Describe the physical properties of the "gate" in an ion channel, including what amino acids make the gate. Please include how it is opened and closed.
Describe the physical properties of the "gate" in an ion channel, including what amino acids make...
Identify the structure of amino acids, and describe the process by which they join together to form polypeptides. Describe the 4 different groups of amino acids and their properties (Neutral, Polar, Acidic, Basic). Describe the levels of structure of proteins (primary, secondary, tertiary, and quaternary), including what bonds and interactions occur at EACH level. Describe denaturation of a protein and indicate how temperature and pH affect the protein functions. Describe the major functions of proteins
Describe the chemical properties of amino acids and discuss how they can affect the final structure of a folded protein. In your answer, give examples of amino acid substitutions that could cause changes to a protein’s structure and function
1. Define membrane potential. 2. Describe how membrane potential is established. What physical feature of the plasma membrane is essential for the establishment of membrane potential? 3. Describe how membrane potential is maintained. 4. Write a number that represents resting membrane potential. 5. If a gated sodium ion channel is opened, membrane potential is changed. Tell the direction of the change. 6. If a gated potassium ion channel is opened, membrane potential is changed. Tell the direction of the change.
12. Amino acids are building blocks of proteins. Which statement best describes the physical properties of the following amino acid? A) high melting points and low solubility in water B) large dipole moments and no hydrogen bonding C) high melting points and large dipole moments D) low solubility in water and small dipole moments E) small dipole moments and are hydrophobic
which amino acids restrict alpha helical or beta pleated sheets formation, what are the properties that they have that make them do so.
describe the basic structure of an amino acid. what classes of amino acids are there?
1. Summarize the main features or characteristics of the genetic code, including start & stop codons. 2. What is meant by base pair “wobble” and why might it be beneficial? 3. Describe the synthesis (and specificity) of aminoacyl-tRNA’s. 4. Name & describe the details in each of the three stages of protein synthesis, including the structure & functions of ribosomes and any factors involved. 5. Illustrate and/or describe the general structural, physical and/or chemical characteristics of amino acids. 6. Describe...
what is the effect of double bonds (unsaturation) on the physical properties of fatty acids? tell what the effect is, then briefly explain why/how the double bonds have this effect
Why are nucleotides a good molecule to make DNA out of, while amino acids are good for making proteins? A good answer will include: -how nucleotides compare to amino acids in terms of diversity of shape and feel -how the structure and funciton of DNA compares to the structure and function of proteins -what is the 'job' of DNA? why are the nucleotides good for allowing DNA to carry out its functions? what is the job of a protein? how...
Pls answer fast Discuss how the properties of acidity, basicity, and polarity arise for some amino acids. 8. How does water interact with hydrophobic and hydrophllic molecules? How does water interact with amino acid side chains, and how does this facilitate the folding of proteins? 9. Describe how amino acids are linked together to form protein chains. 10. What does the Ramachandran plot describe? How is it useful in describing protein structure? 11. What physical forces act on the amino...