PRIN OF ANATOMY & PHYS 16E 2 SEM ACCESS
16th Edition
ISBN: 9781119704607
Author: Tortora
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Question
Chapter 12, Problem 2CTQ
Summary Introduction
To analyze:
A child learns to crawl and pulls the body onto the window sill. He ingests the lead contained in the paint on the wood of the window sill. His mother observes that he behaves in an odd manner. Determine the effect of lead-induced demyelination disorder.
Introduction:
Children, who live in homes with lead-based paints, are at a greater risk of lead poisoning. Lead causes damage to myelin sheaths of neuron and leads to a disorder termed as demyelinating disorder.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Which microbe does not live part of its lifecycle outside humans?
A. Toxoplasma gondii
B. Cytomegalovirus
C. Francisella tularensis
D. Plasmodium falciparum
explain your answer thoroughly.
Select all of the following that the ablation (knockout) or ectopoic expression (gain of function) of Hox can contribute to.
Another set of wings in the fruit fly, duplication of fingernails, ectopic ears in mice, excess feathers in duck/quail chimeras, and homeosis of segment 2 to jaw in Hox2a mutants
Select all of the following that changes in the MC1R gene can lead to:
Changes in spots/stripes in lizards, changes in coat coloration in mice, ectopic ear formation in Siberian hamsters, and red hair in humans
Chapter 12 Solutions
PRIN OF ANATOMY & PHYS 16E 2 SEM ACCESS
Ch. 12 - l. What is the purpose of a sensory receptor?
Ch. 12 - What are the components and functions of the SNS...Ch. 12 - 3. Which subdivisions of the PNS control voluntary...Ch. 12 - Prob. 4CPCh. 12 - 5. Describe the parts of a neuron and the...Ch. 12 - Give several examples of the structural and...Ch. 12 - 7. What is a neurolemma, and why is it important?
Ch. 12 - 8. With reference to the nervous system, what is a...Ch. 12 - 9. What types of electrical signals occur in...Ch. 12 - 10. Why are voltage-gated channels important?
Ch. 12 - 11. What is the typical resting membrane potential...Ch. 12 - 12. How do leak channels contribute to resting...Ch. 12 - 13. What is a hyperpolarizing graded potential?
Ch. 12 - 14.What is a depolarizing graded potential?
Ch. 12 - What happens during the depolarizing phase of an...Ch. 12 - Prob. 16CPCh. 12 - 17. What effect does miyelination have on the...Ch. 12 - How is neurotransmitter removed from the synaptic...Ch. 12 - Prob. 19CPCh. 12 - Prob. 20CPCh. 12 - Prob. 21CPCh. 12 - Prob. 22CPCh. 12 - What is a neural circuit?Ch. 12 - What are the functions of diverging, converging,...Ch. 12 - What factors contribute to a lack of neurogenesis...Ch. 12 - What is the function of the regeneration tube in...Ch. 12 - The buzzing of the alarm clock woke Carrie. She...Ch. 12 - Prob. 2CTQCh. 12 - As a torture procedure for his enemies, mad...
Knowledge Booster
Similar questions
- Pleiotropic genes are genes that (blank) Cause a swapping of organs/structures, are the result of duplicated sets of chromosomes, never produce protein products, and have more than one purpose/functionarrow_forwardA loss of function mutation in Pitx1 enhancers can cause (blank) Removal of Pitx1 exons and growth of ectopic hindlimbs, growth of extra ectopic forelimbs, loss of forelimb specification and development, and loss of hindlimb specification and developmentarrow_forwardHox1a most likely contributes to (blank) patterning in the developing embryo? Ventral, posterior, limb or anteriorarrow_forward
- Select all of the following that can help establish Hox gene expression boundaries (things that affect Hox and not things that Hox affects). Retinoic acid, anterior/posterior axis, fibroblast growth factors, vagal neural crest, and enhancersarrow_forwardEctopic expression of Hox often results in (blank) phenotypes. (Blank) transformations are characterized by the replacement of one body part/structure with another. Hoxeotic, homealoneotic, joexotic, or homeoticarrow_forwardWhat's the difference when drawing omega-6 and omega-3?arrow_forward
- . Consider a base substitution mutation that occurred in a DNA sequence that resulted in a change in the encoded protein from the amino acid glutamic acid to aspartic acid. Normally the glutamic acid amino acid is located on the outside of the soluble protein but not near an active site. O-H¨ A. What type of mutation occurred? O-H B. What 2 types of chemical bonds are found in the R-groups of each amino acid? The R groups are shaded. CH2 CH2 CH2 H2N-C-COOH H2N-C-COOH 1 H Glutamic acid H Aspartic acid C. What 2 types of bonds could each R-group of each of these amino acids form with other molecules? D. Consider the chemical properties of the two amino acids and the location of the amino acid in the protein. Explain what effect this mutation will have on this protein's function and why.arrow_forwardengineered constructs that consist of hollow fibers are acting as synthetic capillaries, around which cells have been loaded. The cellular space around a single fiber can be modeled as if it were a Krogh tissue cylinder. Each fiber has an outside “capillary” radius of 100 µm and the “tissue” radius can be taken as 200 µm. The following values apply to the device:R0 = 20 µM/secaO2 = 1.35 µM/mmHgDO2,T = 1.67 x 10-5 cm2/secPO2,m = 4 x 10-3 cm/secInstead of blood inside the fibers, the oxygen transport and tissue consumption are being investigated by usingan aqueous solution saturated with pure oxygen. As a result, there is no mass transfer resistance in the synthetic“capillary”, only that due to the membrane itself. Rather than accounting for pO2 variations along the length ofthe fiber, use an average value in the “capillary” of 130 mmHg.Is the tissue fully oxygenated?arrow_forwardMolecular Biology Please help with question. thank you You are studying the expression of the lac operon. You have isolated mutants as described below. In the presence of glucose, explain/describe what would happen, for each mutant, to the expression of the lac operon when you add lactose AND what would happen when the bacteria has used up all of the lactose (if the mutant is able to use lactose).5. Mutations in the lac operator that strengthen the binding of the lac repressor 200 fold 6. Mutations in the promoter that prevent binding of RNA polymerase 7. Mutations in CRP/CAP protein that prevent binding of cAMP8. Mutations in sigma factor that prevent binding of sigma to core RNA polymerasearrow_forward
- Molecular Biology Please help and there is an attached image. Thank you. A bacteria has a gene whose protein/enzyme product is involved with the synthesis of a lipid necessary for the synthesis of the cell membrane. Expression of this gene requires the binding of a protein (called ACT) to a control sequence (called INC) next to the promoter. A. Is the expression/regulation of this gene an example of induction or repression?Please explain:B. Is this expression/regulation an example of positive or negative control?C. When the lipid is supplied in the media, the expression of the enzyme is turned off.Describe one likely mechanism for how this “turn off” is accomplished.arrow_forwardMolecular Biology Please help. Thank you. Discuss/define the following:(a) poly A polymerase (b) trans-splicing (c) operonarrow_forwardMolecular Biology Please help with question. Thank you in advance. Discuss, compare and contrast the structure of promoters inprokaryotes and eukaryotes.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning