Questions
Explain how the ATP generated by ATP synthase in the mitochondrion can be used in other...

Explain how the ATP generated by ATP synthase in the mitochondrion can be used in other parts of the cell?

In: Biology

Find at least 20 differences between Gram Negative and Gram Positive bacteria and list them in...

Find at least 20 differences between Gram Negative and Gram Positive bacteria and list them in a table form or number the differences from 1 - 20.

In: Biology

Ms. Johnson, age 57, was referred to the gastroenterologist for chronic digestive problems. For at least...

Ms. Johnson, age 57, was referred to the gastroenterologist for chronic digestive problems. For at least a year, she said, her stomach ached after eating a small meal. It seemed like the dull pain she experienced, and the sensation of fullness, had increased recently. Ms. Johnson also felt abdominal cramping, and sometimes nausea, at times other than after eating.

After taking a complete history and performing a physical examination, the gastroenterologist ordered several tests. Her conclusion was that Ms. Johnson had chronic gastritis caused by an infection with a bacterium.

QUESTIONS

1. Which bacterium is the most common cause of chronic gastritis?

2. Explain how the bacteria survives in the harsh acidic environment? (mention the enzyme it uses and how it causes damage)

3. What is the pathophysiology behind chronic gastritis?

4. What are the protective factors in the stomach?

5. What are the damaging factors in the stomach?

6. What other conditions (other than the bacteria) can cause chronic gastritis?

7. Mention at least two manifestations and two complications of chronic gastritis.

8. What is peptic ulcer disease? How is it different from gastritis?

In: Biology

Question Regarding RFLP marker I have an RFLP marker for a family with 2 parents and...

Question Regarding RFLP marker

I have an RFLP marker for a family with 2 parents and 4 children. The gender of the parents are not told

1. Child 1 has 3 bands, how to determine if that child has trisomy of the chromosome due to a non-disjunction during Meiosis II or Meiosis I and how to tell which parents gametes caused this parent 1 or parent 2.

2. How to determine which of the children is a half sibling with only 1 biological parent

3. Child # 4 is missing information, how to tell which information that child is missing

In: Biology

First make a recommendation for which antibiotic is best to prescribe for each bacterium and which...

First make a recommendation for which antibiotic is best to prescribe for each bacterium and which antibiotic could treat all bacteria?

  • Bacillus subtilis:
  • Escherichia coli:
  • Salmonella enteritidis:
  • Staphylococcus aureus:

In: Biology

How would you describe the differences in appearance between a phase contrast image and a DIC...

How would you describe the differences in appearance between a phase contrast image and a DIC image of a cheek cell?

In: Biology

Suppose a bacterium had the opportunity to form a glycocalyx, a flagellum, a pilus, or a...

Suppose a bacterium had the opportunity to form a glycocalyx, a flagellum, a pilus, or a spore. Which do you think it might choose? Why?

Explain in 1-2 paragraphs

In: Biology

​​​​​​Explain how communicating the cardiovascular system to a patient is different from how you would explain...

​​​​​​Explain how communicating the cardiovascular system to a patient is different from how you would explain the same system to a medical colleague.

In: Biology

Discuss the role of economics in the debate regarding the way we should interact with the...

Discuss the role of economics in the debate regarding the way we should interact with the environment. Your answer should demonstrate a clear understanding of the issues presented in the text. Be as clear and detailed as you can.

In: Biology

Calculate the Nernst potential for each ion, the membrane potential, and driving force for each of...

Calculate the Nernst potential for each ion, the membrane potential, and driving force for each of

the following examples:

Intracellular ions: [Na+]= 12 mM, [K+]=145 mM, [Cl-]=15 mM, [Ca2+]=250 nM

Extracellular ion: [Na+]= 150 mM, [K+]=2.9 mM, [Cl-]=150 mM, [Ca2+]=7 mM

In: Biology

Fill in the blanks in the table below: Monomer Polymer Name examples of some polymers of...

  1. Fill in the blanks in the table below:

Monomer

Polymer

Name examples of some polymers of this type

Nucleic acid

RNA

___________

      Amino acids

Enzymes

_____________

Starch

Cellulose

  1. Highlight the correct answer for each pair: Which is bigger, a monomer or a polymer? an amino acid or a protein? a monosaccharide or a polysaccharide? a nucleotide or DNA?
  2. Fill in the blanks: Condensation reactions ______________ (make or break?) polymers by __________ (adding or removing?) water.
  3. Name an example of a polysaccharide. What is the name of the monomer that comprises this polysaccharide?
  4. What is the function of the polysaccharide you named in #4? Where is it found (animals or plants)?

In: Biology

List the factors that influence a child’s development of a secure attachment. Pick two of them...

List the factors that influence a child’s development of a secure attachment. Pick two of them and explain how they impact development of secure attachment.

In: Biology

How does translation begin in a prokaryote?  Eukaryote?  How does the protein chain get made?  How does termination occur?

How does translation begin in a prokaryote?  Eukaryote?  How does the protein chain get made?  How does termination occur?

In: Biology

1. Which of the following statements is attributable to Georges Cuvier? Select one: a. If an...

1. Which of the following statements is attributable to Georges Cuvier?

Select one:

a. If an organ is used it strengthens and grows; if it isn’t used it weakens and shrinks

b. Slow subtle processes, acting over long periods of time, can have a dramatic effect

c. Fossils in older sedimentary rock strata bear less resemblance to modern organisms than those from recent strata

d. Geological processes operating today are the same as those that have operated in the past

2. In science, a theory is an idea that

Select one:

a. is a speculation supported by a rational argument.

b. has been extensively tested and supported by experiments and observations.

c. is also known as a hypothesis.

d. is consistent with general observations but hasn't been directly tested.

In: Biology

What is the chief source of the difference in the conversion of energy into useful work...

What is the chief source of the difference in the conversion of energy into useful work of the cell (efficiency) between a cell’s oxidation of glucose (~40%), compared to oxidation of glucose by combustion in air (0%)?

In: Biology