔸Woolen cloths keep body warm bcz of bad conductivity.
🔹The open circuit test in a transformer is used to measure core loss.
🔸When bulb is turned on ohm's law is not applicable.
🔹If centripetal force is zero then centrifugal also zero.
🔸Negative of potential gradient is equal to electric intensity.
🔹if mass number increase density does not change.
🔸Acceleration in Simple pendulum is always negative to displacement.
🔹The Angular momentum of photon is zero.
🔸X_Rays used in crystallography to perform diffraction.
🔹Bone image is shown on X-rays photography bcz X-rays can be absorbed by bones.
🔸Mutual induction has a practical role in performance of transformer.
🔹When force is parallel to the direction of motion of the body,the work done is minimum.
🔸1st law of thermodynamics is special case of conservation of energy.
🔹In stationary wave the distance b/w adjacent node is equal to λ/2.
🔸An angular velocity of 60rpm is same as 2π rad/s.
🔹A star moving away from earth shows red shift.
🔸F=e(V×B)is valid for proton.
🔹photon cell is similar to photo electric effect.
🔸Alternating current generator use slip rings.
🔹The speed of sound in a metal is approximately 5000m/s.
🔸Platinum wire becomes yellow at 130 temperature.
🔹Plank's constant is analogous to angular momentum.
🔸A nucleus emits an alpha particle,followed by two beta particle the final nucleus will be an isotope of the original one.
🔹One redian means arc length of unit radius is unity.
🔸Red light photon has least momentum.
🔹For step down transformer Ns greater than Np.
🔸Basically potentiometer is a device for comparing two voltages.
🔹The existence of positron was discovered in cosmic radiation.
🔸Vs/A is unit of mutual inductance.
🔹B.dI=uI is expression of Ampere's law.
🔸IR radiation are used in green house effect.
🔹The role of Inductance is equal to inertia.
🔸volts/ampere =Ohm.
🔹For ideal step up transformer Ps=Pp.
🔸Fission and fusion both are example of renewable sources of energy.
🔹Perfect black body shows continuous spectrum.
🔸Half wave rectifier posses upper half cycle.
🔹the sum of absorption and transmission of light in a medium is equal to Incident light.
🔸Polarization explains that light is electric as well as magnetic in nature.
🔹Coulmb/volts=Farrad.
🔸The coupling co-efficient of perfectly coupled coil is one(1).
🔹Magnetic field density out side the solenoid is negligible.

*💠
🔸when object moving in a circle,the angle b/w linear velocity and position vector is 90°C.
🔹During Self Inductance number of turns varies as N^2.
🔸Energy of photon is directly proportional to frequency.
🔹Work done in a Isobaric process is given by Pdv.
🔸Angular velocity can not be infinite.
🔹Constant potential difference is required for establishing steady current.
🔸An arc of length equal to circumference of a circle subtends an angle of 2π radian.
🔹The angular displacement of an object after one complete revolution is "2π" redian.
🔸Radiations are classified by its ionizing and non-ionizing nature.
🔹In full wave rectifier ripple factor is less.
🔸electric field lines due to a positive charge are radially away from the charge.
🔹Alpha rays used in smoke detectors.
🔸Wave nature of light is provided by polarization.
🔹Displacement of sun with respect to earth is "r".
🔸Instantaneous velocity is positive and negative.
*💠
🔹Work done by transition force in Simple pendulum is zero.
🔸Heavy metal used to detect radioactivity.
🔹Minimum energy required for pair production is 1.02Mev.
🔸Beats can be used to find frequency.
🔹The interference of green photon to red photon will cause no effect.
🔸Maximum power delivered by battery is Pmax=E^2/4r.
🔹Centrifuge is used to purify uranium.
🔸Momentum of photon is hf/c.
🔹Non-inverting amplifier circuits have very high input independence.
🔸Mass and energy are related to each other by Einstein law.
🔹The nuclear force is considered as strong force.
🔸Stationary Charge is not affected by magnetic field.
🔹Emf is equal to terminal potential difference when circuit is open.
🔸If we are standing in bus and driver applies a break then pseudo force pushes forward.
🔹According to Einstein mass energy are directly proportional.
🔸X-Rays is reverse process of photo electric effect.
🔹Momentum principle used in solar cells.
🔸Michelson measured the length of standard meter in terms of wave length of red candium light.
🔹Diode is non-ohmic resistor.
🔸Ripple factor of half wave rectifier is 1.21.
🔹Steady current does not change with time.
🔸Galvano meter is electro mechanical device.
🔹The principle behind the working of cathod rays osicilloscop is half wave rectifier.
🔸The value of angular momentum is maximum when angle is 90°.
🔹If pipe is closed at one end and open at other the closed end known as node.
🔸Work done on a ceiling fan by gravity is zero.
🔹The pe*******on power of x-rays depend upon frequency.
🔸The concept of work function was given by Einstein.
🔹Michelson determined velocity of light by using an octagonal rotating mirror.
🔸Centre tape rectifier circuit consist of 200%diode.
🔹Varticle velocity vs time graph for a projectile motion varies linearly.
🔸one of the major reasons for heat loss in transformer is Eddy current loss.
🔹Pseudo current may be defined as accelerating frame of reference.
🔸The Speed of photon in vacuum is smaller then in liquid water.
🔹The root mean square value of alternating current is equal to(1 under root 4)times of the peak value.
🔸Gamma rays can not be produce by electronic transition.
🔹Beta particle is actually a fast moving electron.

