Human Phys - Test 1

Created by emilyelizabeth15 

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64 terms

The study of the structure and shape of the body and body parts is calles

anatomy

the structural and functional unit of life is called

a cell

Hematopoeisis is the function of the

skeletal system

homeostasis in the human body is controlled primarily by which two organ systems

nervous and endocrine systems

which of the following is NOT a necessary life funtion

atmospheric pressure

The survival need that is required in order to release energy from foods is

oxygen

which of the following elements of a control system detects a change

receptor

negative feedback systems:

operate in such a way that the initial stimulus is shut off or reduced

which of the following is in the correct order of the elements in a control system

stimulus, receptor, afferent pathway, control center, efferent pathway, effector, response

in anatomical position

the body is erect with the feet parallel and the arms hanging at the side and the palms facing forward

which of the following orientation terms have opposite meanings in humans

superficial and deep

a section that divides the body on the longitudianl plane into right and left parts is called

sagittal

which type of section could be uses to sparate the thoracic cavity from the abdominal cavity

transverse

isotopes differ from each other in the number of ______ that they possess

neutrons

96% of the human body is composed of the elements

C, O, H, N

when a pair of electrons is shared between two atoms, the bond formed is

covalent bond

which of the following is an example of a synthesis reaction

amino acids form a protein molecule

which of the following is an example of an organic molecule

oxygen

which class of molecules does a disaccharide belong to

carbohydrates

starch is an example of a

polysaccharide

denaturation of an enzyme will

cause the enzyme to become non-functional

which of the following is correctly matches

enzymes - proteins

the universal energy compoud used by all cells of the body is

ATP

disruption of hydrogen bonding in proteins will likely lead to its

denaturation

elimination of introgenous waste from the body is the function of the

urinary system

which of the following systems is matched most accurately to the life function it provides

nervous system - responsiveness

the region of the body that contains the navel is the

umbilical region

which of the following statements is correct regarding the location of the spleen and liver

the spleen is located in the upper left quadrant and the liver is located in the upper right quadrant

The atomic number of an atom reveals the number of

protons in the atomic nucleus

The subatomic particles that are responsible for the chemical behavior of atoms are the

electrons

water is useful in body processes because

it is a good solvent

starch is an example of a

polysaccharide

keratin and collagen are examples of proteins the organic compounds that function in building tissues and acting as enzymes are the

proteins

the organic compounds that function in building tissues and acting as enzymes are the

proteins

which of the following statements about enzymes is true

they are biological catalysts

Globular proteins

play a critical role in virtually all biological processes

Carbohydrates are stored in the liver and muschles in the form of

glycogen

which of the following statements about ATP is false

...

The highest level of structural organization in humans is the organismal level. (T/F)

true

The lymphatic system secretes hormones that regulate processes such as growth repeodution, and nutrient use by cells. (T/F)

false

Most homeostatic control mechanisma are nagative feedbck reactions.(T/F)

true

as body temperature drops below normal, chemical reactions proceed to rapidly and body proteins begin to break down (T/F)

false

the thoracic cavity is separated from the abdominal cavity by diaphragm. (T/F)

true

the cardiovascular system is responsible for removing carbon dioxide from the bloodstream (T/F)

false

the urinary system conserves body water and eliminates waste (T/F)

true

maintenance of boundaries is the functional characteristics of organisms that keeps the body's internal environment distict from the external environment (T/F)

true

matter is the ability to do work (T/F)

false

the ability of water to maintain a relatively constant temperature and preven sudden changes in temperature is due to its high heat capacity (T/F)

true

protein is used to insulate the body and is found in all cell membranes (T/F)

false

all hormones are derived from proteins (T/F)

true

The branch of biological science that deals with the function of organs and organ systems is called __________

physiology

In _______ feedback, the initial stimulus produces a response that further increases the stimulus

positive

the most abundant inorganic chemical substance in the body is ______

water

the most abundant organic substance in the human body is _______

proteins

the system that functions in the storage of calcium is called the ______ system

skeletal

The breakdown of ingested foods into simple molecules that can be absorbed into the bloodstream is termed ____

digestion

the ability to sense changes and react to them is termed ________

irratability

information travels from the receptor to the control center via the ________ pathway

afferent

glucose, fructose, and galactose are examples of a specific catagory of carbohydrates known as _______

monosaccharides

the tendency of the body's system to maintain a relatively constant or balanced internal environment is called _______

homeostasis

the term that describes all chemical reactions occuring in the body is called ______

metabolism

the ____ system protects underlying organs from drying out and mechanical damage

integumentary

the three-dimensional shape of the DNA molecule is called _________

a double helix

the biological catalyst is called ______

an enzyme

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