Questions
Explain the biochemical steps of what happens when someone falls into a swimming pool and is...

Explain the biochemical steps of what happens when someone falls into a swimming pool and is submerged for a period of 2 minutes.

Why do we sometimes administer Sodium Bicarbonate to patients during the resuscitation of cardiac arrest?

In: Biology

A 23-year-old woman presents to the OB-GYN office you work at. She was recently surprised to...

A 23-year-old woman presents to the OB-GYN office you work at. She was recently surprised to learn that she is pregnant. She estimates that she is about 8 weeks along. She tells you that she regularly drinks on the weekends with her friends. She asks you "Is that a problem? As long as I don't drink very much, I can still have a drink occasionally while I'm pregnant, right?"

In your initial post answer the following questions:

How would you answer her questions?

What types of abnormalities can be caused by alcohol, and how does genetics influence this?

In: Biology

Based on the research question, write an ecological hypothesis: Does habitat restoration affect the population stability...

Based on the research question, write an ecological hypothesis: Does habitat restoration affect the population stability of Fender’s blue butterflies?

In: Biology

1.describe southern and northern hybridization and the factors that influence it? 2.describe the clinical manifestations and...

1.describe southern and northern hybridization and the factors that influence it? 2.describe the clinical manifestations and pathogenesis of Staphylococcu aureus infections. How are they treated? 3.what is antiserum therapy, when is it used and what problems might arise from its use

In: Biology

1.what are the morphologies, physiology, virulence factors and diseases caused by Group A Streptococci, and What...

1.what are the morphologies, physiology, virulence factors and diseases caused by Group A Streptococci, and What are they cause by Streptococcus pneumoniae? 2. Describe in detail both direct and indirect ELISA immunoassays?

In: Biology

1. Which of the following refers to a cellular arrangement of bacterial cells? a. rods b....

1. Which of the following refers to a cellular arrangement of bacterial cells?

a. rods

b. coccus

c. palisades

d. morphology

2. A coccus that divides along two planes of symmetry would produce which arrangement?

a. diplococcus

b. tetrad

c. coccobacillus

d. streptococcus

3. Bacteria that display significant differences in shape, even within the same species, are said to be

a. streptococcal.

b. flexible.

c. pleomorphic.

d. pathogenic.

4. The primary point of staining bacterial cells is to increase the contrast between the cells and the background.

a. true

b. false

5. A staining technique that results in light organisms against a darkened background is a

a. Gram stain.

b. simple stain.

c. positive stain.

d. negative stain.

6. Which staining technique would provide the most accurate size of a bacterial cell?

a. negative stain

b. Gram stain

c. simple stain

d. All staining techniques would give equivalent results.

7. When preparing a bacterial smear growing on a Petri dish for staining you would

a. use a loop to transfer an entire colony to the slide.

b. use a needle to transfer a small amount of growth to the slide.

c. use a needle to transfer a small amount of growth to a loop of water on the slide.

d. use a loop to transfer a large quantity of growth to a drop of water on the slide.

8. Which of the following is a differential stain?

a. simple stain

b. Gram stain

9. Microorganisms are commonly found in soil, surfaces, and dust, but not on living surfaces like skin.

a. true

b. false

c. negative stain

d. All are differential stains.

10. The mordant in a Gram stain is

a. crystal violet.

b. Gram’s iodine.

c. ethanol.

d. water

11. If you correctly stain a mixture of Gram-positive rods and Gram-positive cocci, you would expect to see

a. purple rods and pink cocci.

b. pink rods and purple cocci.

c. purple rods and purple cocci.

d. pink rods and pink cocci.

12. Draw and label the three most common bacterial shapes.

13. Draw and label cocci growing as diplococci, tetrads, streptococci, and staphylococci.

In: Biology

Please correct my grammar's mistakes :) Please correct my grammar's mistakes, thanks! I chose to interview...

Please correct my grammar's mistakes :)

Please correct my grammar's mistakes, thanks!

I chose to interview Dinh, who is an active, assertive person and a business major at ACC. Although he is not a math and science major, he has already taken a lot of different science and math classes. These classes include algebra, general chemistry one and two, general physics one and two, and geometry, etc. Right now, he is taking statistics and investments. Dinh told me that he likes business world, where he has a chance to meet and communicate with different kinds of people and where winners and losers are determined every day. He thinks that the harshness and competition in the business world will make him progress every day to perfect himself in life and he enjoys that. Dinh is open and friendly in my view. He is not a close friend, but he was willing to help me when I invited him to my interview for math’s real world examples. He seemed very excited for the interview, and he said that he is confident in his abilities to answer my questions. Dinh likes real world’s examples and so he says that he can start to answer questions now.

Before conducting the interview, I told Dinh that he will be a main character of the interview and my job is just asking him questions and no more than that. The purpose of the interview discovers and knows about his thinking and thought process when he answers questions. Therefore, he has a right to express his thoughts, whatever he thinks that describes correct answers to questions; feel free to share his ideas and don’t be shy to explain questions.

In: Biology

Compare and contrast feautures across phylum: Porifera, Cnidaria, Ctenophora, Platyhelminthes, Nemertea, Mollusca, Annelida, Blastocoelomates (Phylums Rotifera,...

