NURSING TEST

AQA A Level Chemistry Year 1 – Alkanes Questions and Answers What is a source of hydrocarbons? Crude oil (petroleum) What is crude oil (petroleum) ? A mixture consisting mainly of alkane hydrocarbons which can be separated by fractional distillation How might blockage of the air vents in a combustion engine affect its performance? Less energy given out by the fuel Engine less powerful/efficient What is fractional distillation? The continual evaporation and condensati...

A-Level Chemistry Paper 1 Definitions Questions and Answers correct Ionic bonding The electrostatic attraction between positive and negative ions Covalent bonding The strong electrostatic force of attraction between a shared pair of electrons and the nuclei of the bonded atoms Dative bonding Where the shared pair of electrons is supplied by one of the atoms only Electronegativity The ability of an atom to attract the bonding electrons in a covalent bond Hydrogen ...

AQA A-level chemistry chemical tests Questions and Answers What is the process for purifying an organic liquid (recrystallisation)? Dissolve impure compound in minimum volume of hot solvent Hot filter solution through (fluted) filter paper quickly Cool the filtered solution by inserting beaker in ice Suction filtrate with a Buchner flask to separate out crystals Wash the crystals with distilled water Dry the crystals between absorbent layer What is the purpose of using the minimum vo...

A-Level Chemistry Paper 1 Definitions Questions and Answers Orbital A region around the nucleus that can hold up to two electrons with opposite spins First Ionisation Energy The energy required to remove 1 mole of electrons from 1 mole of gaseous atoms Ionic bonding The electrostatic attraction between positive and negative ions Covalent bonding The strong electrostatic force of attraction between a shared pair of electrons and the nuclei of the bonded atoms Dati...

AS Level Chemistry Questions and Answers Atomic number Number of protons in an element Mass number Number of protons and neutrons Ion Electrically charged particle formed by the loss/gain of electrons Relative masses of P,N and E 1,1, 1/2000 (respectively) Isotopes Atoms of the same element with different number of neutrons but same number of protons. What are steps of mass spectroscopy? Ionisation, Acceleration, Deflection, Detecting Ionisation ...

AQA A LEVEL Chemistry Questions and Answers Relative atomic mass The average mass of an atom of an element, relative to 1/12th of the mass of an atom of Carbon-12 Relative molecular mass Average mass of a molecule compared to 1/12th of the mass of a carbon-12 atom The Avogradro constant the number of particles in a mole ideal gas equation pV = nRT empirical formula the simplest whole number ratio of atoms of each element in a compound percentage atom econ...

Exam (elaborations) Bio 255 Lab week 5 tests Questions and Answers Exam (elaborations) Exam 3 Bios 255 Questions and Answers Exam (elaborations) Bio 255 exam 2 Questions and Answers Exam (elaborations) BIO 255- TEST 2 Questions and Answers Exam (elaborations) Bio 255 Lab Week 3 Questions and Answers Exam (elaborations) Anatomy & Physiolo

Bio 255 Lab week 5 tests Questions and Answers shoulder bone clavicle upper arm bone humerus thumb side lower arm bone radius pinky side (longer) lower arm bone ulna wrist bone carpals finger bones phalanges on hand ankle bone tarsal toe bones phalanges on foot back of shoulder bone scapula butt bones os coxae upper leg bone clavicle larger lower leg bone tibia smaller lower leg bone fibula w...

Exam 3 Bios 255 Questions and Answers What is the function of the immune reproductive system protects body from infection and fights of pathogen what are the two major defense of immune adaptive and innate non-specific immunity general mechanisms that defend the body against foreign invaders. YOU ARE BORN WITH IT First line of defense skin, mucous membrane, sebum internal defenses: second line of defense inflammation interferon compliment fever phagocytosis ...

Bio 255 exam 2 Questions and Answers The place where two bones meet is called ______. articulation Growth from within cartilage is called ______. interstitial growth Cartilage is what type of tissue? connective In interstitial growth of cartilage ______. news cells and new matrix are produced Chondrocytes occupy small spaces called lacunae Which statements characterize cartilage? It supports soft tissues It provides a gliding surface at joints. It prov...

