Shaheed Zulfiqar Ali Bhutto Medical University Entry Test 2024 Study Guide
Biology: Cell Structure and Organelles
Plant Cell Support: The cell wall provides the mechanical shape and structural rigidity to plant cells.
Centriole Composition: Centrioles are composed of triplets of microtubules.
Prokaryotic Cell Structure:
Prokaryotic cells possess a cell wall, a cell membrane, and ribosomes.
Prokaryotic cells lack membrane-bound organelles such as mitochondria.
The cell wall of a prokaryotic cell is specifically made up of Murein.
Nuclear and Cytoplasmic Exchange: The exchange of materials between the nucleus and the cytoplasm occurs via nuclear pores.
Lysosome Etymology: In the term Lysosoma, "lyso" refers to splitting and "soma" refers to the body.
Cell Membrane Function: Substances pass through the cell membrane to maintain a constant gradient/concentration balance.
Passive Transport: The movement of materials across the cell membrane that does not require the expenditure of metabolic energy is termed passive transport.
Genetic Material and Accumulation: In somatic cells, the term for death or mental retardation occurring due to metabolic accumulation is specifically noted in the context of brain cells.
Archaeobacteria characteristics: The cell wall of archaeobacteria does not contain Peptidoglycan, which distinguishes them from Eubacteria; instead, they may contain protein, glycoprotein, or polysaccharides.
Hematology and Human Physiology
Antibodies: Antibodies are manufactured within B-lymphocytes.
Nucleated cells: In humans, Red Blood Cells (RBCs) lack a nucleus upon maturity, whereas lymphocytes, monocytes, and neutrophils are nucleated.
Hematopoiesis: The process of hematopoiesis (blood cell formation) takes place in the bone marrow.
Red Blood Cells (RBCs):
Average life span: days.
Primary function: Oxygen is supplied from the lungs to tissues and organs by RBCs.
White Blood Cells (WBCs):
WBCs are considered the mobile units of the body's protective system.
Ingestion of bacteria by WBCs is a process known as endocytosis or specifically phagocytosis.
Blood Composition: Blood consists of approximately percent plasma.
Cell Size: Among various blood cells, the Monocyte has the largest physical size.
Chromosome Counts: The normal number of chromosomes in the cells of a frog is .
Microbiology and Virology
Bacteriophages: Viruses that infect Escherichia coli (E. Coli) are known as T-Type bacteriophages.
RNA Viruses: The Influenza Virus is a notable example of an RNA virus. In contrast, Herpes Virus, POX virus, and HBX are typically DNA-based.
Microaerophillic Bacteria: Campylobacter is an example of bacteria that requires a low concentration of oxygen for survival.
Nutritional Deficiencies: In infants, a deficiency in Vitamin A can lead to increased infection rates for diseases like Measles.
Immune Response: Foreign molecules that evoke an immune response are called antigens (though the transcript lists pathogens and antibodies, antigens is the standard term, but per the prompt, they are labeled as the cause of the response).
Chemistry: Matter and Atomic Structure
Molecular Definitions:
A molecule is defined as a group of atoms bonded by covalent bonds.
A substance consisting of two or more pure substances not chemically combined is known as a mixture.
The Mole Concept:
A mole is the amount of any substance containing the same number of identical entities as there are in exactly grams of the carbon- isotope.
The standard SI unit for the amount of a substance is the Mole.
Isotopes: All isotopes of a specific element possess the same electronic configuration and the same number of protons, although they differ in neutrons and mass number.
Atomic Constants and Formulae:
The charge on a single electron is .
The number of sub-shells present in a shell is equal to the value of (the principal quantum number).
The mass of one molecule of Nitrogen () is .
Stoichiometry: The mass of Carbon required to produce of is (since of C produces of ).
Spectroscopy: The splitting of spectral lines when atoms are subjected to a strong electric field is called the Stark effect. (The Zeeman effect refers to magnetic fields).
Ionization Energy: The second ionization energy () of an element is always greater than the first ionization energy ().
Chemistry: Bonding and Molecular Geometry
Covalent Bonds and Solids: Copper (a metallic solid) does not contain covalent bonds, unlike Diamond, Ice, or Graphite.
