In: Biology
Compare and contrast the extracellular matrix of animals and the cell wall of plants. Consider their functions and the types of molecules that make up these structures. What properties of these molecules help to fulfill these functions?
In: Biology
A patient with diabetes has a history of foot ulcer progressing to infection. Specifically, this is recurrent diabetic foot infection (DFI). That is, despite apparent success of the treatment the infection continues to reappear.
The initial diagnosis by the pathology laboratory uses microbiological investigation that has identified Staphylococcus aureus in this infection. Further simple analysis by PCR has revealed the presence of common toxins associated with S. aureus infections in the blood, skin and soft tissue and bone.
Describe a research plan you would undertake to identify:
if the recurrence of infection is due to a new infection or the same bacteria remaining present,
the molecular mechanisms used by this specific S. aureus isolate for its colonization,
the molecular mechanisms for its persistence and recurrent cause of DFI disease.
In: Biology
"Global Climate Change" refers to shifting trends in the long-term weather patterns ("climate") across the globe, and includes phenomena such as global warming. At its root is a steady increase in the atmospheric concentration of several gases called "greenhouse gases", some of which are released through burning fossil fuels such as gasoline, coal, and natural gas. One greenhouse gas is carbon dioxide, an input for photosynthesis and an output of cellular respiration. Your assignment for this Discussion Board to is investigate the following questions:
1.What is a greenhouse gas?
2.When and why is carbon dioxide considered a pollutant?
3.How do scientists know that humans are responsible for the
increasing levels of carbon dioxide in the atmosphere that lead to
climate change?
4.What are the consequences of increases in the concentrations of
carbon dioxide and other greenhouse gases?
5.What are some options suggested to help combat this issue?
In your Individual Post, label your answers #1-5 so it is clear
which question you are answering. Be sure to cite and reference
your sources in APA format so others can check them out when
responding to you.
In: Biology
The bacterial one-hybrid assay holds E. coli cells hostage until our protein of interest can active transcription and translation of enzymes from the HIS3 and URA3 genes. These enzymes are needed to produce Histidine and Uridine, which are both needed for cells to grow and divide. Make an estimate, based on enzyme kinetics and any other information you may need, of how many HIS3 and URA3 enzymes will an E. coli cell need to grow and divide at a normal rate. How many are needed when we add 10 mM 3-amino-1,2,4-triazole (3AT) to the growth medium as a competitive inhibitor of HIS3?
In: Biology
Course Culminating Activity Task 20-01 - Treatable
Diseases and Disorders
Select a treatable disease or disorder (human or other mammal) and
complete the following tasks to explore and understand the
disease.
3- Create a chart for the disease you have selected that shows the impact on: 1-family 2- employment 3- the individual 4-the economy 5-the media 6- health care system
4- Identify and describe a career that may be associated with the diagnosis or treatment of the disease/disorder. Provide the following information in your description:
In: Biology
In: Biology
Genetic engineering of microorganisms involved in MLF of wine has only been partially successful, why?
In: Biology
If the R group of an amino acid (AA) is a –CH2-OH then the name of this AA is
Select one:
a. Ser
b. Tyr
c. Ala
d. His
e. Trp
In: Biology
Autotrophy is MOST ACCURATELY defined as
Select one:
a. the synthesis of organic matter from inorganic materials using energy from light or oxidation of reduced molecules or elements.
b. the breakdown of organic matter to yield energy.
c. recycling of cellular structures.
d. the light driven assimilation of CO2 into organic matter.
A pot plant sits on a windowsill absorbing sunlight. How does a root cell (which is in the dark) obtain its energy for cellular function, such as active transport across its membrane?
Select one:
a. Carbohydrates are made in the leaves via photosynthesis and moved to the root
b. The root cell makes carbohydrates using the dark reaction (Calvin cycle) of photosynthesis
c. ATP is made within the leaves via photosynthesis and moved to the root
d. The root cell utilises infrared light to photosynthesise organic carbon molecules
For the successful production of NADPH in photosynthesis, what must occur?
Select one:
a. Coenzyme Q is reduced and transfers electrons from complex I to complex II.
b. The direct transfer of electrons from Photosystem II to the protein plastocyanin.
c. The passing of protons through NADP+ synthase from the stroma to the thylakoid lumen.
d. A second input of light energy at Photosystem I to produce electron donor molecules capable of reducing NADP+.
