LearnSmart Chapters 1-3 Q&A's
a ____ plane is a vertical plane that divides the body or organ into equal left and right halves A. midsagittal B. sagittal C. transverse D. oblique
a. midsagittal
which is used to measure the heat energy of a substance? a. temperature b. frequency c. wavelength
a. temperature
HCO3- is also called the _____
bicarbonate ion
a ____ is a substance that helps prevent pH changes
buffer
hydrogen bonds are intermolecular bonds formed between polar molecules. which of the following is an example of a polar molecule? a. carbon dioxide molecules b. oxygen molecules c. water molecules
c. water molecules
rank the following terms from simplest to most complex : organs, organism, cells, organ systems, tissues
cells, tissues, organs, organ systems, organism
the type of potential energy that is stored in a molecule's chemical bonds is called _____ energy
chemical
the visceral pleura _________
covers the external surface of the lungs
the anatomical term for the portion of the lower limb between the knee and the ankle is ______
crural
the movement of ions across a membrane is an example of ______ energy
electrical
the propagation of an impulse in a neuron is an example of _____ energy A. mechanical B. chemical C. electrical D. radiant
electrical
ions are formed when atoms gain or lose _____
electrons
a student proposed that a chemical reaction would create more energy than the original reactants possessed. this would violate the ____ law of thermodynamics
first
the anatomical term for forehead is _____
frontal
glucose is stored in the liver and muscles in the form of a polymer called _____
glycogen
the anatomical term coxal refers to the _____
hip
type of intermolecular bond or force formed between two polar molecules
hydrogen bond
substances that dissolve in water are called _____
hydrophilic
the median space in the thoracic cavity is called the ______
mediastinum
a progressive change in a substrate molecules catalyzed by a series of enzymes is referred to as a(n) _____ pathway
metabolic
how are metabolic pathways usually regulated?
negative feedback
elements prefer to have an outer shell completely full of electrons. This tendency is called the ____ rule.
octet
osm is an abbreviation for ____ A. osmolarity B. osmolality C. osmoles
osmoles
the serous membrane forming the outermost layer of the sac that surrounds the heart is the ______
parietal pericardium
the _____ lines the internal surface of the thoracic wall
parietal pleura
the anatomical term for the diamond-shaped region between the thighs that contains the anus and selected external reproductive organs is______
perineal
the anatomical term for the entire foot is ____
pes
monomers within RNA and DNA are linked together through a special type of covalent bond called a(n) _______ bond
phosphodiester
the anatomical term for the area posterior to the knee is _____
popliteal
what subatomic particles are present in the same numbers amongst isotopes of the same element?
protons and electrons
if a hydrogen ion and an electron is added to a structure during a chemical reaction, the structure is said to have been ____
reduced
when a molecule or ion gain an electron during a reaction, it is said to have been ____
reduced
the measurement of heat energy is called _______
temperature
the heart and lungs are organs in the ____ cavity
thoracic
the anatomical term for the medial aspect of the leg, between the knee and ankle, is ______
tibial
water is called the ______ solvent
universal
the outermost (energy) electron shell is referred to as the _____ shell
valence
the _____ canal contains the spinal cord
vertebral
the correct anatomical term for spinal column is _____ column
vertebral
a neutral solution has a pH of
7
when acid dissociates in water it produces an anion and _____ A. H+ B. Na+ C. K+ D. O2
A. H+
the sharing of electrons between atoms results in a ____ bonded molecule A. covalently B. ionically C. hydrostatically
A. covalently
a serous membrane of the abdominal cavity is called the ____ A. peritoneum B. pericardium C. pleura
A. peritoneum
which function(s) primarily as energy storage in the human body? a. ATP b. Fructose c. glycogen d. triglycerides
ATP, glycogen, and triglycerides
water is an example of ____ A. an organic molecule B. an inorganic molecule
B. an inorganic molecule
identify the type of bond that forms salts A. covalent bond B. ionic bond
B. ionic bond
true or false: physiology focuses on the molecular or cellular level to gain an understanding of how organ systems work
TRUE
which are true of chemical energy? a. chemical energy is used for synthesis of molecules b. only chemical bonds of certain specific molecules have chemical energy c. chemical energy is a form of potential energy d. chemical energy is used to establish concentration gradients
a, c, d