BIO 255- TEST 2 Questions and Answers Which of the following best describes the direction and function of efferent signals? -away from CNS to cause effect on glands, muscle efferent nervous system somatic sympathetic parasympathetic Autonomic nervous system Parasympathetic pathways Sympathetic pathways Adrenal sympathetic pathways ganglion A location outside of the central nervous system where autonomic signals can synapse -cluster preganglionic autonomic ne...

Bio 255 Lab Week 3 Questions and Answers areolar connective tissue Binds and cushions organs and skin By volume, mostly viscous ground substance Elastic properties from loosely organized protein fibers Highly vascularized adipose tissue Stores triglycerides for a future source of energy (fat cells) Insulation, protects vital organs Only connective tissue with more cells than matrix reticular connective tissue Reticular fibers provide framework (stroma) of organs Found in ...

Anatomy & Physiology III - BIOS 255 (Proficiency Exam Review) Questions and Answers does the right atrium have oxygenated or deoxygenated blood? deoxygenated oxygen is carried by _____ cells. It binds to proteins called _____ that contain iron. erythrocytes; hemoglobin which element is responsible for immune function, clotting, and gas transfer? (in this particular order) leukocytes; platelets; erythrocytes what are the major functions of blood? - plays a role in immune...

BIOS 255 Comprehensive Exam Questions and Answers correct Stroke Volume (SV) EDV-ESV Cardiac Output (CO) SV x HR Pulse Pressure (PP) SBP-DBP Mean Arterial Pressure (MAP) diastolic pressure + pulse pressure/3 What is the QRS complex of an ECG? ventricular depolarization endocrine cells release their secretions directly into body fluids exocrine glands secrete chemical substances into ducts that lead either to other organs or out of the body ...

Exam 3 Bios 255 Questions and Answers What is the function of the immune reproductive system protects body from infection and fights of pathogen what are the two major defense of immune adaptive and innate non-specific immunity general mechanisms that defend the body against foreign invaders. YOU ARE BORN WITH IT First line of defense skin, mucous membrane, sebum internal defenses: second line of defense inflammation interferon compliment fever phagocytosis ...

Bio 255 exam 2 Questions and Answers The place where two bones meet is called ______. articulation Growth from within cartilage is called ______. interstitial growth Cartilage is what type of tissue? connective In interstitial growth of cartilage ______. news cells and new matrix are produced Chondrocytes occupy small spaces called lacunae Which statements characterize cartilage? It supports soft tissues It provides a gliding surface at joints. It prov...

BIOS 255 – Final Questions and Answers What are the 2 type of immune response? Innate Immunity and Adaptive Immunity Which lines of defense make up innate immunity? 1st and 2nd line of defense Innate Immunity characteristics Non-specific resistance Present at birth 1st & 2nd line of defense What is the 1st line of defense? Skin & Mucous Membranes What is the 2nd line of defense? Internal Defenses The 1st line of defense is made up of what 2 types? Me...

BIL 255 exam 1 Questions and Answers vitalism life is a result of a vital force mechanists life was a mechanical process that can be explained by the laws of chemistry and physics What are the three domains? eubacteria, archaea, eukarya Carl woese compared nucleotide sequences of small subunit RNA from many species.. ribosomes and rRNA are found in all cells.. common ancestory What are the two successful plans of cellular organization? prokaryotes and eukaryotes...

BIOS255 EXAM 2 Questions and Answers Characteristics of Elastic arteries(Conducting arteries) -largest arteries by diameter -contain more elastic fibers than smooth muscle -conduct blood from the heart to the more distant muscular arteries -pressure reservoirs Muscular arteries(distributing arteries) -Distribute blood to various parts of the body -Contain large amounts of smooth muscle, most named arteries in the body fall into this category Characteristics of Arterioles -s...

BIOS 255 Exam 1 Questions and Answers correct General functions of cardiovascular system - transportation - regulation - protection parts of centrifuged blood - plasma - buffy coat - hematocrit what is in plasma water, dissolved gases, nutrients, waste products, proteins what is in the buffy coat WBC's and platelets what is in the hematocrit RBCS what percentage of blood is made of plasma 55% what percentage of blood is made of the buffy co...