Question 1

A hormone that lowers the blood calcium level by inhibiting bone resorption by the osteoclasts is
____________.

Accepted Answer

The answer of A hormone that lowers the blood calcium...

Question 2

Generally we consider hormones "untargeted" or adrift in the bloodstream until they float past a target cell or tissue.How is the hypothalamus-pituitary system an exception to this? Why might this system differ?

Accepted Answer

The hypothalamus-pituitary system is an

Question 3

The most common invertebrate hormones are peptides and _____________________.

Accepted Answer

The answer of The most common invertebrate hormones are peptides...

Question 4

Outline the basic operational mechanisms of a generalized hormone.Be sure to explain mode of transport,receptor molecules,and target cells.

Accepted Answer

Hormones are chemical messengers produce

Question 5

The posterior pituitary hormone that acts on the kidney to restrict urine flow is _________________.
or
ADH or
antidiuretic hormone

Accepted Answer

vasopressi

Question 6

The hypothalamus

Accepted Answer

A)  is a ventral portion of the brain. 
B)  contains neurosecretory cells. 
C)  produces hormones that stimulate the pituitary. 
D)  has a direct linkage, or portal communication, with the anterior pituitary gland. 
E)  All of the choices are correct. 
A)  is a ventral portion of the brain. 
B)  contains neurosecretory cells. 
C)  produces hormones that stimulate the pituitary. 
D)  has a direct linkage, or portal communication, with the anterior pituitary gland. 
E)  All of the choices are correct.

Question 7

The posterior pituitary lobe hormone that has the widest distribution and is probably the parent hormone from which many others evolved is

Accepted Answer

A)  prolactin. 
B)  vasotocin. 
C)  melatonin. 
D)  insulin-like growth factor. 
E)  oxytocin. 
A)  prolactin. 
B)  vasotocin. 
C)  melatonin. 
D)  insulin-like growth factor. 
E)  oxytocin.

Question 8

The second messenger that relays a hormone's message to the cell's biochemical machinery

Accepted Answer

A)  is cyclic ATP. 
B)  is kinase. 
C)  can be any of six different molecules. 
D)  is GMP. 
E)  is DNA or RNA. 
A)  is cyclic ATP. 
B)  is kinase. 
C)  can be any of six different molecules. 
D)  is GMP. 
E)  is DNA or RNA.

Exam 34: Chemical Coordination: Endocrine System

A hormone that lowers the blood calcium level by inhibiting bone resorption by the osteoclasts is ____________.

Generally we consider hormones "untargeted" or adrift in the bloodstream until they float past a target cell or tissue.How is the hypothalamus-pituitary system an exception to this? Why might this system differ?

The most common invertebrate hormones are peptides and _____________________.

Outline the basic operational mechanisms of a generalized hormone.Be sure to explain mode of transport,receptor molecules,and target cells.

The posterior pituitary hormone that acts on the kidney to restrict urine flow is _________________. or ADH or antidiuretic hormone

The hypothalamus

The posterior pituitary lobe hormone that has the widest distribution and is probably the parent hormone from which many others evolved is

The second messenger that relays a hormone's message to the cell's biochemical machinery

Life: Biological Principles and the Science of Zoology

The Origin and Chemistry of Life

Cells As Units of Life

Cellular Metabolism

Genetics: a Review

Organic Evolution

The Reproductive Process

Principles of Development

Architectural Pattern of an Animal

Taxonomy and Phylogeny of Animals

Unicellular Eukaryotes

Sponges and Placozoans

Radiate Animals

Acoelomorpha,Platyzoa,and Mesozoa

Polyzoa and Kryptrochozoa

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Annelids and Allied Taxa

Smaller Ecdysozoans

Trilobites, Chelicerates, and Myriapods

Crustaceans

Support, Protection, and Movement

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Chordates

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Early Tetrapods and Modern Amphibians

Amniote Origins and Nonavian Reptiles

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Mammals

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Homeostasis: Osmotic Regulation, Excretion, and Temperature Regulation

Homeostasis: Internal Fluids and Respiration

Digestion and Nutrition

Nervous Coordination: Nervous System and Sense Organs

Immunity

Animal Behavior

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