Which one of the following statements is false?
A. rough endoplasmic reticulum (RER) does not contain ribosomes on its surface and is involved in phospholipid synthesis
B. an organelle is a specialized structure with specific cellular functions
C.the secretory pathway explains the movement of secretory proteins from the endoplasmic reticulum to the Golgi apparatus
D. the signal sequence is cleaved by signal peptidase and released into the ER lumen
E.signal recognition particles are composed of proteins and RNA that binds to signal sequences and targets polypeptide chains to the endoplasmic reticulum
Homework Answers
Option a is correct .
Statement 1 is false. Rough endoplasmic reticulum has ribosomes on the outer surface that's why they are called as rough. And as they have ribosomes so their function is to synthesise proteins.
The statement will hold true if rough is replaced with smooth.
Add Answer to:
Which one of the following statements is false? rough endoplasmic reticulum (RER) does not contain ribosomes...
hich of the following organelles are the destination for proteins synthetized by cytosolic ribosomes Peroxisomes, endoplasmic...
hich of the following organelles are the destination for proteins synthetized by cytosolic ribosomes Peroxisomes, endoplasmic reticulum, and the Golgi apparatus The Golgi apparatus, lysosomes, and the nucleus Peroxisomes, mitochondria, and lysosomes Peroxisomes, mitochondria, and the nucleus Mitochondria, lysosomes, and the nucleus What is the fate of N-terminus signal peptide after it directs the protein to the ER translocator O It is linked to the transported protein by S-S bond It is cleaved and then released into the membrane It...
Drag the terms on the left to the appropriate blanks on the right to complete the...
Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Terms can be used once, more than once, or not at all. Reset Help transport vesicle(s) Soon after initiation of translation of an mRNA coding for a secretory protein, the of the secretory protein is synthesized and is exposed on the surface of the ribosome. The signal recognition particle (SRP) contains the that marks this protein for into the endoplasmic reticulum cotranslational translocation...
Please answer all questions 2 After isolating the rough endoplasmic reticulum from the rest of the...
Please answer all questions
2 After isolating the rough endoplasmic reticulum from the rest of the cytoplasm, you purify the RNAS attached to it. Which of the following proteins do you expect the RNA from the rough endoplasmic reticulum to encode? (a) (c) soluble secreted proteins plasma membrane proteins ER membrane proteins all of the above (b) (d) -13 In which cellular location would you expect to find ribosomes translating MRNAS that encode ribosomal proteins? (a) (c) the nucleus in...
Chapter 4: A Tour of the Cell 5. Smooth endoplasmic reticulum (SER) lacks _, which gives...
Chapter 4: A Tour of the Cell 5. Smooth endoplasmic reticulum (SER) lacks _, which gives it a "smooth" appearance. 6. True or false: If false, make it a correct statement. The smooth endoplasmic reticulum con- tains many enzymes that allow it perform functions like detoxify circulating drugs. 7. Use Figures 4.14 (page 65 of your textbook) and 4.17 (page 67 of your textbook) to answer the following question. Place the following steps in the order in which they occur...
Which of the following does NOT take place in smooth endoplasmic reticulum? drug detoxification lipid synthesis...
Which of the following does NOT take place in smooth endoplasmic reticulum? drug detoxification lipid synthesis N-linked glycosylation calcium storage dephosphorylation of glucose For proteins being synthesized at the rER, all of the following takes place in the rER lumen EXCEPT: binding of chaperones cleavage of the signal sequence phosphorylation of mannose sugars formation of disulfide bonds addition of N-linked oligosaccharides
1. Transcription occurs in the a. Nucleus. b. Ribosomes of the Rough Endoplasmic Reticulum. c. Mitochondrion....
1. Transcription occurs in the a. Nucleus. b. Ribosomes of the Rough Endoplasmic Reticulum. c. Mitochondrion. d. Cell membrane. e. Smooth Endoplasmic Reticulum. 2. The monomers of DNA and RNA are a. amino acids. b. monosaccharides. c. nucleotides. d. fatty acids. e. nucleic acids. 3. Which of the following statements regarding DNA is false? a. DNA uses the nitrogenous base uracil. b. DNA is a nucleic acid. c. One DNA molecule can include four different nucleotides in its structure. d....
C. I will tell them that they have defective nuclear pore, and to consult a doctor...
C. I will tell them that they have defective nuclear pore, and to consult a doctor D. I will tell them to not open their eyes while swimming in salty water. 16. Which organelle is responsible for protein synthesis? A. Rough endoplasmic reticulum B. Smooth endoplasmic reticulum C. Golgi apparatus D. Ribosomes 17. When cells synthesis polypeptide, what comes next? A. The polypeptide is folded into active proteins by the rough endoplasmic reticulum (RER) B. The polypeptide is modified by...
The GTPase Dynamin is involved in which step of vesicular A) Binding of cargo molecules to...
The GTPase Dynamin is involved in which step of vesicular A) Binding of cargo molecules to cargo receptors B) Assembly of the Clathrin coat C) Pinching off the vesicle from the membrane D) Transport of vesicles along microtubules Which of the following events does not occur in the rough endoplasmic reticulum? A) Cleavage of the signal peptide by the signal peptidase B) Binding of chaperone proteins to misfolded or partially folded pathways C) Transfer of a pre formed oligosaccharide to...
