Homework Help for Biology

Write in your own words, article "smart drugs are here should college students be allowed to use them"? by Princess Ojiaku from Washington Post. Write 1-4 paragraph about how adderall plays a major role in students health. And how does adderall effects the human heart cardiovascular.

After assiting your asthmatic patient with administration of his beta 2 specific meds. You may expect to observe which of the following side effects?

Tachycardia

Fainting or dizziness

Respiratory depression

Hypertension

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

Chronic brochitis

Pneumonia

Emphysema

Asthma

During initial assessment of an adult’s 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 can’t 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

Flail chest

Pulmonary contusion

Tension pneumothorax

Spontaneous pneumothorax

Compare and contrast the stucture of the reproductie tracts of male and female sharks, rabbits and humans.

(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

Select the following mechanisms or factors that are involved in the regulation of gene transcription

A. Proteasome degradation

B. Histone modification by acetylation

C. Leucine zipper transcription factors

D. A and B and C

E. A and B

F. A and C

G. B and C

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: · Independent and dependent variables · Control variables · Equipment and supplies needed · Outline the basic protocol to follow. · 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 20°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.

(Data from R. Mendes, et al. Deciphering the rhizosphere for disease-suppressive bacteria, Science 332: 1097-1100 (2011)).

•Plasma membrane (asymmetric) is derived from ER membrane (symmetric). How is a symmetric membrane converted into an asymmetric one?

•How might the asymmetric distribution of lipids in the plasma membrane contribute to its function?

In SSP-PCR, why is it important to determine genomic DNA concentration and quality for interpretation of the test results?

Describe the stages of gene transcription. Genes have special internal DNA sequences that form hairpins and specify a transcription pause. Explain in a mechanistic manner how these sequences affect the rate of transcription and discuss their potential benefits for transcription and translation.

why food residue smells when it becomes into feces?

Why does the thoracic cavity expand in volume?