Homework Answers
c) all of these
Explanation: Nuclear receptor family are intracellular in nature and they are responsible for regulation of expression of specific genes, metabolic regulation and homeostatsis. There are differnt mechanism by which they cause transcriptional changes to produce expression of specific genes. Based on mechanism they have be divided in different types from type I- IV.
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All members of the nuclear receptor family interact with signal molecules that diffuse through the plasma...
Membrane-bound receptors are an important component facilitating some types of cellular communication; however, not all signal-receptor...
Membrane-bound receptors are an important component facilitating some types of cellular communication; however, not all signal-receptor binding occurs outside the cell membrane. Some signal molecules are able to pass through the plasma membrane, and their receptors are intracellular. In a theoretical lab study, scientists work to design a lab experiment that would inhibit some molecules’ ability to bind with their intracellular receptors. (a) Draw conclusions about the structure and function of membrane proteins. (b) Identify some molecules that are able...
9. Analyze the diagram below of a nuclear response for gene expression: Which of the following...
9. Analyze the diagram below of a nuclear response for gene
expression:
Which of the following is this cell using to control all of the
other events to regulate gene expression?
a. phosphate bonded to a transcription factor
b. phosphorylation cascade with multiple steps
c. specific hormone that initiates a response
d. transcription housed outside of the nucleus
10. Below is a model of a signal transduction pathway that results
in the transcribing of mRNA:
Referencing the model, what...
6. Lipid-soluble signaling molecules, such as testosterone, cross the plasma membranes of all cells A) by...
6. Lipid-soluble signaling molecules, such as testosterone, cross the plasma membranes of all cells A) by diffusion but affect only target cells because only target cells retain the appropriate DNA segments. B) by diffusion but affect only target cells because only target cells have the intracellular receptors for testosterone. C) through hydrophilic channels of transmembrane proteins but affect only target cells because only target cells retain the appropriate DNA segments. D) through hydrophilic channels of transmembrane proteins but affect only...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+ Cl- H20 Na+ CO2 02 lipid Question 4 Which is(are) true about transport across the membrane? Channels can perform either active or passive transport Charged molecules move according to their electrochemical gradients Movement of an ion down its gradient requires energy Transporters are faster but less selective than channels Question 6 In the coupled transport of Na+ and glucose, the transporter O is an...
The GTPase Dynamin is involved in which step of vesicular A) Binding of cargo molecules to...
The GTPase Dynamin is involved in which step of vesicular A) Binding of cargo molecules to cargo receptors B) Assembly of the Clathrin coat C) Pinching off the vesicle from the membrane D) Transport of vesicles along microtubules Which of the following events does not occur in the rough endoplasmic reticulum? A) Cleavage of the signal peptide by the signal peptidase B) Binding of chaperone proteins to misfolded or partially folded pathways C) Transfer of a pre formed oligosaccharide to...
1,2, and 3 The following paragraph is for questions #1-3. Extracellular molecules A and E bind...
1,2, and 3
The following paragraph is for questions #1-3. Extracellular molecules A and E bind independently to plasma membrane protein B. When E binds to B, nothing happens. When A binds to B, B becomes active and converts C to D inside the cell. D then changes the cell's behavior. 1. Which molecule is the intracellular signal? a. A b. B с.С d. D 2. Which molecule is the receptor? a. A b. B c. C d. D ....
What structures are found in the cytoplasm, near the plasma membrane, at the axonal end of...
What structures are found in the cytoplasm, near the plasma membrane, at the axonal end of neuron: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors c) Secretory vesicles d) mitochondria e) nucleus What protein is found (evenly distributed) along the entire length of the cell's plasma membrane: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors c) Secretory vesicles d) nucleus e) mitochondria Proteins found exclusively at the dendritic end of the neuron: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors...
Please answer all questions 2 After isolating the rough endoplasmic reticulum from the rest of the...
Please answer all questions
2 After isolating the rough endoplasmic reticulum from the rest of the cytoplasm, you purify the RNAS attached to it. Which of the following proteins do you expect the RNA from the rough endoplasmic reticulum to encode? (a) (c) soluble secreted proteins plasma membrane proteins ER membrane proteins all of the above (b) (d) -13 In which cellular location would you expect to find ribosomes translating MRNAS that encode ribosomal proteins? (a) (c) the nucleus in...
Question 1 (1 point) Vasoconstriction occurs when epinephrine (adrenaline) binds to the a-adrenergic receptor on vascular...
Question 1 (1 point) Vasoconstriction occurs when epinephrine (adrenaline) binds to the a-adrenergic receptor on vascular smooth muscle cells. One way to treat high blood pressure is to administer competitive inhibitors that bind to this receptor. The Kd for binding of epinephrine to this receptor is ~UM. Based on the measured affinity (Kd) of the following drugs for the a-adrenergic receptor, which might be good candidates for high blood pressure medication? Drug A: Kd = 0.6 M; Drug B: Kd...
