Homework Help for Biology (page 2677)
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After assiting your asthmatic patient with administration of his beta 2 specific meds. You may expect to observe which of the following side effects?
Fainting or dizziness
What is the best method for determing the adequacy of artificial ventilations?
Chest rise with each ventilation
Increase in the patients pulse rate
Diminished cyanosis around the mouth
Return of a gag reflex
A thin 54 year old male with a non prodctive cough complains of difficulty breathing. He is sitting upright with his hands on his knees, and you see retractions. You notice oxygen tubing throughout the house. You should suspect a medical history of
During initial assessment of an adultâs respiratory status, you should
Evaluate both the respiratory rate and the rise and chest fall of the chest
Obtain a full set of vitals
Examine for cyanosis in the nail beds and around the lips
Feel the carotid pulse to determine both the respiratory rate and quality
During an interfacility transport of a symptomatic COPD patient with mild shortness of breath. How much oxygen should you administer
Non-rebreather mask at 15 lpm
Bag-valve mask at 15lpm
Nasal cannula at 6 lpm
Nasal canula at 2 lmp
The reason for assessing the radial and the carotid pulses simultaneously is to
Confirm adequate blood pressure
Assess central circulation
Confirm cardiac rhythm problem
Asses peripheral circulation
A patient is unresponsive with snoring respirations following a motorcycle accident. You notice blood coming from the patients nose and ears. You should
Open the airway with the head-tilt-chin lift
Open the airway with a jaw thrust
Insert a nasal airway
Ventilate with a bag valve mask
A 13 yr old female watching a horror movie states she canât catch her breath and her fingers are numb. Respirations are 30 and deep, with an SpO2 of 100% . she is speaking in complete sentences, has clear and equal breath sounds. You should
Have the patient breathe into a paper bag and transport immediately
Calmly reassure her, encouraging her to slow her rate of breathing
Administer the metered dose inhaler carried by her aunt
Place a disconnected non-rebreather mask on the patients face
Which of the following conditions is most likely to cause decrease compliance with ventilation via bag-valve-mask
(6 Points) We have discussed multiple research papers this summer session and the types of research have varied greatly in their methods and employment. Below is a list of a sampling of these methods. Rank each from the most convincing to least convincing types of evidence produced and write a short paragraph supporting your opinion. a. Testing potential treatments on cell lines b. Accessing databases to determine correlation between behaviors and cancer onset c. Testing potential treatments on xenograph mice d. Results of Clinical trials of potential treatments e. Using Surveys to determine correlation between behaviors and cancer onset
Consider a hypothetical bacterial operon encoding genes needed for the degradation of compound X. Which statement is most likely to be true? I know the answer is B when X is abundant, the operon is on. But why is this? An explanation would be helpful.
A. when X is abundant, the operon is off B. when X is abundant, the operon is on C. this operon displays repressible, rather than inducible, expression.
D. the mRNA produced by this operon is monocistronic
Describe how information is stored and transmitted from cell to cell via mitosis. Your description should make use of all of the following terms: DNA, gene, allele, chromosome, chromatin, genome, DNA replication, (possibility of) mutation, sister chromatids, centromere. Do not describe the details of each phase of mitosis, just generally outline how the genetic information is stored and sorted into two new cells.
. You are interested in continuing the work of Dr Mendes. What is one additional question that you might logically ask about this issue? Justify the question that you propose by logically describing why this is an important question to ask. Design and describe how to run an experiment to test the question you proposed. Be very specific. Make sure that the design is feasible (no growing plants on Jupiter). Include the following: Â· Independent and dependent variables Â· Control variables Â· Equipment and supplies needed Â· Outline the basic protocol to follow. Â· Describe WHY and HOW you will manipulate variables
here is the full question:
Do soil microorganisms protect against crop disease?
The rhizosphere, the soil layer surrounding plant roots, is a complex community in which archaea, bacteria, fungi, and plants interact with one another. After plants are attacked by fungal or bacterial pathogens, soil from the rhizosphere may protect plants from future attacks. Such protective soil is called disease-suppressive.
Researchers investigated whether microorganisms were responsible for the protective effects of disease-suppressive soils. Disease-suppressive soil was obtained from an agricultural field in the Netherlands in which sugar beet crops had previously been attacked by a fungal pathogen, Rhizoctonia solani. Other soil was collected from the margin of the field. The researchers predicted that soil from the margin would not offer protection against pathogens.
The researchers then planted and raised sugar beets in greenhouses, using 5 different soil treatments. Each soil treatment was applied to 4 pots, and each pot contained 8 plants. The pots were inoculated with Rhizoctonia solani and placed in greenhouses kept at 20Â°C with a 16-hour light: 8-hour dark cycle. After 20 days, researchers determined the percentage of infected sugar beet seedlings for each soil treatment. The results of the experiment are shown in the table.
Percentage of Seedlings
with Fungal Disease
Soil from margin of field
Soil from margin of field
+10% disease-suppressive soil
Disease-suppressive soil heated
to 50âC for 1 hour
Disease-suppressive soil heated
to 80âC for 1 hour
(Data from R. Mendes, et al. Deciphering the rhizosphere for disease-suppressive bacteria, Science 332: 1097-1100 (2011)).
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