Principles of Human Physiology (6th Edition)
6th Edition
ISBN: 9780134169804
Author: Cindy L. Stanfield
Publisher: PEARSON
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Chapter 2.2, Problem 1CTQ
How does the impact Of Tay Sachs on the functionality of cells affect the disease symptoms?
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The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions.
1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction?
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b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for?
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4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale.
Mutation 1
Mutation 2
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You have a bacterial strain with the CMU operon:
a) As shown in the image below, the cmu operon encodes a peptide (Pep1), as well as a
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Pep1 is a peptide that when added extracellularly leads to activation of the Cmu operon.
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Chapter 2 Solutions
Principles of Human Physiology (6th Edition)
Ch. 2.1 - Prob. 2.1.1QCCh. 2.1 - Prob. 2.1.2QCCh. 2.1 - Prob. 2.1.3QCCh. 2.1 -
List the four types of chemical interactions...Ch. 2.2 - How does the impact Of Tay Sachs on the...Ch. 2.2 - In order to eradicate genetic diseases, such as...Ch. 2.2 - What would be the advantages and disadvantages of...Ch. 2.2 - Prob. 2.2.1QCCh. 2.2 - Prob. 2.2.2QCCh. 2.2 - Prob. 2.2.3QC
Ch. 2.2 - Prob. 2.2.4QCCh. 2.4 - Prob. 2.3.1QCCh. 2.4 - Describe the role of transmembrane proteins in the...Ch. 2.5 -
Why is only maternal mitochondrial DNA passed to...Ch. 2.5 -
How can mDNA. Be used to determine ancestry?
Ch. 2.5 - What are some diseases related to genetic...Ch. 2.5 -
Define transcription and translation. Where in...Ch. 2.5 -
Describe the functions of RNA polymerase in...Ch. 2.5 -
What is the name of the first of a polypeptide...Ch. 2.5 - Prob. 1aCTQCh. 2.5 - Why would preventing the larger ribosomal subunit...Ch. 2.5 - If ricin B induced exocytosis rather than...Ch. 2.6 -
Explain why and how a mutation in a...Ch. 2.6 -
Which characteristic(s) of cancer cells are...Ch. 2.6 - Prob. 3CTQCh. 2.6 - Prob. 2.5.1QCCh. 2.6 - Name the five stages of mitosis. During which...Ch. 2 - Prob. 1ECh. 2 - Prob. 2ECh. 2 -
Which of the following molecules is not a...Ch. 2 - Hydrogen bonding between the amino hydrogen of one...Ch. 2 -
Which of the following nucleic acids is not a...Ch. 2 - Prob. 6ECh. 2 - Prob. 7ECh. 2 - Prob. 8ECh. 2 - Prob. 9ECh. 2 - Prob. 10ECh. 2 - Prob. 11ECh. 2 - Prob. 12ECh. 2 - Prob. 13ECh. 2 -
During which phase of mitosis is the mitotic...Ch. 2 -
During which phase of mitosis do the chromosome...Ch. 2 -
Monosaccharides are (polar/nonpolar/amphipathic)...Ch. 2 - Triglycerides are (polar/nonpolar/amphipathic)...Ch. 2 - Prob. 18ECh. 2 - Prob. 19ECh. 2 - Prob. 20ECh. 2 - Prob. 21ECh. 2 - Prob. 22ECh. 2 - Prob. 23ECh. 2 - Prob. 24ECh. 2 - Prob. 25ECh. 2 - Prob. 26ECh. 2 -
The first section of a polypeptide to be...Ch. 2 -
Replication of DNA occurs during...Ch. 2 -
Division of the cytoplasm into two daughter...Ch. 2 - Prob. 30ECh. 2 - Prob. 31ECh. 2 - Prob. 32ECh. 2 -
Describe the structure of the plasma membrane....Ch. 2 - Prob. 34ECh. 2 - Prob. 35ECh. 2 - Prob. 36ECh. 2 - Prob. 37ECh. 2 - Prob. 38ECh. 2 -
Draw a flowchart showing the synthesis of...Ch. 2 -
Plasma, which is the fluid portion of blood, is...Ch. 2 -
Name some factors that cause cancer and potential...Ch. 2 - Prob. 42ECh. 2 - Prob. 43ECh. 2 - Prob. 44E
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- You have identified a new species of a Gram-positive bacteria. You would like to screen their genome for all proteins that are covalently linked to the cell wall. You have annotated the genome, so that you identified all the promoters, operons, and genes sequences within the operons. Using these features, what would you screen for to identify a set of candidates for proteins covalently linked to the bacterial cell wall.arrow_forwardBelow is a diagram from a genomic locus of a bacterial genome. Each arrow represents a coding region, and the arrowheads indicate its orientation in the genome. The numbers are randomly assigned. Draw the following features on the diagram, and explain your rationale for each feature: 10 12 合會會會會長 6 a) Expected transcriptions, based on known properties of bacterial genes and operons. How many proteins are encoded in each of the transcripts? b) Location of promoters (include rationale) c) Location of transcriptional terminators (include rationale) d) Locations of Shine-Dalgarno sequences (include rationale)arrow_forwardSample excuse letter in school class for the reasons of headaches and dysmenorrhea caused by menstrual cyclearrow_forward
