1. Draw the peptide DCTEVKKR at a ph 7.4 in the trans configuration.

2. Consider the peptide from #1 for the questions below.  

Calculate the pI of the above peptide. (I recommend showing your work – you can attach it on a separate sheet of paper or insert pictures).

3. Based on it’s sequence of amino acids and the answer to (2) above, suggest a possible function for the peptide.

4.What interactions would contribute most to tertiary structure? Explain your choice.

5.If a neutral mutation occurred, what do you think the peptide might be changed to? Explain your choice. (Multiple correct answers are possible).

what is the evidence supporting animal evolution from a protist ancestor? be sure to identify the protist ancestor and supergroup of both the protist ancestor and animal group?                                                                    2. if hydra live as a colony what cepecialization do different individules preform? plz i need answer

Custom made primers are shipped as DNA powders. A student received a tube containing 19.5 nmoles of primer. To make 75 µM primer solution, she needs to add ___ µl water to the tube.

What roles can glial cells play?

Immunity and mechanical support

Mechanical support and ionic - balance of the extracellular space

Ionic balance of the extracellular space and myelination

and a b only

a, b and c

You are a microbiology lab technician and you need to quantify the viable cell concentration in your stock culture before beginning an experiment. Since you do not know the range, you perform a serial dilution over several orders of magnitude. You use the pour plate method and plate 1 ml for each dilution level, in duplicate. Give the most accurate value for the number of viable cells in the original stock culture, in CFU / ml. Just enter a number, do not type the units!

Since you want the practice, you attempt a count for all plates, even though some are likely too numerous to count. Only use values that give you the best accuracy. That means only use values that are a "countable number" of colonies (see text section).

Dilution series colony counts:

1:10: 860, 745

1:100: 123, 114

1:1000: 11, 15

1:10,000: 2, 4

Matching

Explain the growth curve of microorganism and the factors involved in each phase. ​

Discuss the factors affecting the permeability of the plasma membrane. Cite references

EXPLAIN how the PMF is produced and Describe TWO ways it is used to do work.

Reflect on the following questions in a 150-300 word response:

How do cooperation and sociality in non-human primates compare to humans? In what ways are they similar? In what ways are they different? What is the most surprising thing about cooperation and sociality in non-human primates to you?

Remember to cite your references, as needed.

What is Eutrophication and how it can impact the microbial diversity in ecosystems?

What is the bacterial biofilm? What are the conditions that favor its formation and its disassembly? And what is its medical importance?

Complete the table above on the regions of the neuron, their primary function(s), and a specific protein that supports that function. Explain your choice of protein.