BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
12th Edition
ISBN: 9781264058167
Author: Raven
Publisher: MCG CUSTOM
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Chapter 39.5, Problem 3LO
Summary Introduction
To determine: The effect of gene transcription with the help of a hormone and a diagram.
Introduction: The gene expression refers to a process in which the information present in the DNA is converted into a functional product known as protein. The process of gene expression is fundamental to all living beings, including viruses.
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Place the following steps (showing how a steroid hormone changes the activities of its target cells) in order of what happens first, second, third, fourth, and last. Refer to image.
The hormone-receptor complex enters the nucleus of the cell and binds to the DNA.
The steroid hormone passes through the cell membrane.
The hormone attaches to a receptor in the cytoplasm, forming a hormone-receptor complex.
A gene in the DNA is activated, and transcription and translation take place.
Proteins that alter the cell′s activities, such as enzymes, are made.
2. Place the following steps (showing how a hydrophilic hormone changes the activities of its target cells) in order of what happens first, second, third, and last. Refer to image.
The activity of the target cell is changed by the final enzyme in the cascade.
The second messenger activates or deactivates certain enzymes in a cascade fashion.
A second messenger is activated.
Hormone binds to a receptor protein.
Give an example of a polypeptide hormone. How many amino acids are in the hormone? Where is the hormone released? Where does the hormone function? What is the result of the hormone message?
Distingish steroid from amino acid based hormones. Which act via second messenger system? Why must they use this method of target cell stimulation?
Short answer
Chapter 39 Solutions
BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
Ch. 39.1 - Compare the pigments phytochrome and chlorophyll.Ch. 39.1 - List growth responses influenced by phytochrome.Ch. 39.1 - Prob. 3LOCh. 39.2 - Prob. 1LOCh. 39.2 - Prob. 2LOCh. 39.3 - Prob. 1LOCh. 39.3 - Prob. 2LOCh. 39.3 - Prob. 3LOCh. 39.4 - Prob. 1LOCh. 39.4 - Prob. 2LO
Ch. 39.4 - Identify the types of biological molecules that...Ch. 39.5 - Discuss properties of hormones.Ch. 39.5 - Prob. 2LOCh. 39.5 - Prob. 3LOCh. 39 - Prob. 1DACh. 39 - Prob. 1IQCh. 39 - Prob. 2IQCh. 39 - Propose a mechanism to explain how seedlings could...Ch. 39 - Which of the following is stimulated by blue...Ch. 39 - Prob. 2UCh. 39 - Prob. 3UCh. 39 - Prob. 4UCh. 39 - Which of the following does NOT happen as a seed...Ch. 39 - Dwarf mutants can sometimes be induced to grow...Ch. 39 - Prob. 1ACh. 39 - If you were to plant a de-etiolated (det2) mutant...Ch. 39 - Prob. 3ACh. 39 - Which of the following defects would prevent...Ch. 39 - You have come up with a brilliant idea to stretch...Ch. 39 - You have identified a mutant Arabtdopsis plant...Ch. 39 - Which of the following might not be observed in a...Ch. 39 - Prob. 1SCh. 39 - Prob. 2SCh. 39 - The current model for gravitropism suggests that...Ch. 39 - Prob. 4S
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- A new hormone is discovered that binds to receptors on the target surface. Describe the chemical class of hormone that is hormone belong to and explain how you could discern this class? (Subject: Human physiology)arrow_forwardWrite a note on polypeptide hormone receptorarrow_forwardDescribe how a hormone can bind to a membrane-boundreceptor, directly change enzyme activity inside the cell,and increase phosphorylation of intracellular proteins.Give examples.arrow_forward
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