In the Calvin Cycle, the regeneration of Ribulose-1,5-biphosphate (RuBP) from 3-carbon compounds requires:
Select one:
a. Electrons from NADPH
b. Energy from ATP
c. Catalysation by rubisco
d. Oxidation of pyruvate
An anoxygenic photosynthetic bacteria is growing on a hydrothermal vent in the deep ocean. Which of the following is TRUE?
Select one:
a. It releases an oxygen molecule as a waste product
b. It uses hydrogen sulphide as the electron donor
c. It releases carbon dioxide as a waste product
d. It uses water from the surrounding ocean as the electron donor
Autotrophy is MOST ACCURATELY defined as
Select one:
a. the synthesis of organic matter from inorganic materials using energy from light or oxidation of reduced molecules or elements.
b. the breakdown of organic matter to yield energy.
c. recycling of cellular structures.
d. the light driven assimilation of CO2 into organic matter.
A pot plant sits on a windowsill absorbing sunlight. How does a root cell (which is in the dark) obtain its energy for cellular function, such as active transport across its membrane?
Select one:
a. Carbohydrates are made in the leaves via photosynthesis and moved to the root
b. The root cell makes carbohydrates using the dark reaction (Calvin cycle) of photosynthesis
c. ATP is made within the leaves via photosynthesis and moved to the root
d. The root cell utilises infrared light to photosynthesise organic carbon molecules
For the successful production of NADPH in photosynthesis, what must occur?
Select one:
a. Coenzyme Q is reduced and transfers electrons from complex I to complex II.
b. The direct transfer of electrons from Photosystem II to the protein plastocyanin.
c. The passing of protons through NADP+ synthase from the stroma to the thylakoid lumen.
d. A second input of light energy at Photosystem I to produce electron donor molecules capable of reducing NADP+.
In the Calvin Cycle, the regeneration of Ribulose-1,5-biphosphate (RuBP) from 3-carbon compounds requires:
Select one:
a. Electrons from NADPH
b. Energy from ATP
c. Catalysation by rubisco
d. Oxidation of pyruvate
An anoxygenic photosynthetic bacteria is growing on a hydrothermal vent in the deep ocean. Which of the following is TRUE?
Select one:
a. It releases an oxygen molecule as a waste product
b. It uses hydrogen sulphide as the electron donor
c. It releases carbon dioxide as a waste product
d. It uses water from the surrounding ocean as the electron donor
In: Biology
Why do more Black women die from cancer then White women?
Explain what lupus is and why African Americans have a higher incidence rate.
In: Biology
32- Motor neurons that carry information away from the brain or spinal cord are known as afferent neurons.
Select one:
True
False
33- At home, safe food-handling practices can be sorted into four basic categories: (1) cleanliness, (2) separation, (3) cooking, and (4) chilling.
Select one:
True
False
34- The maximum amount of air that can be moved into and out of the lungs during forceful breathing is called ________.
Select one:
a. vital capacity
b. tidal volume
c. residual volume
d. total lung capacity
35- If a person were unable to produce much of this substance, the gastric juices might destroy the stomach lining.
Select one:
a. chyme
b. HCl
c. mucus
d. pepsin
36- The pitch of the voice depends on the tension of the vocal cords.
Select one:
True
False
37- Which one of these agencies oversees the safety of poultry products in the United States?
Select one:
a. FSIS
b. ATF
c. WHO
d. FDA
38- The synaptic cleft is the narrow space between two neurons.
Select one:
True
False
39- Inflammation of the mucous membranes of the sinuses is called ________.
Select one:
a. asthma
b. sinusitis
c. laryngitis
d. respiratory distress syndrome
40- Carlotta developed indigestion and pain under her navel over the weekend. As the workweek progressed, the pain worsened and moved to a point in the lower right abdomen, and she started to vomit and experience nausea and fever. You suspect that she is suffering from ________.
Select one:
a. heartburn
b. colorectal cancer
c. appendicitis
d. peptic ulcer
41- This enzyme will break down starch into smaller subunits.
Select one:
a. pepsin
b. renin
c. lipase
d. amylase
In: Biology
In: Biology
Antibodies are proteins that are secreted out of the cell. If an NLS was genetically engineered to the C-terminus of an antibody, where do you expect to find it?
a. Outside the cell
b. ER
c. Cytoplasm
d. Nucleus
e. Another organelle
Can you please explain the question too. Thanks
In: Biology