*💠
🔸if Alpha,Beta and Gamma rays carry same momentum all have same wave length.
🔹Wave transport energy without transporting mattet.
🔸The angle b/w radius vector and centripetal acceleration is "π".
🔹There are zero quark in electron.
🔸if we make the magnetic field stronger the value of induce current is increase.
🔹Nuclear force is spin dependent but charge independent.
🔸The number of diode in bridge rectifier is four(4).
🔹For coil self_inductance is L and current is I then flux passing through it is LI.
🔸Charge and momentum both are conserved in pair production.
🔹Ripple factor is defined as Irms/Idc.
🔸power transformers have maximum efficiency at full load.
🔹Photon when scattered from mirror its momentum becomes double.
🔸R is the thermodynamic coordinate.
🔹Gamma rays shows comparable penetrating power to X-rays.
🔸Work done by friction can be positive or negative.
🔹Radiation exchange occurs in vacuum.
🔸An ideal reversible heat engine has highest efficiency.
🔹The voltage turns ratio in step_down transformer is 2:1.
🔸The insulation b/w sheets of transformer core is to get small Eddy current.
*💠*

🔹Acceleration of earth around sun in its orbit is always tangential.
🔸Emf produced in generator is NwABcos(wt).
🔹If direction of field and area vector is opposite then field is negative.
🔸The value of Rydberg constant varies with atomic number as Z^2.
🔹Compton confirm existence of photon.
🔸Acceleration can be seen in rotating frame of reference.
🔹In Ultra violet region photon has highest energy.
🔸The resistance of super conductor is zero.
🔹Half-life is measured by Geiger Muller counter.
🔸Co_Herent sources are monochromatic sources which produce waves of constant phase difference.
🔹The fission reaction is slow reaction when neutrons slow down.
🔸According to wien's law temperature and wave length are inversely related.
🔹Value of current in short circuit is infinite.
🔸Spectral lines is like a finger print of absorbed or emission energy in a spectrum.
🔹In half wave rectification the diode conducts during positive half.
*💠

🔸The reverse process of pair production is known as annihilation of energy.
🔹Heavy water used to reduce the speed of fast moving neutron.
🔸The net force in an inertial frame is zero.
🔹The speed of sound in water is approximately 1500m/s.
🔸The resistance of human body is about 120k-ohm.
🔹Quarks are half spin particle.
🔸whene sound reflects back its known as echo sound.
🔹wave nature and particle nature of photon related to its momentum.
🔸In SONAR we use sound waves.
To join our MCAT group send add me at+923040639627
🔹Power remain unchanged in transformer.
🔸Projectile motion does not depend upon mass.
🔹The Alternating current can be converted into direct current by Rectification.
🔸Phosphorus-32 and strontium-90 used for skin cancer.
🔹Copper has low electrical resistivity.
🔸S.I unit of radioactivity is Becqueral.
🔹The speed of waves depend upon tension and mass per unit length of string.
🔸Very hot star emit blue colour.
🔹Projectile motion of object on earth always parabolic.
🔸Life time of an excited state is 10^-8s.
🔹1Rutherford is equal to 10^6becqueral.
🔸Atmosphere around the earth help by gravity.
🔹Momentum of white light is less than X-rays.
🔸Acceleration always positive for free falling body.
🔹H-atom can not produce Alpha rays.
🔸The black body which is close to perfect body is cavity radiator.
🔹S.I unit of Inductance is Henry.
🔸In stationary wave strain is maximum at node.
🔹Photocopier and ink-jet printer are applications of electrostatics.
🔸Temperature is defined by zeroth law of thermodynamics.
🔹The speed of sound in air is approximately 332m/s.
🔸Microscope uses shorter wavelength to reduce diffraction.
🔹The core of earth is hot due to frictional force.