Compare and contrast feautures across phylum:

Porifera, Cnidaria, Ctenophora, Platyhelminthes, Nemertea, Mollusca, Annelida, Blastocoelomates (Phylums Rotifera, Nematode, Entoprocta), Arthropoda (Phylums Tardigrade, Onycophora), Echinoderms, Locophore (Phylums Phoronida, Ectoprocta, Branchiopoda), Protochordates (Phylums Hemichordate, Chordata)

What are the big issues related to their convergent evolution, solutions to the problem of their body plan?

What are their forms of development?

Diagram each phylum's water flow. C

ompare and contrast features across Phylums: circulatory system, gas exchange, feeding, syncytial or not, ciliated or not (in short)

Thank yoooou!

In: Biology

How do the epithelia between the esophagus and small intestine differ?

How do the epithelia between the esophagus and small intestine differ?

In: Biology

19) Core Concept: Information Flow- Explain how information from DNA results in the synthesis of a...

19) Core Concept: Information Flow- Explain how information from DNA results in the synthesis of a protein. Explain how information in the environment ultimately results in changes to gene expression.

20) Explain the steps in DNA recombinant technology (FROM GFP LAB). Include restriction enzymes, plasmids, heat shock, transformation and names of any enzyme that is needed in your answer.

21) Explain the purpose and/or what is happening at any step in the GFP lab protocols.

22) Predict how defects in the regulation of cell-cycle checkpoints would affect cells and explain how these defects relate to uncontrolled division in cancer and cancer progression.

In: Biology

DNA mutations can occur in a variety of ways. Choose one of the ways that DNA...

DNA mutations can occur in a variety of ways. Choose one of the ways that DNA mutations can occur that you are learning about this week, identify and briefly describe it.

Then, choose a genetic mutation (it can be from your textbook, one you are aware of, or one you learn about through your research of this topic), and describe the type of mutation that it involves.

Consider if it affects the ability of the organism to produce proteins correctly, if it alters part or an entire chromosome, etc. Provide a picture of a karyotype or subject with this mutation (use of internet photos is fine, but remember to give credit to the photographer/illustrator). It can affect humans, animals, plants, bacteria - there are lots of different kinds!

Discuss with your classmates potential practical effects that one might see with this mutation, versus others. Please be sure to review your posts for accuracy in the discussion of these mutations (keep in mind that opinions and blogs do not always provide factual information, try to rely on journal articles and peer reviewed scientific research).

De, A., Sen, S., Flora, C., Ibrahim, J., and Zauk, A. (2008). Beckwith-Wiedemann Syndrome in a Patient with Klinefelter Syndrome. The Internet Journal of Pediatrics and Neonatology, 10(2), 1-4. http://ispub.com/IJPN/10/2/7555

In: Biology

Describe two modern technological advances in genomics research and give an example of how they could...

Describe two modern technological advances in genomics research and give an example of how they could be used in research to solve a problem

In: Biology

For each of the following statements, indicate whether it is true of all, some, or none...

For each of the following statements, indicate whether it is true of all, some, or none of the various kinds of peroxisomes. Please first answer the question, then provide an explanation. I would appreciate it if you could type the answer and handwriting is often difficult to read.

5. Contains peroxide-generating chemical reactions.
a. It is true of all, because it is general property of peroxisomes.
b. It is true of glyoxysomes and some animal peroxisomes, because only they contain peroxide-generating chemical reactions.
c. It is true of none of the peroxisome kinds.

6. Contains the genes coding for luciferase.
a. It is true of all because all peroxisomes contain the genes coding for luciferase.
b. It is true of glyoxysomes and some animal peroxisomes, because only they contain the genes coding for luciferase.
c. It is true of none of the kinds, because fireflies and related bioluminescent organisms have luciferase protein present in their peroxisomes but DNA is not found in this organelle.

7. Contains urate oxidase.
a. It is true of all because all peroxisomes contain urate oxidase.
b. It is true of many animal peroxisomes and in some plant peroxisomes.
c. It is true of none of the peroxisome kinds.

8. Is a source of dolichol.
a. It is true of all because all peroxisomes are a source of as much as 50% of the dolichol found in cells.
b. It is true of glyoxysomes and some animal peroxisomes, because only they are source of dolichol.
c. It is true of none of the peroxisome kinds.

9. Is surrounded by a lipid bilayer.
a. It is true of all, because it is general property of peroxisomes.
b. It is true of glyoxysomes and some animal peroxisomes, because only they are surrounded by a lipid bilayer.
c. It is true of none of the peroxisome kinds.

In: Biology

Do carbohydrates cross easily a phospholipid membrane? What type of chemical bond maintains the carbon tail...

  1. Do carbohydrates cross easily a phospholipid membrane?

  1. What type of chemical bond maintains the carbon tail of lipids together?

  1. A biotechnology company asks you to attach a monosaccharide to a lipid. Which is the best way (which atoms?) to link the molecules together?

In: Biology

In the guide RNA, is there greater stringency for homology at the 5’ or 3’ end...

In the guide RNA, is there greater stringency for homology at the 5’ or 3’ end of the RNA?

Where, precisely, does the CRISPR/Cas9 system digest the target DNA?

What class of enzyme is Cas9

Name two other gene editing systems that are distinct from CRISPR/Cas. Give one reason why the CRISPR/Cas9 system is preferred by 9 out of 10 scientists that recommend editing genomes?

How many different types of CRISPR/Cas systems are there in bacteria and archaea?

In: Biology