29. Which of the following would be synthesized in and processed by the smooth endoplasmic reticulum...
29. Which of the following would be synthesized in and processed by the smooth endoplasmic reticulum and Golgi apparatus? A. lipids and steroids B. DNA polymerase and RNA polymerase C. lysosomal enzymes D. cytoskeletal proteins 30. Which of the following are processed in the Golgi apparatus? A. integral membrane proteins of the plasma membrane B. proteins that are secreted from the cell C. proteins that will be broken down by lysosomes D. all of the above E. none of the...
please answer all that you can 1. You have genetically engineered green fluorescent protein (GFP) containing...
please answer all that you can 1. You have genetically engineered green fluorescent protein (GFP) containing a KDEL sequence (GFP-KDEL). When GFP-KDEL is expressed in normal human fibroblasts and examined using fluorescence microscopy, the fluorescence appears diffuse across the cytoplasm. How would you explain this observations given that KDEL is supposed to be an ER-specific sorting sequence? A. This engineered GFP would not have a hydrophobic signal sequence to get it into the RER in the first place. B. The...
hich of the following organelles are the destination for proteins synthetized by cytosolic ribosomes Peroxisomes, endoplasmic reticulum, and the Golgi apparatus The Golgi apparatus, lysosomes, and the nucleus Peroxisomes, mitochondria, and lysosomes Peroxisomes, mitochondria, and the nucleus Mitochondria, lysosomes, and the nucleus What is the fate of N-terminus signal peptide after it directs the protein to the ER translocator O It is linked to the transported protein by S-S bond It is cleaved and then released into the membrane It...
Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Terms can be used once, more than once, or not at all. Reset Help transport vesicle(s) Soon after initiation of translation of an mRNA coding for a secretory protein, the of the secretory protein is synthesized and is exposed on the surface of the ribosome. The signal recognition particle (SRP) contains the that marks this protein for into the endoplasmic reticulum cotranslational translocation...
Please answer all questions
2 After isolating the rough endoplasmic reticulum from the rest of the cytoplasm, you purify the RNAS attached to it. Which of the following proteins do you expect the RNA from the rough endoplasmic reticulum to encode? (a) (c) soluble secreted proteins plasma membrane proteins ER membrane proteins all of the above (b) (d) -13 In which cellular location would you expect to find ribosomes translating MRNAS that encode ribosomal proteins? (a) (c) the nucleus in...
Chapter 4: A Tour of the Cell 5. Smooth endoplasmic reticulum (SER) lacks _, which gives it a "smooth" appearance. 6. True or false: If false, make it a correct statement. The smooth endoplasmic reticulum con- tains many enzymes that allow it perform functions like detoxify circulating drugs. 7. Use Figures 4.14 (page 65 of your textbook) and 4.17 (page 67 of your textbook) to answer the following question. Place the following steps in the order in which they occur...
Which of the following does NOT take place in smooth endoplasmic reticulum? drug detoxification lipid synthesis N-linked glycosylation calcium storage dephosphorylation of glucose For proteins being synthesized at the rER, all of the following takes place in the rER lumen EXCEPT: binding of chaperones cleavage of the signal sequence phosphorylation of mannose sugars formation of disulfide bonds addition of N-linked oligosaccharides
C. I will tell them that they have defective nuclear pore, and to consult a doctor D. I will tell them to not open their eyes while swimming in salty water. 16. Which organelle is responsible for protein synthesis? A. Rough endoplasmic reticulum B. Smooth endoplasmic reticulum C. Golgi apparatus D. Ribosomes 17. When cells synthesis polypeptide, what comes next? A. The polypeptide is folded into active proteins by the rough endoplasmic reticulum (RER) B. The polypeptide is modified by...
The GTPase Dynamin is involved in which step of vesicular A) Binding of cargo molecules to cargo receptors B) Assembly of the Clathrin coat C) Pinching off the vesicle from the membrane D) Transport of vesicles along microtubules Which of the following events does not occur in the rough endoplasmic reticulum? A) Cleavage of the signal peptide by the signal peptidase B) Binding of chaperone proteins to misfolded or partially folded pathways C) Transfer of a pre formed oligosaccharide to...
29. Which of the following would be synthesized in and processed by the smooth endoplasmic reticulum and Golgi apparatus? A. lipids and steroids B. DNA polymerase and RNA polymerase C. lysosomal enzymes D. cytoskeletal proteins 30. Which of the following are processed in the Golgi apparatus? A. integral membrane proteins of the plasma membrane B. proteins that are secreted from the cell C. proteins that will be broken down by lysosomes D. all of the above E. none of the...
Most questions answered within 3 hours.
-
A 0.0510 M solution of an organic acid has an
[H+] of 7.50×10-4M .
What is...
asked 28 seconds from now -
The completed Lewis structure of CO2 contains a total
of 0,1,2,3,4,5,6,7,8 covalent bonds
and 0,1,2,3,4,5,6,7,8 lone pairs.
NOTE:...
asked 2 minutes ago -
what is the profit-maximizing output condition that a
monopolistically competitive firm must satisfy? a) price charged...
asked 3 minutes ago -
Consider the set of ordered pairs shown below. Assuming that the
regression equation is y=3.513+0.429x and...
asked 25 minutes ago -
1. (A) Write two
structural (constitutional)
isomers of C4H8F2?
Please show all of
the
asked 27 minutes ago -
Objective: Practice converting a Boolean logic
expression into it’s truth table and to show the implementation...
asked 24 minutes ago -
1) Name the three holes located in the greater wing of the
sphenoid bone in order...
asked 28 minutes ago -
For the following reaction set-up, which type of hydrocarbon
product would form? 1,4-hexadiene + two Cl2...
asked 30 minutes ago -
Consider the following method that is intended to determine if
the double values d1 and d2...
asked 43 minutes ago -
could someone please post clear drawings of the three structures
in the equilibrium mixture of D-glucose...
asked 49 minutes ago -
Using the Properties of Order show that 5n5 +
4n4 + 6n3 + 2n2+ n +...
asked 53 minutes ago -
What is experiential learning and how is it helpful for teaching
leadership, and interpreting group dynamics?...
asked 52 minutes ago