- How do the muscles on the foot work to balance on an ice skate, specifically the triangle of balance and how does it change when balancing on an ice skate? (Refer to anatomy, be specific)arrow_forwardWhich of the following is NOT an example of passive immunization? A. Administration of tetanus toxoid B. Administration of hepatitis B immunoglobulin C. Administration of rabies immunoglobulin D. Transfer of antibodies via plasma therapyarrow_forwardTranscription and Translation 1. What is the main function of transcription and translation? (2 marks) 2. How is transcription different in eukaryotic and prokaryotic cells? (2 marks) 3. Explain the difference between pre-mRNA and post-transcript mRNA. (2 marks) 4. What is the function of the following: (4 marks) i. the cap ii. spliceosome iii. Poly A tail iv. termination sequence 5. What are advantages to the wobble feature of the genetic code? (2 marks) 6. Explain the difference between the: (3 marks) i. A site & P site ii. codon & anticodon iii. gene expression and gene regulation 7. Explain how the stop codon allows for termination. (1 mark) 8. In your own words, summarize the process of translation. (2 marks)arrow_forward
- In this activity you will research performance enhancers that affect the endocrine system or nervous system. You will submit a 1 page paper on one performance enhancer of your choice. Be sure to include: the specific reason for use the alleged results on improving performance how it works how it affect homeostasis and improves performance any side-effects of this substancearrow_forwardNeurons and Reflexes 1. Describe the function of the: a) dendrite b) axon c) cell body d) myelin sheath e) nodes of Ranvier f) Schwann cells g) motor neuron, interneuron and sensory neuron 2. List some simple reflexes. Explain why babies are born with simple reflexes. What are they and why are they necessary. 3. Explain why you only feel pain after a few seconds when you touch something very hot but you have already pulled your hand away. 4. What part of the brain receives sensory information? What part of the brain directs you to move your hand away? 5. In your own words describe how the axon fires.arrow_forwardMutations Here is your template DNA strand: CTT TTA TAG TAG ATA CCA CAA AGG 1. Write out the complementary mRNA that matches the DNA above. 2. Write the anticodons and the amino acid sequence. 3. Change the nucleotide in position #15 to C. 4. What type of mutation is this? 5. Repeat steps 1 & 2. 6. How has this change affected the amino acid sequence? 7. Now remove nucleotides 13 through 15. 8. Repeat steps 1 & 2. 9. What type of mutation is this? 0. Do all mutations result in a change in the amino acid sequence? 1. Are all mutations considered bad? 2. The above sequence codes for a genetic disorder called cystic fibrosis (CF). 3. When A is changed to G in position #15, the person does not have CF. When T is changed to C in position #14, the person has the disorder. How could this have originated?arrow_forward
- hoose a scientist(s) and research their contribution to our derstanding of DNA structure or replication. Write a one page port and include: their research where they studied and the time period in which they worked their experiments and results the contribution to our understanding of DNA cientists Watson & Crickarrow_forwardhoose a scientist(s) and research their contribution to our derstanding of DNA structure or replication. Write a one page port and include: their research where they studied and the time period in which they worked their experiments and results the contribution to our understanding of DNA cientists Watson & Crickarrow_forward7. Aerobic respiration of a protein that breaks down into 12 molecules of malic acid. Assume there is no other carbon source and no acetyl-CoA. NADH FADH2 OP ATP SLP ATP Total ATP Show your work using dimensional analysis here: 3arrow_forward
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