Question

[I] For proteins found in cell membranes indicate what part of the membrane (surface, transmembrane or...

[I] For proteins found in cell membranes indicate what part of the membrane (surface, transmembrane or ??) they are in and list some of their functions. [II] (A) Explain the function of an enzyme. (B) Explain why enzyme activity is pH dependent, to do so (1) Define Optimum pH for enzyme activity and (2) Explain why enzymes only function at or within a few tenths of a pH unit from their Optimum pH.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Answer:

A) Enzymes are organic impetuses that bring down the initiation vitality of the response.

(B) Enzymes are pH subordinate. The pH reliance of the action for a catalyst is because of protonation condition of charged amino acids. On the off chance that pH is changed, the amino acids looses their charge, which results in the denaturation of the catalyst structure in this way making them inert.

(C) Optimum pH is the pH at which a protein works its best. The ideal pH for a chemical relies upon where it ordinarily works. For instance, intestinal proteins have an ideal pH of about 7.5.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Discuss the various functions of membranes and identify the membrane components (i.e. lipids or proteins) that...
Discuss the various functions of membranes and identify the membrane components (i.e. lipids or proteins) that are associated with each function Describe the evidence that is inconsistent with early models of the cell membrane which suggested the presence of protein layers on the extracellular and cytosolic sides of the membrane Describe the key features of the fluid mosaic model Discuss the different ways in which lipids move within membranes, discussing the relative frequency of such movements and ways in which...
1.There is a transmembrane α-helix with 28 amino acids that spans the cell membrane exactly. What...
1.There is a transmembrane α-helix with 28 amino acids that spans the cell membrane exactly. What is the width of the cell membrane? 2.Why can the Proline residue be considered a helix breaker? Draw to explain your answer. 3. Why is large portion of Ramachandran space empty for proteins?
1- Nonreceptor tyrosine kinases are: Select one: a. Transmembrane receptors b. Membrane proteins with no enzymatic...
1- Nonreceptor tyrosine kinases are: Select one: a. Transmembrane receptors b. Membrane proteins with no enzymatic activity c. Enzymes that phosphorylate serine and threonine residues d. Peripheral membrane enzymes that associate with receptors e. Inhibitors of transmembrane receptors 2- Which of the following statements about MAP kinase pathways is FALSE? Select one: a. MAP kinases phosphorylate serine and threonine residues b. MAP kinases can be activated by tyrosine kinases c. MAP kinases are present in all eukaryotic cells d. MAP...
Question 8. A transmembrane protein uses a β barrel structure to span the cell membrane. How...
Question 8. A transmembrane protein uses a β barrel structure to span the cell membrane. How can amino acid mutations in a protein within this β barrel structure affect interactions with the membrane and why? (Up to 50 words) Question 9. Haemoglobin is a protein that carries oxygen in our red blood cells. Sickle cell anaemia is a genetic disease in which Glu at position 6 of haemoglobin is mutated to a Val, rendering haemoglobin non-functional. (i) What type of...
The pH of the secretions in the human stomach is unique in its extreme acidity (pH~2,...
The pH of the secretions in the human stomach is unique in its extreme acidity (pH~2, upon food consumption typically). Pepsin, an amidase, is the main enzyme produced in the stomach and it begins the general digestion of proteins by hydrolyzing amide (peptide) linkage between amino acids. A) What would happen to most other enzymes and proteins at a pH so low? B) What types of amino acid interactions are most affected by such a low pH? C) Which level...
7.)In G proteins, which form of the guanyl nucleotide is bound in the unactivated state? a.)...
7.)In G proteins, which form of the guanyl nucleotide is bound in the unactivated state? a.) GTP b.) GDP c.) GMP d.) dGTP e.) None of above 8.)which of the following amino acids can be phophorylated? a.) tyrosine, serine, theronine b.) tyrosine, serine, tryptophan c.) serine, threonine, asparagine d.) histidine, serine, phenylalanine e.) tyrosine, methionine, typrtophan 9.) most signal molecules: a.)easily diffuse through the membrane and bind to a receptor in the cytoplasm b.) bind to membrane receptors and transmit...
Please answer all questions if you can. Thank you in advanced! 1. Compare and contrast how...
Please answer all questions if you can. Thank you in advanced! 1. Compare and contrast how secondary structure forms in folded proteins and folded RNA molecules 2. Assume that a bacterial genome contains 5000 genes. Do a “back of the envelope” calculation to estimate the size (number of nucleotides) of the genome of this bacterium. In your answer briefly demonstrate your knowledge of genes. 3. Describe the design of the DNA sequence of an artificial chromosome in a typical eukaryote...
Cell biology 1. Briefly describe what occurs in the four phases of the cell cycle (G1,...
Cell biology 1. Briefly describe what occurs in the four phases of the cell cycle (G1, S, G2, M). 2. How does cyclin regulate cyclin-dependent kinases (Cdks)? Why do Cdks require cyclin? 3. Mitogens are involved in cell signaling pathways which promote cell division by the production of cyclin. Using the figure 18-14 from your book (which is on the right), answer whether the expression of genes required for cell proliferation will be increased or decreased under the following scenarios....
1. Which sentence best defines signal transduction in a biochemical context? a. Alteration of cell functions...
1. Which sentence best defines signal transduction in a biochemical context? a. Alteration of cell functions in response to the environment b. Generation of a chemical change in response to information c. Induction of cell death upon nutrient starvation d. Responses to stimuli 2. Which statement is correct? a. G protein-coupled receptors produce second messengers indirectly while receptor enzymes catalyse second messenger generation b. Second messengers stimulate the activity of G protein-coupled receptors. c. Receptor enzymes produce second messengers through...
Part III – Something's Not Right “It’s good to have you home, honey. I missed you....
Part III – Something's Not Right “It’s good to have you home, honey. I missed you. How was the flight?” Stacey had come to the airport to pick Frank up and she leaned over to kiss him as he climbed into the car with his luggage. “How were the meetings? You look tired,” she added. “The past week was intense and I am exhausted. I thought I would manage some R & R during the trip, but no such luck....
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT