• In your own words (and approximately 250 words), explain why adult haemoglobin (HbA) is better suited for its job as the oxygen-carrying protein in red blood cells compared with myoglobin and the sickle cell form of haemoglobin (HbS). In addition, how does foetal haemoglobin (HbF) compare and why do we have this form of Hb??

Include in your answer:

• An introduction to haemoglobin (HbA) and the way in which its structure underlies its function.
• The way in which Mb differs from HbA and thus why it is unsuitable for the job HbA does.
• The way in which HbS differs from HbA, the consequences of this and thus why it is less suitable for the job HbA does.
• The way in which HbF differs from HbA and what its function is.

Phenal red glucose, lactose, and sucrose fermentation tests are valuable because, select all that apply

a. Helps distinguish species of bacteria that are different, but look the same under the microscope

b. Characterize metabolic strategies of newly discovered bacteria

c. These fermentation tests can identify an organism with no other information

d. Determines which sugars an organism can ferment

I answered d and only got partial credit, need help figuring out the other answers. thanks

Compare and contrast the mechanisms and locations of the effects of peptide and amine hormones and steroid hormones. (Answer in table form if you wish.)

Calcium plays a role during contraction of both skeletal and cardiac muscle, but there are important differences in the mechanisms leading to increased calcium concentration and contraction between both muscle types. Could you explain them?

Describe the general pathways and end products of carbohydrate and lipid metabolism in each of the following mammalian tissues: a) Liver b) Adipose c) Muscle (skeletal and heart) d) Brain tissues e) Blood

How is glutamine used in nitrogen metabolism and Why is the activity of glutamine synthetase tightly regulated?

what are the effects of treachery smoking and secondary smoking.

How does NAP1/BI/027 vary from other C. difficile strains? 6 marks

List the compounds used as energy sources by each of the following: a) Skeletal muscle b) Cardiac muscle c) Brain

I have a few general questions

Pulmonary circulation: What is it? What is the specific purpose? What structures are involved? What's the function?

Lymph Nodes: What is it? What specifically does it do? Where is it found specifically?

Explain why there are different blood groups ALSO why is it that a person with Blood type O is incapable of receiving blood from blood type B?

Lastly

Describe the circulatory system between avian and non avian reptiles what are the main differences and why do those differences exist?

Imagine you discover a new organism. What fundamental feature(s) would tell you it is a member of the superphylum Ecdysozoa? What features would allow you to assign it to one of the three ecdysozoan phyla ?

Many emerging infectious diseases are zoonotic diseases and tracking down viral origins and reservoirs can be challenging. This video illustrates both the tremendous strides we have made in our understanding of viruses and how fragile humankind remains in the face of infectious agents

1.If you were in charge of distributing one-hundred million dollars in research funds but could only chose one viral disease to provide for, which disease would you endow and why?

2.How do you think the medical and scientific community should use your millions? The Age of Viruses (Links to an external site.)Links to an external site. (Video, 50:39 mins)

What are the 2 key enzymes involved in nitrogen fixation and how does molecular oxygen affect the reductase complex, also how is this overcome?