What would most likely happen if the NLS signal sequence was removed from a protein that still contained a mitochondrial localization sequence and an SRP signal sequence? a) The protein would localize to the nucleus b) The protein would be retained in the ER c) The protein would localize to the mitochondria d) The protein would remain in the cytoplasm e) The protein would be secreted from the cell

Q: 10. When a primary signal needs to sent to most cells throughout a multicellular organism, the…

A: Endocrine glands, which are made up of  specialised cells that release substances  used in…

Q: Which of the following statements is true?   Question 9 options:   a)  Executioner caspases are…

A: Executioner caspases are a group of caspases that are responsible for the dismantling of the cell…

Q: A protein is going to be associated with the cytosolic leaflet of the plasma membrane. This protein…

A: All cells are covered by an external membrane called plasma membrane which is also known as cellular…

Q: Consider a mutant version of a cell-surface receptor. This mutation does not affect the amount of…

A: The initial step in the vesicle transport mechanism involves the budding process to generate…

Q: Following on from the last question, what assays could you do to find out if your mitochondria are…

A: Succinate dehydrogenase is an essential enzyme that connects oxidative phosphorylation and the…

Q: For each protein below, briefly explain whether it would or would not be required for the fusion of…

A: The peroxisome is formed by the synthesis and assembly of membrane proteins and lipids. The…

Q: If tryptophan is in high levels, will transcripition stop or initiate?

A: Transcription is a process in which a particular segment of DNA is copied into RNA by the enzyme RNA…

Q: Explain the answer

A: Francis Jacob and Jacques Monad proposed a concept in 1961, inorder to explain induction and…

Q: Match each one (they can be repeated): 1) Plasminogen- Plasmin 2) Pro-insulin- Insulin 3) CFTR…

A: Transcription and translation are two crucial mechanisms of all living cells. The enzyme  RNA…

Q: TBP stands for?a) TATA box polymeraseb) TATA-box binding proteinc) Transcription associated factord)…

A: TBP is a type of a protein that helps in the process of transcription. Transcription is the process…

Q: A molecule that terminates or opposes a phosphorylation-mediated pathway would be a ... O a)…

A: Introduction: The phosphorylation reaction occurs in cascades or series, with one enzyme activating…

Q: Glucose uptake 100. 50. 25. 1.5mM 6mM 3mM 1 2 3 4 5 6 7 8 9 Extracellular conc. of Glucose Can't…

A: The picture shows the relationship between glucose uptake and extracellular glucose concentration.…

Q: Synaptic transmission requires a vast number of molecular interactions taking place on both ends of…

A: Pre-synaptic events:- These are the events which occurs in neurons which are sending…

Q: Which statement is TRUE of the CRM (cis-regulatory module)? a) it codes for transcription factors…

A: The cis regulatory elements control gene expression at various developmental stages.

Q: A transcriptional activator protein regulates gene expression in a) cisb) trans

A: The objective of the question is to understand how a transcriptional activator protein regulates…

Q: Each intracellular fusion of a vesicle with a membrane requires a SNARE protein on the vesicle…

A: SNARE protein functions to form vesicles with plasma membrane to form exocytosis. This is common in…

Q: Is invertase intracellular or extracellular? Or both?

A: All enzymes are proteins that bind to a specific substrate and form a product. They are involved in…

Q: Based on the UCP1 protein structure and the figure above, what are the likely chemical properties of…

A: UCP 1 protein: The UCP1 (uncoupling protein 1) protein is a mitochondrial protein found in brown…

Q: ccording to the “Hawaiian Punch" principle, different compartments of the ecretory and endocytic…

A: According to the "Hawaiin punch" principle, multiple secretory and endocytic compartment pathways…

Q: If tryptophan is in high levels, will transcripition stop or initiate?

A: DNA maintains genetic material in the nucleus of cells as in the usual term that state to define as…

Q: yclin-dependent kinases are present during   Question 4 options:   A)  M.   B)  G1.   C)  G2.…

A: Cyclin-dependent kinases (CDKs) play a central role in the regulation of the cell cycle, which is…

Q: What's the role of VDAC1 mitochondrial protein in human diseases?

A: Mitochondrial proteins are proteins present within the mitochondria of cells, including within the…

Q: A cytokine/growth factor that induces inflammation and promotes cell death. a) Cdk1 Ob) TNF O c)…

A: Tumor necrosis factor (TNF) is a cytokine that plays a critical role in the inflammatory response.…

Q: Which describes an enzymatic activity/biochemical function of importin-beta?     facilitate…

A: Introduction : Importin beta are known as a type of karyopherin proteins which mediates the…

Q: You’ve just come from your annual physical and are alarmed to find that you’ve developed a number of…

A: Lipids are an important nutrient for the normal functioning of the body. The lipids form an integral…

Q: protein

A: a ) the organic properties of a protein atom rely upon its actual collaboration with different…

Q: Each type of molecule listed below is recognized by a specific class of nuclear import receptor…

A: Importin and exportin refer to the nuclear transport receptors that are responsible for the…

Q: Which sequence is most likely to be found in a promoter? a) CGGTGTATATCGTAC b) GTACAGTCATCCCGT c)…

A: Promoter It is a DNA sequence that controls whether a gene is turned on or off. The promoter…

Q: Which of the following is true of phase variation? A) O It is triggered by stalled ribosomes. B) O…

A: Phase variation is a feature seen in Salmonella, in which it can withstand unfavorable environmental…

Q: Which of the following statements is/are true about proteins destined to be G-protein coupled…

A: G protein coupled receptors (GPCRs) are membrane proteins that allow cells to translate…

Q: In pancreatic beta cells, transport of secretory vesicles of the protein hormone insulin from the…

A: The transport of secretory vesicles of the insulin from the trans Golgi toward the plasma membrane…

Q: For each of the following statements regarding protein import into mitochondria, indicate whether it…

A: Mitochondria are double-membraned bound organelles seen inside the cell. They are the site of energy…

Q: In a lysosomal storage disease, newly synthesized lysosome hydrolases are secreted from the cells…

A: Lysosomal storage diseases: Lysosomal storage diseases (LSDs) are a group of genetic disorders that…

Q: A temperature-sensitive mutant allele of Ras causes the Ras protein to be fixed in the GDP-bound…

A: Introduction The various kinds of genes that have an abnormal function at higher temperatures and…

Q: If you express a Rab with a mutation in its GEF binding domain in cells, you would observe the…

A: Plasma-membrane is the outer membrane of animal cell. It protects the cell from the external…

Q: inducible operon

A: Transcription: The process of copying of a segment of DNA into RNA is known as Transcription. The…

Q: The absence of tryptophan (trp) in E. coli A) O produces an inactive trp repressor B) O causes…

A: The gene regulation in prokaryotes (E. coli) is controlled by operon system. On operon system…

Q: Farnesylation of ras allows it to:  a.) be tethered to the plasma membrane. b.) be an integral…

A: Farnesylation is a post-translational modification that includes the addition of a farnesyl lipid to…

Q: engineered a version of the Bax protein that is functional, but is mislocalized to the plasma…

A: Apoptosis is an internal cellular mechanism of cell death to protect healthy cells. It results in…

Q: What statement is correct regarding the synthesis of actin monomers? a) They would be synthesized on…

A:

Q: PDHC is an enzyme complex consisting of 3 different enzymes. Which of the following processes…

A: Pyruvate dehydrogenase complex (PDHC) is the enzyme that converts pyruvate to acetyl Co-A with the…

Q: 1) Which of the following contains all of the information required to target a precursor protein…

A: e. None of the above The correct answer is none of the above. Targeting of a precursor protein from…

Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.