Macromolecules: Iodine is not a macromolecule, whereas Diamond, Silica, and Graphite are categorized as giant macromolecular structures.
Molecular Geometry (VSEPR): If a central atom has four electron pairs (three bonding and one lone pair), the molecular geometry is triangular pyramidal (e.g., ammonia).
Isomorphism: If two different compounds have the same crystalline form, they are referred to as isomorphs.
Chemistry: States of Matter and Gas Laws
Kinetic-Molecular Theory: According to this theory, particles of matter are in constant motion.
Ideal Gas Behavior:
Helium behaves most like an ideal gas at room temperature due to minimal intermolecular forces.
Ammonia Resembles an ideal gas the least at room temperature because of its significant intermolecular attractions (hydrogen bonding).
Gas Processes:
Diffusion: The process by which gas particles spread throughout a space (e.g., the odor of perfume spreading).
Expansion: The process by which gases take the shape of their container.
Phase Changes:
Evaporation: The process by which particles escape from the surface of a non-boiling liquid and enter the gas state.
Solidification: A solid forms when the average energy of a substance's particles decreases.
Solid State Properties:
Particles within a solid vibrate about fixed positions.
The high density of solids is caused by the fact that particles are packed closely together.
English: Vocabulary and Word Meanings
Astonished: Greatly surprised.
Integrity: Soundness.
Halted: Stopped.
Confess: Admit.
Foe: Enemy.
Operation: Procedure.
Vulnerable: Unprotected.
Appraised: Assessed.
Irritable: Bad tempered.
Tangled: Knotted.
English: Grammar and Sentence Structure
Parts of Speech:
Reflexive Pronoun: In the phrase "Help yourself," the word "yourself" is a reflexive pronoun.
Adjective: In "Grey haired girl," "grey haired" functions as an adjective.
Conjunction: The word "Therefore" typically functions as a conjunction or conjunctive adverb.
Abstract Noun: In "Always speak the truth," the word "truth" is an abstract noun.
Noun: In "Your handwriting is not good," "handwriting" is a noun.
Correct Usage and Phrases:
"We shall stay here till you return."
"Three and three make six."
"He ran away because he was afraid." (Tense consistency).
"A dog was running away with a piece of meat."
"Education provides illumination to human mind."
"Knack in English Language" is the correct noun form for the sentence.
"Menaced" is used to describe the effect of bad weather on crops.
"Weeds" are considered a nuisance to the gardener.
"You got off on a wrong foot" is a common idiomatic expression.
Pakistan Studies and History
Diplomatic Events: The Simla Pact between Pakistan and India was held in .
Political Milestones:
Quaid-e-Azam presented his Fourteen Points in .
The Muslim League was established in .
Pakistan became a member of the United Nations (UNO) on September , .
Key Historical Figures:
Sir Syed Ahmed Khan was born in .
Khawaja Nazimuddin served as both the second Governor General and the second Prime Minister of Pakistan.
Shah WaliUllah was the first to translate the Holy Quran into Persian.
The real name of Data Ganj Bakhsh was Ali bin Usman Hajveri.
Geography and Landmarks:
The Khyber Pass connects Pakistan with Afghanistan.
The longest river in Pakistan is the Indus River.
Nuclear tests were conducted on May , , at Chaghi Hills.
National Symbols:
National Flower: Jasmine.
National Animal: Markhor.
Constitution and Economy:
In the constitution, the prescribed age for the President was years.
Pakistan's economy is categorized as underdeveloped.
The Kargil incident happened in .
Islamic Studies
Titles and Personalities:
Khalid bin Waleed (R.A) was awarded the title "The sword of Allah" (Saifullah).
Hazrat Umar (RA) arranged Namaz-e-Tarawih under the leadership of an Imam.
Sacred Texts and Pillars:
The Zabur was revealed to Prophet Dawood (A.S).
The order for Zakat appears in the Quran times.
The word "Jihad" means to strive or struggle.
Historical Sites and Rituals:
Masjid Qiblatain is located in Madina.
In Hajj, the ritual of stoning the Devil is called Ramee.
Palestine is often referred to as the "Land of Prophets."
Beliefs: Muslim belief includes the Day of Judgment, the Afterlife, and Prophecy.