All forms of life use oxygen in respiration. True False
FALSE
Homeostatic mechanisms act through _________________ feedback.
Negative
Proteins include DNA and RNA TrueFalse
FALSE
A ______________ reaction is symbolized as AB→A+B.
Decomposition
Movement of substances in body fluids is the definition of this life process.
Circulation
The branch of science that deals with the structure of human body parts is called ______________.
Anatomy
Which of the following examples illustrates a homeostatic mechanism?A. frostbite on exposure to coldB. decreasing body temperature during prolonged exposure to cold conditionsC. dehydration from lack of water intakeD. shivering in response to a drop in body temperatureE. increasing body temperature during exercise
D. Shivering in response to a drop in body temperature
Which of the following is not organic?A. A lipidB. A carbohydrateC. A nucleic acidD. A proteinE. Carbon dioxide
E. Carbon dioxide
Metabolism is defined as
All of the chemical reactions in the body
In the list below, which displays the highest organizational level of complexity?A.chemistryB. respiratory systemC. tissuesD. cellular organellesE. heart
Respiratory System
The muscular system is responsible for body movements, maintenance of posture and production of body heat.True False
TRUE
A molecular formula represents the numbers and types of atoms in a molecule.TrueFalse
TRUE
When atoms combine with other atoms, interactions occur between their ______________ shells.
Electron
A chemical reaction in which pairs of two different molecules trade positions is called a(an) _________ reaction.
Exchange
Carbon dioxide is
A waste product of metabolic processes
FX --> F + X is an example of a ___________ reaction.
Decomposition
The topics of human anatomy and physiology are difficult to separate because the structures of the body parts are closely related to their ___________.
Functions
Chemistry is the branch of science that deals with the composition of matter. True False
TRUE
An element with an atomic number of 6 contains 12 protons.True False
FALSE
Which term refers specifically to the structures that provide information about conditions in the internal environment?
Receptors
Removal of wastes produced by metabolic reactions is the definition of this life process
Excretion
A transverse section of a banana would be shaped like a(n)
Circle
The type of chemical bond formed when ions with opposite electrical charges are attracted to one another is called _________________________.
Ionic
Steroid molecules have four connected rings of carbon atoms.True False
TRUE
The passage of substances through membranes and into body fluids is an example of this life process.
Absorption
Parietal membranes are attached to the surfaces of organs.TrueFalse
FALSE
A section that separates the body into left and right portions is a
Sagittal section
Part of the liver may be found in the right lower quadrant. TrueFalse
FALSE
The gall bladder is contained in the
Right upper quadrant
Observing how bones of the arm differ in shape from bones of the leg is a study in
Anatomy
In an atom, the first shell contains a maximum of _____ electrons.
2
Which term describes a solution that contains more hydroxide ions than hydrogen ions?
Basic
Inorganic substances that usually dissociate in water are called
Electrolytes
The __________________ cavity is the part of the abdominopelvic cavity that contains the terminal portion of the large intestine, the urinary bladder and the internal reproductive organs.
Pelvic
_______________ cause responses that alter conditions in the internal environment.
Effectors
Which of the following causes conditions in the body to move away from the normal state? A. positive feedbackB. negative feedbackC. homeostasisD. metabolismE. setpoint
Positive feedback
Organic substances always contain the elements hydrogen and _______________.
Carbon
A solution that has a pH of 6 has ten times the hydrogen ion concentration of a solution with a pH of
7
This gas makes up approximately 1/5th of ordinary air and is used to release energy from food substances.
Oxygen
Which of the following chemicals is not an inorganic substance?A. waterB. proteinC. sodium chlorideD. carbon dioxideE. oxygen
Protein
As a group, compounds that release ions when they dissolve in water are called
Electrolytes
A body part that is above another part is said to be
Superior
Each element is composed of characteristic tiny particles called _________________.
Atoms
Electrons are located in the _________ of an atom and they have a "charge" that is ________.
Shells, negative
___________________ is the sum total of all of the chemical reactions in the body that break substances down and build them up.
Metabolism
Which of the following substance is not an element? A. waterB. ironC. hydrogenD. carbonE. oxygen
Water
Cholesterol is a proteinTrue False
FALSE
Normal blood pH range is _______________.
7.35 - 7.45
The ears are lateral to the eyes.True False
TRUE
Atoms that gain or lose electrons become electrically charged and are called _____________.
Ions