Question 1

Hormones are

Accepted Answer

A)  transported to their site of action by the lymphatic system. 
B)  intercellular messengers. 
C)  present in large quantities in organisms. 
D)  not well characterized. 
A)  transported to their site of action by the lymphatic system. 
B)  intercellular messengers. 
C)  present in large quantities in organisms. 
D)  not well characterized.

Question 2

Trophic hormones act on

Accepted Answer

A)  specific endocrine glands. 
B)  liver cells. 
C)  muscles cells. 
D)  all of the above. 
A)  specific endocrine glands. 
B)  liver cells. 
C)  muscles cells. 
D)  all of the above.

Question 3

Which of the following statements is not a characteristic of aerobic catabolism?

Accepted Answer

A)  molecular oxygen is the final electron acceptor 
B)  the oxidation of acetyl groups in the citric acid cycle and oxidative phosphorylation pathways ultimately yields CO2 and H2O 
C)  pyruvate and acetyl-CoA are major metabolic intermediates 
D)  roughly equal quantities of energy are produced in each of the three stages of aerobic catabolism, namely glycolysis, the citric acid cycle, and oxidative phosphorylation 
A)  molecular oxygen is the final electron acceptor 
B)  the oxidation of acetyl groups in the citric acid cycle and oxidative phosphorylation pathways ultimately yields CO2 and H2O 
C)  pyruvate and acetyl-CoA are major metabolic intermediates 
D)  roughly equal quantities of energy are produced in each of the three stages of aerobic catabolism, namely glycolysis, the citric acid cycle, and oxidative phosphorylation

Question 4

When cyclic AMP is a second messenger

Accepted Answer

A)  cyclic AMP inhibits a protein kinase 
B)  the binding of hormone produces the desired effect in the cell by stimulating the production of cyclic AMP 
C)  the G protein plays no role 
D)  a target enzyme is phosphorylated with cyclic AMP as the source of the phosphate group 
A)  cyclic AMP inhibits a protein kinase 
B)  the binding of hormone produces the desired effect in the cell by stimulating the production of cyclic AMP 
C)  the G protein plays no role 
D)  a target enzyme is phosphorylated with cyclic AMP as the source of the phosphate group

Question 5

An essential nutrient is one which is either not made in the body or is not made in sufficient quantity to allow for survival.

Accepted Answer

A) True 
 B)False

Question 6

Low levels of iodide in the diet can lead to an enlarged thyroid.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is not a typical structure for a hormone?

Accepted Answer

A)  steroid 
B)  carbohydrate 
C)  amino Acid derivative 
D)  protein or polypeptide 
E)  All of these structures are seen as hormones. 
A)  steroid 
B)  carbohydrate 
C)  amino Acid derivative 
D)  protein or polypeptide 
E)  All of these structures are seen as hormones.

Question 8

Proteins eaten in excess can be stored to satisfy future protein requirements.

Accepted Answer

A) True 
 B)False

Hormones are

Trophic hormones act on

Which of the following statements is not a characteristic of aerobic catabolism?

When cyclic AMP is a second messenger

An essential nutrient is one which is either not made in the body or is not made in sufficient quantity to allow for survival.

Low levels of iodide in the diet can lead to an enlarged thyroid.

Which of the following is not a typical structure for a hormone?

Proteins eaten in excess can be stored to satisfy future protein requirements.

Biochemistry and the Organization of Cells

Water: the Solvent for Biochemical Reactions

Amino Acids and Peptides

The Three-Dimensional Structure of Proteins

Protein Purification and Characterization Techniques

The Behavior of Proteins: Enzymes

The Behavior of Proteins: Enzymes, Mechanisms, and Control

Lipids and Proteins Are Associated in Biological Membranes

Nucleic Acids: How Structure Conveys Information

Biosynthesis of Nucleic Acids: Replication

Transcription of the Genetic Code: Biosynthesis of RNA

Protein Synthesis: Translation of the Genetic Message

Nucleic Acid Biotechnology Techniques

Viruses, Cancer, and Immunology

The Importance of Energy Changes and Electron Transfer in Metabolism

Carbohydrates

Glycolysis

Storage Mechanisms and Control in Carbohydrate Metabolism

The Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Lipid Metabolism

Photosynthesis

The Metabolism of Nitrogen

Filters

Exam 24: Integration of Metabolism: Cellular Signaling

Hormones are

Trophic hormones act on

Which of the following statements is not a characteristic of aerobic catabolism?

When cyclic AMP is a second messenger

An essential nutrient is one which is either not made in the body or is not made in sufficient quantity to allow for survival.

Low levels of iodide in the diet can lead to an enlarged thyroid.

Which of the following is not a typical structure for a hormone?

Proteins eaten in excess can be stored to satisfy future protein requirements.

Biochemistry and the Organization of Cells

Water: the Solvent for Biochemical Reactions

Amino Acids and Peptides

The Three-Dimensional Structure of Proteins

Protein Purification and Characterization Techniques

The Behavior of Proteins: Enzymes

The Behavior of Proteins: Enzymes, Mechanisms, and Control

Lipids and Proteins Are Associated in Biological Membranes

Nucleic Acids: How Structure Conveys Information

Biosynthesis of Nucleic Acids: Replication

Transcription of the Genetic Code: Biosynthesis of RNA

Protein Synthesis: Translation of the Genetic Message

Nucleic Acid Biotechnology Techniques

Viruses, Cancer, and Immunology

The Importance of Energy Changes and Electron Transfer in Metabolism

Carbohydrates

Glycolysis

Storage Mechanisms and Control in Carbohydrate Metabolism

The Citric Acid Cycle

Electron Transport and Oxidative Phosphorylation

Lipid Metabolism

Photosynthesis

The Metabolism of Nitrogen

Filters