🔸Centre tap rectifier circuit consist of 200%diode.
🔹Newtons 1st law falsified Aristotle theory.
🔸Angular frequency directly related to linear frequency.
🔹Breather is provided to transformer to absorb moisture of air during breathing.
🔸if number of loops increase than according to Faraday's law magnetic field,electric field and voltage also increase.
🔹The greek word"xeros and graphos means dry writing.
🔸Laser light is uni-directional.
🔹X-Rays were discovered in scattering experiment.
🔸Lenz law is in accordance with conservation of energy.
🔹Resistance of conductor depends upon length.
🔹A cycle tyres burst suddenly is an example of Adiabatic process.
🔸Molar mass of water is 0.108kg/mol.
🔹In A.C generator increase in number of turns in the coil increase emf.
🔸The electric potential at infinite distance zero.
🔹In fusion reaction of sun H isotopes are used.
🔸Alpha rays has highest charge.
🔹Young's double slit experiment support Huygen's wave theory.
🔸In Lorentz force magnetic force is deflecting force.
🔹The effect of nuclear bomb radiation lasts for more than 90years.
🔸In Compton scattering process wave length of scattered X-rays Increase.
🔹In stationary wave the distance between two consecutive crests is 1/2wavelength.
🔸In full wave rectifier with input frequency of 50Hz the ripple in output is mainly of the frequency of 100Hz.
🔹Pair production is possible in gamma rays photon.
🔸Electric field generate due to induction is conservative.
🔹S.I unit of equivalent dose is Sievert.

02/12/2023

DIVERSITY AMONG ANIMAL

1. Grade Radiata includes only one phylum and that is:
(a) Porifera
(b) Cnidaria
(c) Platyhelminthes
(d) Echinodermata

2. Radial symmetry occurs in which set?
(a) Echinodermata & Coelenterata
(b) Porifera & Coelenterata
(c) Mollusca & Arthropod
(d) Platyhelminthes & Coelenterata

3. Coelomate animals:
(a) Have bilateral symmetry
(b) Are triploblastic
(c) Constitute phyla from annelid to chordates
(d) All the above

4. Acoelomates are characterized by:
(a) The absence of brain
(b) The absence of mesoderm
(c) A solid body without a cavity surrounding internal organs
(d) A coelom that is not completely lined with mesoderm

5. An animal that has definite right and left halves has ________:
(a) Rotational symmetry
(b) Radial symmetry
(c) Bilateral symmetry
(d) Helical symmetry

6. The name Platyhelminthes means:
(a) Pinworms
(b) Hookworms
(c) Roundworms
(d) Flatworms

7. Fasciola hepatica is an endoparasite that lives in the:
(a) Liver of sheep
(b) Blood of sheep
(c) Spleen of sheep
(d) Intestine of sheep

8. Taenia solium lacks alimentary canal because:
(a) It does not require any food
(b) It lives in the intestine
(c) It has saprozoic mode of feeding
(d) None of the above

9. In helminthes, flame cells are component of their:
(a) Reproductive system
(b) Excretory system
(c) Nervous system
(d) Respiratory system

10. Taenia solium is the biological name of:
(a) Tapeworm
(b) Liver fluke
(c) Blood fluke
(d) Planaria

11. Acoelomate, triploblastic body with bilateral symmetry is characteristic of:
(a) Flatworm
(b) Roundworm
(c) Segmented worm
(d) Mollusc

12. The intermediate host in the life cycle of Taenia saginata is:
(a) Pig
(b) Goat
(c) Dog
(d) Cattle

13. Platyhelminthes are best described as:
(a) Flatworms, triploblastic, acoelomates
(b) Flatworms, diploblastic, acoelomates
(c) Flatworms, triploblastic, coelomates
(d) Flatworms, triploblastic, pseudocoelomates

14. Enterobius vermicularis is:
(a) Cosmopolitan
(b) Endemic
(c) Discontinuously distributed
(d) None of these

15. Roundworms have all of the following characteristics except:
(a) A pseudocoelom
(b) Bilateral symmetry
(c) An ectoderm germ layer
(d) A notochord

16. The genus “Rhabditis” contains numerous species normally found in:
(a) Soil
(b) Water
(c) F***s of man/animals
(d) All the above

17. A parasite of human small intestine in Asia, North Africa and Europe causing severe anemia, and retardation of physical and mental growth in children is:
(a) Hook worm
(b) Pinworm
(c) Ascaris
(d) Tapeworm

18. There are four bands of muscles in Nematodes, two are dorso-lateral and two:
(a) Ventro-lateral
(b) Dorso-ventral
(c) Dorso-lateral
(d) Latero-ventral

19. Nematodes lack respiratory system and:
(a) Digestive system
(b) Nervous system
(c) Circulatory system
(d) All of these

20. In annelids, all of the following body structures/systems are ________ continuous
throughout the length of body; penetrating each individual segment except:
(a) Nerve cord
(b) Gut
(c) Excretory system
(d) Blood vessels

