Name:____________________________________________________
Endocrine System Regents Quiz
Class Period:_________
1)
a.
b.
c.
d.
A similarity of the human nervous and endocrine systems is that both normally
secrete chemical messengers
have the same rate of response
have the same duration of response
secrete hormones that travel by way of neurons
2)
a.
b.
c.
d.
A similarity between the nervous system and the endocrine system in humans is that they both
are composed of neurons
are composed of glands
maintain homeostasis
secrete chemicals across synapses
3)
a.
b.
c.
d.
The secretion of chemicals that stimulate responses in specific body tissues is a function of
the nervous system, only
the endocrine system, only
both the nervous system and the endocrine system
neither the nervous system nor the endocrine system
4)
what?
a.
b.
c.
d.
Hormones and secretions of the nervous system are chemical messengers that are responsible for doing
5)
a.
b.
c.
d.
Antibody molecules and receptor molecules are similar in that they both
control transport through the cell membrane
have a specific shape related to their specific function
remove wastes from the body
speed up chemical reactions in cells
6)
a.
b.
c.
d.
What determines the ability of certain hormones to attach to a cell?
receptor molecules in the cell membrane
proteins in the cytoplasm of the cell
amount of DNA in the cell
concentration of salts outside the cell
storing genetic information
carrying out the circulation of materials
extracting energy from nutrients
coordinating system interactions
8)
A protein on the surface of HIV can attach to proteins on the surface of healthy human cells. What are the
attachment sites on the surface of the cells known as?
a.
receptor molecules
b.
genetic codes
c.
molecular bases
d.
inorganic catalysts
7)
Base your answer on the diagram below and on your knowledge of biology.
Which statement best describes the diagram?
a.
Nerve cell X is releasing receptor molecules.
b.
Nerve cell Y is signaling nerve cell X.
c.
Nerve cell X is attaching to nerve cell Y.
d.
Nerve cell Y contains receptor molecules for substance A.
9)
Base your answer on the diagram below which illustrates a role of hormones.
Explain why cell A is a nontarget cell for the hormone illustrated in the diagram.
___________________________________________________________________________________________
10)
a.
b.
c.
d.
Which system is responsible for transporting hormones from endocrine glands to various body tissues?
circulatory
digestive
excretory
nervous
11)
a.
b.
c.
d.
Which statement does not describe an example of a feedback mechanism that maintains homeostasis?
The guard cells close the openings in leaves, preventing excess water loss from a plant.
White blood cells increase the production of antigens during an allergic reaction.
Increased physical activity increases heart rate in humans.
The pancreas releases insulin, helping humans to keep blood sugar levels stable.
12)
Base your answer on An important method of communication between cells in an organism is shown in the
diagram below.
What is the chemical referred to in the diagram?
a.
a hormone important in maintaining homeostasis
b.
an enzyme detected by a cell membrane receptor
c.
DNA necessary for regulating cell functions
d.
a food molecule taken in by an organism
13)
a.
b.
c.
d.
Feedback mechanisms are best described as processes that help
reduce hormone levels to below normal in the blood
destroy hormones in the blood
directly control muscle contraction in the leg
keep body conditions near a normal, steady state
14)
After a hormone enters the bloodstream, it is transported throughout the body, but the hormone affects only
certain cells. Only certain cells are affected because the membranes of these cells have what specific structures?
a.
receptors
b.
tissues
c.
antibodies
d.
carbohydrates
15)
a.
b.
c.
d.
Which substances are found on cell surfaces and respond to nerve and hormone signals?
starches and simple sugars
subunits of DNA
vitamins and minerals
receptor molecules
16)
a.
b.
c.
d.
Which statement describes a feedback mechanism involving the human pancreas?
The production of estrogen stimulates the formation of gametes for sexual reproduction.
The level of oxygen in the blood is related to heart rate.
The level of sugar in the blood is affected by the amount of insulin in the blood.
The production of urine allows for excretion of cell waste.