Help please. Thanks 14. Adenylyl cyclase produces the intracellular signal: a) Kinase b) Phosphatase c) Cyclic...
Help please. Thanks
14. Adenylyl cyclase produces the intracellular signal: a) Kinase b) Phosphatase c) Cyclic AMP d) AMP 15. When adrenalin is produced PKA is turned off a) b) PKA is turned on c) Has no effect on PKA d) None of the above 16. All proteins with a signal sequence enter the ER 17. The sorting signal, Nuclear Localization Sequence, all proteins in the cytosol to enter the 18. In order for proteins to enter the mitochondria, they...
9. Analyze the diagram below of a nuclear response for gene
expression:
Which of the following is this cell using to control all of the
other events to regulate gene expression?
a. phosphate bonded to a transcription factor
b. phosphorylation cascade with multiple steps
c. specific hormone that initiates a response
d. transcription housed outside of the nucleus
10. Below is a model of a signal transduction pathway that results
in the transcribing of mRNA:
Referencing the model, what...
6. Lipid-soluble signaling molecules, such as testosterone, cross the plasma membranes of all cells A) by diffusion but affect only target cells because only target cells retain the appropriate DNA segments. B) by diffusion but affect only target cells because only target cells have the intracellular receptors for testosterone. C) through hydrophilic channels of transmembrane proteins but affect only target cells because only target cells retain the appropriate DNA segments. D) through hydrophilic channels of transmembrane proteins but affect only...
Question 1 Which of the following are likely to diffuse through the plasma membrane? glucose K+ Cl- H20 Na+ CO2 02 lipid Question 4 Which is(are) true about transport across the membrane? Channels can perform either active or passive transport Charged molecules move according to their electrochemical gradients Movement of an ion down its gradient requires energy Transporters are faster but less selective than channels Question 6 In the coupled transport of Na+ and glucose, the transporter O is an...
The GTPase Dynamin is involved in which step of vesicular A) Binding of cargo molecules to cargo receptors B) Assembly of the Clathrin coat C) Pinching off the vesicle from the membrane D) Transport of vesicles along microtubules Which of the following events does not occur in the rough endoplasmic reticulum? A) Cleavage of the signal peptide by the signal peptidase B) Binding of chaperone proteins to misfolded or partially folded pathways C) Transfer of a pre formed oligosaccharide to...
1,2, and 3
The following paragraph is for questions #1-3. Extracellular molecules A and E bind independently to plasma membrane protein B. When E binds to B, nothing happens. When A binds to B, B becomes active and converts C to D inside the cell. D then changes the cell's behavior. 1. Which molecule is the intracellular signal? a. A b. B с.С d. D 2. Which molecule is the receptor? a. A b. B c. C d. D ....
What structures are found in the cytoplasm, near the plasma membrane, at the axonal end of neuron: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors c) Secretory vesicles d) mitochondria e) nucleus What protein is found (evenly distributed) along the entire length of the cell's plasma membrane: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors c) Secretory vesicles d) nucleus e) mitochondria Proteins found exclusively at the dendritic end of the neuron: a) Voltage sensitive Na^+ channels b) Neurotransmitter Receptors...
Please answer all questions
2 After isolating the rough endoplasmic reticulum from the rest of the cytoplasm, you purify the RNAS attached to it. Which of the following proteins do you expect the RNA from the rough endoplasmic reticulum to encode? (a) (c) soluble secreted proteins plasma membrane proteins ER membrane proteins all of the above (b) (d) -13 In which cellular location would you expect to find ribosomes translating MRNAS that encode ribosomal proteins? (a) (c) the nucleus in...
Question 1 (1 point) Vasoconstriction occurs when epinephrine (adrenaline) binds to the a-adrenergic receptor on vascular smooth muscle cells. One way to treat high blood pressure is to administer competitive inhibitors that bind to this receptor. The Kd for binding of epinephrine to this receptor is ~UM. Based on the measured affinity (Kd) of the following drugs for the a-adrenergic receptor, which might be good candidates for high blood pressure medication? Drug A: Kd = 0.6 M; Drug B: Kd...
Help please. Thanks
14. Adenylyl cyclase produces the intracellular signal: a) Kinase b) Phosphatase c) Cyclic AMP d) AMP 15. When adrenalin is produced PKA is turned off a) b) PKA is turned on c) Has no effect on PKA d) None of the above 16. All proteins with a signal sequence enter the ER 17. The sorting signal, Nuclear Localization Sequence, all proteins in the cytosol to enter the 18. In order for proteins to enter the mitochondria, they...
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