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