Question 1

Cyclin-dependent protein kinases can regulate the progression of cells through the cell cycle by phosphorylation of proteins such as:

Accepted Answer

A) insulin. 
B) myoglobin. 
C) myosin. 
D) retinal rod and cone proteins. 
E) All of the above 
A) insulin. 
B) myoglobin. 
C) myosin. 
D) retinal rod and cone proteins. 
E) All of the above

Question 2

Briefly describe the ethylene detection system of plants.

Accepted Answer

In Arabidopsis,the CTR-1 Ser/Thr protein

Question 3

Which of the following is not involved in the specificity of signal transduction?

Accepted Answer

A) Interactions between receptor and signal molecules 
B) Location of receptor molecules 
C) Structure of receptor molecules 
D) Structure of signal molecules 
E) Transmembrane transport of signal molecules by receptor molecules 
A) Interactions between receptor and signal molecules 
B) Location of receptor molecules 
C) Structure of receptor molecules 
D) Structure of signal molecules 
E) Transmembrane transport of signal molecules by receptor molecules

Question 4

Describe the relationship between a proto-oncogene and an oncogene,and explain how one arises from the other.

Accepted Answer

A proto-oncogene is a gene that encodes

Question 5

Scatchard analysis can provide information on:

Accepted Answer

A) enzyme cascades. 
B) enzyme mechanisms. 
C) gated ion channels. 
D) protein phosphorylation. 
E) receptor-ligand interactions. 
A) enzyme cascades. 
B) enzyme mechanisms. 
C) gated ion channels. 
D) protein phosphorylation. 
E) receptor-ligand interactions.

Question 6

Mutations in which of the following are not part of the progression from normal to cancerous cells in colorectal cancer?

Accepted Answer

A) Abl involved in cellular signaling 
B) KRAS and BRAF kinases involved in cellular signaling 
C) PI3K and PTEN involved in cellular signaling 
D) MMR involved in DNA repair 
E) CDC4 involved in ubiquitination 
A) Abl involved in cellular signaling 
B) KRAS and BRAF kinases involved in cellular signaling 
C) PI3K and PTEN involved in cellular signaling 
D) MMR involved in DNA repair 
E) CDC4 involved in ubiquitination

Question 7

Guanyl cyclase receptor enzymes:

Accepted Answer

A) are all membrane-spanning proteins. 
B) are examples of ligand-gated ion channels. 
C) catalyze synthesis of a phosphate ester. 
D) catalyze synthesis of a phosphoric acid anhydride 
E) require hydrolysis of ATP in addition to GTP. 
A) are all membrane-spanning proteins. 
B) are examples of ligand-gated ion channels. 
C) catalyze synthesis of a phosphate ester. 
D) catalyze synthesis of a phosphoric acid anhydride 
E) require hydrolysis of ATP in addition to GTP.

Question 8

What are the extracellular and intracellular molecules that interact with integrins?

Accepted Answer

Extracellular molecules that bind to int

Question 9

Which of the following are involved in desensitization of the $\beta$-adrenergic receptor?

Accepted Answer

A) ($\beta$-adrenergic receptor kinase) 
B) Arrestin 
C) GTPase activating proteins (GAPs) 
D) A and B above 
E) A,B,and C above 
A) ($\beta$-adrenergic receptor kinase) 
B) Arrestin 
C) GTPase activating proteins (GAPs) 
D) A and B above 
E) A,B,and C above

Question 10

Which of the following does not use a cAMP-dependent signaling pathway?

Accepted Answer

A) Insulin 
B) Epinephrine 
C) Odorants 
D) Spicy tastes 
E) Growth factors 
A) Insulin 
B) Epinephrine 
C) Odorants 
D) Spicy tastes 
E) Growth factors

Cyclin-dependent protein kinases can regulate the progression of cells through the cell cycle by phosphorylation of proteins such as:

Briefly describe the ethylene detection system of plants.

Which of the following is not involved in the specificity of signal transduction?

Describe the relationship between a proto-oncogene and an oncogene,and explain how one arises from the other.

Scatchard analysis can provide information on:

Mutations in which of the following are not part of the progression from normal to cancerous cells in colorectal cancer?

Guanyl cyclase receptor enzymes:

What are the extracellular and intracellular molecules that interact with integrins?

Which of the following are involved in desensitization of the $\beta$ -adrenergic receptor?

Which of the following does not use a cAMP-dependent signaling pathway?

The Foundations of Biochemistry

Water

Amino Acids, peptides, and Proteins

The Three-Dimensional Structure of Proteins

Protein Function

Enzymes

Carbohydrates and Glycobiology

Nucleotides and Nucleic Acids

Recombinant Dna Technology

Lipids

Biological Membranes and Transport

Principles of Bioenergetics

Glycolysis, gluconeogenesis, and the Pentose Phosphate Pathway

Principles of Metabolic Regulation

The Citric Acid Cycle

Fatty Acid Catabolism

Amino Acid Oxidation and the Production of Urea

Oxidative Phosphorylation and Photophosphorylation

Carbohydrate Biosynthesis in Plants and Bacteria

Lipid Biosynthesis

Biosynthesis of Amino Acids, nucleotides, and Related Molecules

Integration and Hormonal Regulation of Mammalian Metabolism

Genes and Chromosomes

Dna Metabolism

Rna Metabolism

Protein Metabolism

Regulation of Gene Expression

Filters

Exam 12: Biosignaling

Cyclin-dependent protein kinases can regulate the progression of cells through the cell cycle by phosphorylation of proteins such as:

Briefly describe the ethylene detection system of plants.

Which of the following is not involved in the specificity of signal transduction?

Describe the relationship between a proto-oncogene and an oncogene,and explain how one arises from the other.

Scatchard analysis can provide information on:

Mutations in which of the following are not part of the progression from normal to cancerous cells in colorectal cancer?

Guanyl cyclase receptor enzymes:

What are the extracellular and intracellular molecules that interact with integrins?

Which of the following are involved in desensitization of the β\betaβ -adrenergic receptor?

Which of the following does not use a cAMP-dependent signaling pathway?

The Foundations of Biochemistry

Water

Amino Acids, peptides, and Proteins

The Three-Dimensional Structure of Proteins

Protein Function

Enzymes

Carbohydrates and Glycobiology

Nucleotides and Nucleic Acids

Recombinant Dna Technology

Lipids

Biological Membranes and Transport

Principles of Bioenergetics

Glycolysis, gluconeogenesis, and the Pentose Phosphate Pathway

Principles of Metabolic Regulation

The Citric Acid Cycle

Fatty Acid Catabolism

Amino Acid Oxidation and the Production of Urea

Oxidative Phosphorylation and Photophosphorylation

Carbohydrate Biosynthesis in Plants and Bacteria

Lipid Biosynthesis

Biosynthesis of Amino Acids, nucleotides, and Related Molecules

Integration and Hormonal Regulation of Mammalian Metabolism

Genes and Chromosomes

Dna Metabolism

Rna Metabolism

Protein Metabolism

Regulation of Gene Expression

Filters

Which of the following are involved in desensitization of the $\beta$ -adrenergic receptor?