21. Annelids are all except:
(a) Triploblastic
(b) Bilaterally symmetrical
(c) Coelomates
(d) Pointed ended

22. A parasitic annelid is:
(a) Nereis
(b) Stylaria
(c) Earthworms
(d) Hirudo

23. The first group of invertebrates which have developed a closed circulatory system is:
(a) Annelids
(b) Platyhelminthes
(c) Nematodes
(d) Molluscs

24. Which system is absent in annelids?
(a) Circulatory system
(b) Respiratory system
(c) Nervous system
(d) Digestive system

25. All of the following are hermaphrodite except:
(a) Earthworm
(b) Leech
(c) Nereis
(d) None

26. Metamerically segmented worms are included in the phylum:
(a) Coelenterata
(b) Nematoda
(c) Mollusca
(d) Annelida

27. Metamerism of earthworms is suitable:
(a) Feeding
(b) Locomotion
(c) Reproduction
(d) Digestion

28. Longitudinal and circular muscles are found in the body wall of:
(a) Sponges
(b) Cnidarians
(c) Annelids
(d) Nematodes

29. Respiratory through skin is found in:
(a) Planarian
(b) Earthworm
(c) Snail
(d) Pinworm

30. Metamerically segmented, bilaterally symmetrical animals bearing jointed appendages. These are characteristic of:
(a) Helminthes
(b) Annelida
(c) Mollusca
(d) Arthropoda

1. b 2. a 3. d 4. c 5. c
6. d 7. a 8. c 9. b 10. a

11. a 12. b 13. a 14. a 15. d
6. d 17. a 18. c 19. c 20. c

21. b 22. d 23. a 24. b 25. b
26. d 27. b 28. c 29. b 20. d

02/12/2023

*English Grammar MCQs*
Q. Lucy can’t walk anymore, she is now ________ tired.

*(A) too*
*(B) so*
*(C) such*
*(D) so such*

*The answer is: (A) too ☑*

Q. What they are doing does not seem ________ working.
*(A) be*
*(B) being*
*(C) been*
*(D) to be*

*The answer is: (D) to be ☑*

Q. She is going to quit her job ________ they give her a pay rise.
*(A) or*
*(B) until*
*(C) unless*
*(D) providing*

*The answer is: (C) unless ☑*

Q. Near the historic monument, there is a bridge ________ the Thames River.
*(A) above*
*(B) over*
*(C) off*
*(D) towards*

*The answer is: (B) over ☑*

Q. Katherine has finished her work, now she is ________ home.
*(A) going*
*(B) going to*
*(C) going to the*
*(D) going towards the*

*The answer is: (A) going ☑*

Q. It’s the first time I _______ sea-food in my life.
*(A) eat*
*(B) eaten*
*(C) have eaten*
*(D) had eaten*

*The answer is: (C) have eaten ☑*

Q. While UK has earned record revenue this year, __________ well behind in exports.
*(A) it still lag*
*(B) it still lags*
*(C) it lag still*
*(D) it lags still*

*The answer is: (B) it still lags ☑*

Q. Anna and Tania went shopping, but __________ couldn’t find anything __________ liked.
*(A) they, those*
*(B) they, them*
*(C) those, they*
*(D) they, they*

*The answer is: (D) they, they ☑*

Q. Nuclear energy is __________ dangerous to be used widely.
*(A) so*
*(B) such*
*(C) too*
*(D) that*

*The answer is: (C) too ☑*

Q. If I have money, I __________ it tomorrow.
*(A) will purchase*
*(B) would purchase*
*(C) have purchase*
*(D) have purchased*

*The answer is: (A) will purchase ☑*

Q. Cannon had __________ unique qualities _________ it was used widely in ancient times.
*(A) such, that*
*(B) such, so*
*(C) that, since*
*(D) that, that*

*The answer is: (A) such, that ☑*

02/12/2023

*🔖MCQs Biology*

📮 . The study of interaction of antigens and antibodies in the blood is known as:
A. Serology ✔
B. Haematology
C. Angiology
D. Cryobiology

📮 . The study of nuclear cytology is known as:
A. Neurology
B. Mycology
C. Karyology✔
D. Rhinology

📮 . The study of preservation of life or the study of organisms at low temperature is known as:
A. Kalology
B. Malacology
C. Cryobiology ✔
D. Dermatology

📮 . The study of animals with respect of their environment is termed as:
A. Ecology ✔
B. Cytology
C. Physiology
D. Limnology

📮 . The study of snakes is called:
A. Ichthyology
B. Serpentology✔
C. Herpatology
D. Entomology

📮 . The study of nests of birds is known as:
A. Craniology
B. Ichnology
C. Nidology✔
D. Myremecology

📮 . The study of cause of disease is known as:
A. Pathology
B. Ethology
C. Etiology✔
D. Zymology

📮 . The science of characters and distribution of race is known as:

A. Ethnology ✔
B. Anthropology
C. Sociology
D. Taxonomy

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