ANSC 3040 QUIZ 1 QUESTIONS AND CORRECT ANSWERS
What is a hormone? - Answers - signaling molecules that modulate activity of a target
tissue
What is the determining factor of agricultural animal production efficiency? - Answers -
Reproduction
List the methods of hormone delivery - Answers - Classical endocrine
Neuroendocrine
Autocrine
Paracrine
Neurocrine
Briefly discuss Ribiero's edit of the Neuroendocrine delivery mechanisms - Answers -
does not explicitly include circulation, can involve the portal system between the
hypothalamus and pituitary, for example
How can we classify hormones? - Answers - Source
Mode of Action
Biochemically
Name the sources of Hormones in the context of this course - Answers - Hypothalamic,
Pituitary
Gonadal
Uterine
Placental
What are the modes of action of hormones in the context of this course - Answers -
Releasing hormones
Gonadotropins
Sexual promoters
Pregnancy maintainance
Luteolytic
What are the Biochemical classifications of hormones in the context of this course -
Answers - Peptides
Glycoproteins
Eicosanoids
Steroids
, What is the precursor to Eicosanoids, Steroids in that order - Answers - Arachidonic
acid, Cholesterol
What are the methods of hormone synthesis within the context of this course? -
Answers - Substrate
Cell Machinery [synthesis/conversion]
Feedback Regulation
Peptides: Name the following factors
Substrate
Transcription
Translation
Post-translation modifications - Answers - Amino Acids
Peptide mrna
Peptides
Tertiary Peptide
Glycoproteins: Name the following factors
Substrate
Transcription
Translation
Post-translation modifications - Answers - Amino Acids, Carbohydrates
Polypeptide mrna
Polypeptides
Glycosylation, quaternary structure
Discuss the synthesis of steroids - Answers - Stepwise conversion of cholesterol
T/F plants can produce enough cholesterol to adequately supply herbivore's
requirements - Answers - FALSE, herbivores must synthesize cholesterol
Discuss the Nature of Glycoprotein subunits - Answers - Many Glycoproteins share
alpha subunits; it is the beta subunits that are specific
Discuss the Synthesis of Eicosanoids - Answers - Using the substrate Arachidonic Acid
[PUFA] use enzymes to make hormones like PGF 2 alpha
Discuss the essentiality of arachidonic acid and why it is disputed - Answers - animals
CAN synthesize it but at the cost of other fatty acids
Name and briefly describe the secretion patterns of hormones - Answers - Episodic-
released in bursts
Basal- low levels with little fluctuations
Sustained-steady secretion over a long period of time [accumulates]
Discuss feedback regulation - Answers - affects production or release of hormones
What is a hormone? - Answers - signaling molecules that modulate activity of a target
tissue
What is the determining factor of agricultural animal production efficiency? - Answers -
Reproduction
List the methods of hormone delivery - Answers - Classical endocrine
Neuroendocrine
Autocrine
Paracrine
Neurocrine
Briefly discuss Ribiero's edit of the Neuroendocrine delivery mechanisms - Answers -
does not explicitly include circulation, can involve the portal system between the
hypothalamus and pituitary, for example
How can we classify hormones? - Answers - Source
Mode of Action
Biochemically
Name the sources of Hormones in the context of this course - Answers - Hypothalamic,
Pituitary
Gonadal
Uterine
Placental
What are the modes of action of hormones in the context of this course - Answers -
Releasing hormones
Gonadotropins
Sexual promoters
Pregnancy maintainance
Luteolytic
What are the Biochemical classifications of hormones in the context of this course -
Answers - Peptides
Glycoproteins
Eicosanoids
Steroids
, What is the precursor to Eicosanoids, Steroids in that order - Answers - Arachidonic
acid, Cholesterol
What are the methods of hormone synthesis within the context of this course? -
Answers - Substrate
Cell Machinery [synthesis/conversion]
Feedback Regulation
Peptides: Name the following factors
Substrate
Transcription
Translation
Post-translation modifications - Answers - Amino Acids
Peptide mrna
Peptides
Tertiary Peptide
Glycoproteins: Name the following factors
Substrate
Transcription
Translation
Post-translation modifications - Answers - Amino Acids, Carbohydrates
Polypeptide mrna
Polypeptides
Glycosylation, quaternary structure
Discuss the synthesis of steroids - Answers - Stepwise conversion of cholesterol
T/F plants can produce enough cholesterol to adequately supply herbivore's
requirements - Answers - FALSE, herbivores must synthesize cholesterol
Discuss the Nature of Glycoprotein subunits - Answers - Many Glycoproteins share
alpha subunits; it is the beta subunits that are specific
Discuss the Synthesis of Eicosanoids - Answers - Using the substrate Arachidonic Acid
[PUFA] use enzymes to make hormones like PGF 2 alpha
Discuss the essentiality of arachidonic acid and why it is disputed - Answers - animals
CAN synthesize it but at the cost of other fatty acids
Name and briefly describe the secretion patterns of hormones - Answers - Episodic-
released in bursts
Basal- low levels with little fluctuations
Sustained-steady secretion over a long period of time [accumulates]
Discuss feedback regulation - Answers - affects production or release of hormones
