Even organisms whose embryos are conditionally specified must have at least one autonomous specification event. Why?
In: Biology
How might RBC production be altered to compensate for changes to hemoglobin that result in an abnormally high affinity for O2?
In: Biology
Six people had submitted urine samples to the laboratory. The samples were given at the same time, and the amount of urine was equal in all samples. Your task is to help with the information
below about the different test subjects, analyze what each person's urine sample should show. Background information:
1. One person was completely healthy
2. A person suffered from untreated diabetes
3. One person worked in a factory with hot and dry air
4. One person produced too little antidiuretic hormone
5. A person suffered from a hereditary defect on the nephron's basement membrane (it is too sparse)
6. A person has urinary tract infection
Please read about the function of the kidneys and its parts and how the function is regulated. Describe how much urine the people in question would have, and how one might test its properties. It can be good to also search on the internet.
You must explain in detail and in a nuanced manner the meaning of concepts and models that relate to the kidney structure and function linked to the scenarios set in the question, also highlight specific methods for testing urine properties in all situations and explain why you can use these tests in conjunction with these scenarios. The report should also have a clear structure with a red thread, and that is easy to follow in the text. You use different types of sources and make well-founded and nuanced assessments of the credibility and relevance of the information and sources.
In: Biology
In: Biology
How has our cultural behaviour affected how we evolved from archaic hominins to modern humans?
What did our ancestors achieve that they would not have
otherwise were it not for our
cultural adaptations?
In: Biology
Describe how transfer RNAs (tRNAs) fulfill their role in protein synthesis. Give an example.
In: Biology
At the end of the electron transport chain, all of the following statements are correct, EXCEPT:
Select one:
a. produce most of the ATP needed for life
b. The oxygen taken in during respiration is used to produce carbon dioxide during the Kreb cycle.
c. oxidize glucose metabolites to produce carbon dioxide, water and ATP
d. the electrons combine with oxygen and protons to form water
In: Biology
In: Biology
Describe the role of the bifunctional enzyme in the reciprocal regulation of glycolysis and gluconeogenesis.
In: Biology
1. Antibiotics are more effective when the bacteria causing an infection are actively growing. Why do you think this is? During which phase of growth( lag,log,stationary,or death) do you think antibiotics are most effective?
In: Biology
Bower birds are unique to Australia. These ground dwelling birds build elaborate grass nests and decorate them with brightly colored objects (often bits of trash and plastic) to attract a female. The birds use all sorts of colorful items and arrange their displays to try to be most appealing to the female (either using all one color of item or creating a rainbow jumble of plastic trash!) and arrange them artfully to attract females. The females choose their mates based on the brightness and elaborateness of the male’s nest displays. Why might these birds have evolved into such fantastic animal architects?
In: Biology
In: Biology
In: Biology
What is CreERT2? Give an example of how it can be used
In: Biology
First outline the general scheme for signal transduction or the "players" involved in transmitting a signal across a membrane. Explain how a signal transduction system amplifies the original signal. Then explain how membrane fluidity and induced changes in protein structure are critical for this signaling mechanism.
In: Biology